Malware analysis portmaster-installer.exe Malicious activity

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File name:	portmaster-installer.exe
Full analysis:	https://app.any.run/tasks/23556b2b-0478-4c83-b5a7-7fdbbe5f7732
Verdict:	Malicious activity
Analysis date:	January 26, 2025, 22:58:13
OS:	Windows 10 Professional (build: 19045, 64 bit)
Tags:	arch-scr arch-doc golang
Indicators:
MIME:	application/vnd.microsoft.portable-executable
File info:	PE32 executable (GUI) Intel 80386, for MS Windows, Nullsoft Installer self-extracting archive, 5 sections
MD5:	6A1673929B17A59E4B26C1BD00B92E6D
SHA1:	93E6D222C35FC77A0F013DB152BBBD71F8065D2D
SHA256:	F43A3E6EEF805925D8C3D5BDBE6AA1848BB5B4D8FCA55C1E7E291E20C6A10C92
SSDEEP:	196608:08I09Mb8d/Mi3W3J6sIsgeEwOQo8pgjLs:5Iy/MmW38ZsgeEwNWjLs

ANY.RUN is an interactive service which provides full access to the guest system. Information in this report could be distorted by user actions and is provided for user acknowledgement as it is. ANY.RUN does not guarantee maliciousness or safety of the content.

Launch configuration

Task duration:: 300 seconds
Heavy Evasion option:
Network geolocation:: off
Additional time used:: 240 seconds
MITM proxy:: off
Privacy:: Public submission
Fakenet option:: off
Route via Tor:: off
Autoconfirmation of UAC:: on
Network:: on

Software preset

Internet Explorer 11.3636.19041.0
Adobe Acrobat (64-bit) (23.001.20093)
Adobe Flash Player 32 NPAPI (32.0.0.465)
Adobe Flash Player 32 PPAPI (32.0.0.465)
CCleaner (6.20)
FileZilla 3.65.0 (3.65.0)
Google Chrome (122.0.6261.70)
Google Update Helper (1.3.36.51)
Java 8 Update 271 (64-bit) (8.0.2710.9)
Java Auto Updater (2.8.271.9)
Microsoft Edge (122.0.2365.59)
Microsoft Edge Update (1.3.185.17)
Microsoft Office Professional 2019 - de-de (16.0.16026.20146)
Microsoft Office Professional 2019 - en-us (16.0.16026.20146)
Microsoft Office Professional 2019 - es-es (16.0.16026.20146)
Microsoft Office Professional 2019 - it-it (16.0.16026.20146)
Microsoft Office Professional 2019 - ja-jp (16.0.16026.20146)
Microsoft Office Professional 2019 - ko-kr (16.0.16026.20146)
Microsoft Office Professional 2019 - pt-br (16.0.16026.20146)
Microsoft Office Professional 2019 - tr-tr (16.0.16026.20146)
Microsoft Office Professionnel 2019 - fr-fr (16.0.16026.20146)
Microsoft Office профессиональный 2019 - ru-ru (16.0.16026.20146)
Microsoft OneNote - en-us (16.0.16026.20146)
Microsoft Update Health Tools (3.74.0.0)
Microsoft Visual C++ 2013 Redistributable (x64) - 12.0.30501 (12.0.30501.0)
Microsoft Visual C++ 2013 x64 Additional Runtime - 12.0.21005 (12.0.21005)
Microsoft Visual C++ 2013 x64 Minimum Runtime - 12.0.21005 (12.0.21005)
Microsoft Visual C++ 2015-2022 Redistributable (x64) - 14.36.32532 (14.36.32532.0)
Microsoft Visual C++ 2015-2022 Redistributable (x86) - 14.36.32532 (14.36.32532.0)
Microsoft Visual C++ 2022 X64 Additional Runtime - 14.36.32532 (14.36.32532)
Microsoft Visual C++ 2022 X64 Minimum Runtime - 14.36.32532 (14.36.32532)
Microsoft Visual C++ 2022 X86 Additional Runtime - 14.36.32532 (14.36.32532)
Microsoft Visual C++ 2022 X86 Minimum Runtime - 14.36.32532 (14.36.32532)
Mozilla Firefox (x64 en-US) (123.0)
Mozilla Maintenance Service (123.0)
Notepad++ (64-bit x64) (7.9.1)
Office 16 Click-to-Run Extensibility Component (16.0.15726.20202)
Office 16 Click-to-Run Licensing Component (16.0.16026.20146)
Office 16 Click-to-Run Localization Component (16.0.15726.20202)
Office 16 Click-to-Run Localization Component (16.0.15928.20198)
PowerShell 7-x64 (7.3.5.0)
Skype version 8.104 (8.104)
Update for Windows 10 for x64-based Systems (KB4023057) (2.59.0.0)
Update for Windows 10 for x64-based Systems (KB4023057) (2.63.0.0)
Update for Windows 10 for x64-based Systems (KB4480730) (2.55.0.0)
Update for Windows 10 for x64-based Systems (KB5001716) (8.93.0.0)
VLC media player (3.0.11)
WinRAR 5.91 (64-bit) (5.91.0)
Windows PC Health Check (3.6.2204.08001)

Hotfixes

Client LanguagePack Package
DotNetRollup
DotNetRollup 481
FodMetadata Package
Foundation Package
Hello Face Package
InternetExplorer Optional Package
KB5003791
KB5011048
KB5015684
KB5033052
LanguageFeatures Basic en us Package
LanguageFeatures Handwriting en us Package
LanguageFeatures OCR en us Package
LanguageFeatures Speech en us Package
LanguageFeatures TextToSpeech en us Package
MSPaint FoD Package
MediaPlayer Package
Microsoft OneCore ApplicationModel Sync Desktop FOD Package
Microsoft OneCore DirectX Database FOD Package
NetFx3 OnDemand Package
Notepad FoD Package
OpenSSH Client Package
PowerShell ISE FOD Package
Printing PMCPPC FoD Package
Printing WFS FoD Package
ProfessionalEdition
QuickAssist Package
RollupFix
ServicingStack
ServicingStack 3989
StepsRecorder Package
TabletPCMath Package
UserExperience Desktop Package
WordPad FoD Package

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MALICIOUS
- Executing a file with an untrusted certificate
  - portmaster-start.exe (PID: 6920)
  - portmaster-start.exe (PID: 6964)
  - portmaster-start.exe (PID: 4996)
  - portmaster-start.exe (PID: 6796)
  - portmaster-start.exe (PID: 7064)
  - portmaster-start.exe (PID: 6248)
  - portmaster-start.exe (PID: 7440)
- Create files in the Startup directory
  - portmaster-installer.exe (PID: 6432)
- Changes powershell execution policy (Bypass)
  - portmaster-core_v1-6-10.exe (PID: 3908)
- Bypass execution policy to execute commands
  - powershell.exe (PID: 4012)
  - powershell.exe (PID: 7280)
SUSPICIOUS
- Malware-specific behavior (creating "System.dll" in Temp)
  - portmaster-installer.exe (PID: 6432)
- Executable content was dropped or overwritten
  - portmaster-installer.exe (PID: 6432)
  - portmaster-start.exe (PID: 6964)
  - portmaster-core_v1-6-10.exe (PID: 3908)
- The process creates files with name similar to system file names
  - portmaster-installer.exe (PID: 6432)
- There is functionality for taking screenshot (YARA)
  - portmaster-installer.exe (PID: 6432)
- Drops a system driver (possible attempt to evade defenses)
  - portmaster-start.exe (PID: 6964)
- Found IP address in command line
  - powershell.exe (PID: 4012)
- Starts POWERSHELL.EXE for commands execution
  - portmaster-core_v1-6-10.exe (PID: 3908)
- Process uses powershell cmdlet to discover network configuration
  - portmaster-core_v1-6-10.exe (PID: 3908)
- Process drops legitimate windows executable
  - portmaster-start.exe (PID: 6964)
- Creates a software uninstall entry
  - portmaster-installer.exe (PID: 6432)
- The process bypasses the loading of PowerShell profile settings
  - portmaster-core_v1-6-10.exe (PID: 3908)
- The process hide an interactive prompt from the user
  - portmaster-core_v1-6-10.exe (PID: 3908)
- The process executes via Task Scheduler
  - PLUGScheduler.exe (PID: 4156)
- Get information on the list of running processes
  - portmaster-core_v1-6-10.exe (PID: 3908)
- Application launched itself
  - portmaster-app_v0-2-8.exe (PID: 6148)
- Connects to unusual port
  - portmaster-core_v1-6-10.exe (PID: 3908)
INFO
- Creates files in the program directory
  - portmaster-installer.exe (PID: 6432)
  - portmaster-start.exe (PID: 6920)
  - portmaster-start.exe (PID: 6964)
  - portmaster-start.exe (PID: 4996)
  - portmaster-core_v1-6-10.exe (PID: 3908)
  - PLUGScheduler.exe (PID: 4156)
  - portmaster-start.exe (PID: 6796)
  - portmaster-start.exe (PID: 7064)
  - portmaster-app_v0-2-8.exe (PID: 6148)
- The sample compiled with english language support
  - portmaster-installer.exe (PID: 6432)
  - portmaster-start.exe (PID: 6964)
- Reads product name
  - portmaster-start.exe (PID: 6920)
  - portmaster-start.exe (PID: 6964)
  - portmaster-start.exe (PID: 4996)
  - portmaster-core_v1-6-10.exe (PID: 3908)
  - portmaster-start.exe (PID: 6796)
  - portmaster-notifier_v0-3-6.exe (PID: 6892)
  - portmaster-start.exe (PID: 7064)
  - portmaster-app_v0-2-8.exe (PID: 6148)
  - portmaster-app_v0-2-8.exe (PID: 7040)
  - portmaster-start.exe (PID: 6248)
  - portmaster-start.exe (PID: 7440)
- Checks supported languages
  - portmaster-start.exe (PID: 6920)
  - portmaster-start.exe (PID: 6964)
  - portmaster-start.exe (PID: 4996)
  - portmaster-start.exe (PID: 6796)
  - portmaster-core_v1-6-10.exe (PID: 3908)
  - PLUGScheduler.exe (PID: 4156)
  - portmaster-notifier_v0-3-6.exe (PID: 6892)
  - portmaster-start.exe (PID: 7064)
  - portmaster-start.exe (PID: 6248)
  - portmaster-app_v0-2-8.exe (PID: 5036)
  - portmaster-app_v0-2-8.exe (PID: 6148)
  - portmaster-app_v0-2-8.exe (PID: 4192)
  - portmaster-app_v0-2-8.exe (PID: 7040)
  - portmaster-app_v0-2-8.exe (PID: 7568)
  - portmaster-start.exe (PID: 7440)
  - portmaster-app_v0-2-8.exe (PID: 7376)
- Reads Environment values
  - portmaster-start.exe (PID: 6920)
  - portmaster-start.exe (PID: 6964)
  - portmaster-start.exe (PID: 4996)
  - portmaster-core_v1-6-10.exe (PID: 3908)
  - portmaster-start.exe (PID: 6796)
  - portmaster-notifier_v0-3-6.exe (PID: 6892)
  - portmaster-start.exe (PID: 7064)
  - portmaster-app_v0-2-8.exe (PID: 6148)
  - portmaster-start.exe (PID: 6248)
  - portmaster-start.exe (PID: 7440)
  - portmaster-app_v0-2-8.exe (PID: 7040)
- Create files in a temporary directory
  - portmaster-installer.exe (PID: 6432)
  - portmaster-notifier_v0-3-6.exe (PID: 6892)
  - portmaster-app_v0-2-8.exe (PID: 6148)
- Reads the computer name
  - portmaster-start.exe (PID: 6920)
  - portmaster-start.exe (PID: 6964)
  - portmaster-start.exe (PID: 4996)
  - portmaster-core_v1-6-10.exe (PID: 3908)
  - PLUGScheduler.exe (PID: 4156)
  - portmaster-start.exe (PID: 6796)
  - portmaster-notifier_v0-3-6.exe (PID: 6892)
  - portmaster-start.exe (PID: 7064)
  - portmaster-app_v0-2-8.exe (PID: 6148)
  - portmaster-start.exe (PID: 6248)
  - portmaster-app_v0-2-8.exe (PID: 5036)
  - portmaster-app_v0-2-8.exe (PID: 4192)
  - portmaster-start.exe (PID: 7440)
- Reads the software policy settings
  - portmaster-start.exe (PID: 6920)
  - portmaster-start.exe (PID: 6964)
  - portmaster-core_v1-6-10.exe (PID: 3908)
  - powershell.exe (PID: 4012)
  - powershell.exe (PID: 7280)
- Reads the machine GUID from the registry
  - portmaster-start.exe (PID: 6920)
  - portmaster-start.exe (PID: 6964)
  - portmaster-core_v1-6-10.exe (PID: 3908)
  - portmaster-app_v0-2-8.exe (PID: 6148)
- Application based on Golang
  - portmaster-start.exe (PID: 6964)
- Drops encrypted JS script (Microsoft Script Encoder)
  - portmaster-core_v1-6-10.exe (PID: 3908)
- Reads security settings of Internet Explorer
  - powershell.exe (PID: 4012)
  - powershell.exe (PID: 7280)
- Manual execution by a user
  - portmaster-start.exe (PID: 6796)
  - portmaster-start.exe (PID: 7064)
- Creates files or folders in the user directory
  - portmaster-notifier_v0-3-6.exe (PID: 6892)
  - portmaster-app_v0-2-8.exe (PID: 6148)
  - portmaster-app_v0-2-8.exe (PID: 5036)
- Checks proxy server information
  - portmaster-app_v0-2-8.exe (PID: 6148)
- Process checks computer location settings
  - portmaster-app_v0-2-8.exe (PID: 6148)
  - portmaster-app_v0-2-8.exe (PID: 7040)

Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report

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No Malware configuration.

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TRiD

.exe	\|	Win32 Executable MS Visual C++ (generic) (42.2)
.exe	\|	Win64 Executable (generic) (37.3)
.dll	\|	Win32 Dynamic Link Library (generic) (8.8)
.exe	\|	Win32 Executable (generic) (6)
.exe	\|	Generic Win/DOS Executable (2.7)

EXIF

EXE

MachineType:	Intel 386 or later, and compatibles
TimeStamp:	2019:12:16 00:50:53+00:00
ImageFileCharacteristics:	No relocs, Executable, No line numbers, No symbols, 32-bit
PEType:	PE32
LinkerVersion:	6
CodeSize:	26112
InitializedDataSize:	141824
UninitializedDataSize:	2048
EntryPoint:	0x350d
OSVersion:	4
ImageVersion:	6
SubsystemVersion:	4
Subsystem:	Windows GUI
FileVersionNumber:	1.0.13.0
ProductVersionNumber:	1.0.13.0
FileFlagsMask:	0x0000
FileFlags:	(none)
FileOS:	Win32
ObjectFileType:	Executable application
FileSubtype:	-
LanguageCode:	English (U.S.)
CharacterSet:	Unicode
CompanyName:	Safing ICS Technologies GmbH
FileDescription:	Portmaster Application Firewall
FileVersion:	1.0.13.0
LegalCopyright:	Safing ICS Technologies GmbH
ProductName:	Portmaster
ProductVersion:	1.0.13.0

No data.

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All screenshots are available in the full report

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Total processes

264

Monitored processes

Malicious processes

Suspicious processes

Behavior graph

Click at the process to see the details

Process information

PID

CMD

Path

Indicators

Parent process

3908

C:\ProgramData\Safing\Portmaster\updates\windows_amd64\core\portmaster-core_v1-6-10.exe --data C:\ProgramData\Safing\Portmaster --input-signals --data C:\ProgramData\Safing\Portmaster --input-signals

C:\ProgramData\Safing\Portmaster\updates\windows_amd64\core\portmaster-core_v1-6-10.exe

portmaster-start.exe

User:

SYSTEM

Integrity Level:

SYSTEM

Modules

Images
c:\programdata\safing\portmaster\updates\windows_amd64\core\portmaster-core_v1-6-10.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\apphelp.dll
c:\windows\system32\bcryptprimitives.dll
c:\windows\system32\winmm.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\ws2_32.dll
c:\windows\system32\rpcrt4.dll

3916

\??\C:\WINDOWS\system32\conhost.exe 0xffffffff -ForceV1

C:\Windows\System32\conhost.exe

—

portmaster-core_v1-6-10.exe

User:

SYSTEM

Company:

Microsoft Corporation

Integrity Level:

SYSTEM

Description:

Console Window Host

Version:

10.0.19041.1 (WinBuild.160101.0800)

Modules

Images
c:\windows\system32\conhost.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcp_win.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\shcore.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\combase.dll
c:\windows\system32\rpcrt4.dll

4012

powershell.exe -ExecutionPolicy Bypass -NoProfile -NonInteractive "[System.Console]::OutputEncoding = [System.Text.Encoding]::UTF8 Get-NetRoute -DestinationPrefix '0.0.0.0/0' | Select-Object -First 1 | Get-NetIPConfiguration | Format-List"

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

—

portmaster-core_v1-6-10.exe

User:

SYSTEM

Company:

Microsoft Corporation

Integrity Level:

SYSTEM

Description:

Windows PowerShell

Exit code:

Version:

10.0.19041.1 (WinBuild.160101.0800)

Modules

Images
c:\windows\system32\windowspowershell\v1.0\powershell.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\oleaut32.dll
c:\windows\system32\msvcp_win.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\combase.dll
c:\windows\system32\rpcrt4.dll

4156

"C:\Program Files\RUXIM\PLUGscheduler.exe"

C:\Program Files\RUXIM\PLUGScheduler.exe

—

svchost.exe

User:

SYSTEM

Company:

Microsoft Corporation

Integrity Level:

SYSTEM

Description:

Windows Update LifeCycle Component Scheduler

Exit code:

Version:

10.0.19041.3623 (WinBuild.160101.0800)

Modules

Images
c:\program files\ruxim\plugscheduler.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\oleaut32.dll
c:\windows\system32\msvcp_win.dll
c:\windows\system32\combase.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\advapi32.dll

4192

"C:\ProgramData\Safing\Portmaster\updates\windows_amd64\app\portmaster-app_v0-2-8\portmaster-app_v0-2-8.exe" --type=gpu-process --user-data-dir="C:\Users\admin\AppData\Roaming\Portmaster" --gpu-preferences=WAAAAAAAAADgAAAMAAAAAAAAAAAAAAAAAABgAAAAAAA4AAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAGAAAAAAAAAAYAAAAAAAAAAgAAAAAAAAACAAAAAAAAAAIAAAAAAAAAA== --mojo-platform-channel-handle=1732 --field-trial-handle=1736,i,17357745487028409999,493216900013820152,262144 --disable-features=SpareRendererForSitePerProcess,WinDelaySpellcheckServiceInit,WinRetrieveSuggestionsOnlyOnDemand /prefetch:2

C:\ProgramData\Safing\Portmaster\updates\windows_amd64\app\portmaster-app_v0-2-8\portmaster-app_v0-2-8.exe

—

portmaster-app_v0-2-8.exe

User:

admin

Company:

Safing ICS Technologies GmbH

Integrity Level:

LOW

Description:

Portmaster

Exit code:

Version:

0.2.8

Modules

Images
c:\programdata\safing\portmaster\updates\windows_amd64\app\portmaster-app_v0-2-8\portmaster-app_v0-2-8.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\oleaut32.dll
c:\windows\system32\msvcp_win.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\combase.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\ws2_32.dll

4856

tasklist /svc /fi "imagename eq svchost.exe"

C:\Windows\System32\tasklist.exe

—

portmaster-core_v1-6-10.exe

User:

SYSTEM

Company:

Microsoft Corporation

Integrity Level:

SYSTEM

Description:

Lists the current running tasks

Exit code:

Version:

10.0.19041.1 (WinBuild.160101.0800)

Modules

Images
c:\windows\system32\tasklist.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\bcrypt.dll
c:\windows\system32\user32.dll

4996

C:\ProgramData\Safing\Portmaster\portmaster-start.exe install core-service --data=C:\ProgramData\Safing\Portmaster

C:\ProgramData\Safing\Portmaster\portmaster-start.exe

—

portmaster-installer.exe

User:

admin

Integrity Level:

HIGH

Exit code:

Modules

Images
c:\programdata\safing\portmaster\portmaster-start.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\apphelp.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\bcrypt.dll

5036

"C:\ProgramData\Safing\Portmaster\updates\windows_amd64\app\portmaster-app_v0-2-8\portmaster-app_v0-2-8.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --lang=en-US --service-sandbox-type=none --user-data-dir="C:\Users\admin\AppData\Roaming\Portmaster" --mojo-platform-channel-handle=2064 --field-trial-handle=1736,i,17357745487028409999,493216900013820152,262144 --disable-features=SpareRendererForSitePerProcess,WinDelaySpellcheckServiceInit,WinRetrieveSuggestionsOnlyOnDemand /prefetch:8

C:\ProgramData\Safing\Portmaster\updates\windows_amd64\app\portmaster-app_v0-2-8\portmaster-app_v0-2-8.exe

—

portmaster-app_v0-2-8.exe

User:

admin

Company:

Safing ICS Technologies GmbH

Integrity Level:

MEDIUM

Description:

Portmaster

Exit code:

Version:

0.2.8

Modules

Images
c:\programdata\safing\portmaster\updates\windows_amd64\app\portmaster-app_v0-2-8\portmaster-app_v0-2-8.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\oleaut32.dll
c:\windows\system32\msvcp_win.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\combase.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\ws2_32.dll

6148

C:\ProgramData\Safing\Portmaster\updates\windows_amd64\app\portmaster-app_v0-2-8\portmaster-app_v0-2-8.exe --data C:\ProgramData\Safing\Portmaster

C:\ProgramData\Safing\Portmaster\updates\windows_amd64\app\portmaster-app_v0-2-8\portmaster-app_v0-2-8.exe

—

portmaster-start.exe

User:

admin

Company:

Safing ICS Technologies GmbH

Integrity Level:

MEDIUM

Description:

Portmaster

Exit code:

Version:

0.2.8

Modules

Images
c:\programdata\safing\portmaster\updates\windows_amd64\app\portmaster-app_v0-2-8\portmaster-app_v0-2-8.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\oleaut32.dll
c:\windows\system32\msvcp_win.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\combase.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\ws2_32.dll

6248

C:\ProgramData\Safing\Portmaster\portmaster-start notifier --data=C:\ProgramData\Safing\Portmaster

C:\ProgramData\Safing\Portmaster\portmaster-start.exe

—

portmaster-app_v0-2-8.exe

User:

admin

Integrity Level:

MEDIUM

Exit code:

Modules

Images
c:\programdata\safing\portmaster\portmaster-start.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\bcrypt.dll
c:\windows\system32\cryptbase.dll

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Total events

29 024

Read events

28 997

Write events

Delete events

Modification events


(PID) Process:	(6432) portmaster-installer.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall\Portmaster
Operation:	write	Name:	DisplayName
Value: Portmaster
(PID) Process:	(6432) portmaster-installer.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall\Portmaster
Operation:	write	Name:	DisplayVersion
Value: 1.0.13.0
(PID) Process:	(6432) portmaster-installer.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall\Portmaster
Operation:	write	Name:	UninstallString
Value: "C:\ProgramData\Safing\Portmaster\portmaster-uninstaller.exe"
(PID) Process:	(6432) portmaster-installer.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall\Portmaster
Operation:	write	Name:	InstallLocation
Value: "C:\ProgramData\Safing\Portmaster"
(PID) Process:	(6432) portmaster-installer.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall\Portmaster
Operation:	write	Name:	DisplayIcon
Value: "C:\ProgramData\Safing\Portmaster\portmaster.ico"
(PID) Process:	(6432) portmaster-installer.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall\Portmaster
Operation:	write	Name:	Publisher
Value: Safing ICS Technologies GmbH
(PID) Process:	(6432) portmaster-installer.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall\Portmaster
Operation:	write	Name:	HelpLink
Value: https://safing.io
(PID) Process:	(6432) portmaster-installer.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall\Portmaster
Operation:	write	Name:	NoRepair
Value: 1
(PID) Process:	(6432) portmaster-installer.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall\Portmaster
Operation:	write	Name:	NoModify
Value: 1
(PID) Process:	(6148) portmaster-app_v0-2-8.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Spelling\Dictionaries
Operation:	delete value	Name:	en-US
Value:

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Executable files

Suspicious files

182

Text files

Unknown types

Dropped files

PID	Process	Filename		Type
6964	portmaster-start.exe	C:\ProgramData\Safing\Portmaster\updates\tmp\.geoipv4_v20231201-0-1.mmdb.gz2333605409		—
		MD5:—	SHA256:—
6964	portmaster-start.exe	C:\ProgramData\Safing\Portmaster\updates\all\intel\geoip\geoipv4_v20231201-0-1.mmdb.gz		—
		MD5:—	SHA256:—
6964	portmaster-start.exe	C:\ProgramData\Safing\Portmaster\updates\tmp\.geoipv6_v20231201-0-1.mmdb.gz2938716517		—
		MD5:—	SHA256:—
6964	portmaster-start.exe	C:\ProgramData\Safing\Portmaster\updates\all\intel\geoip\geoipv6_v20231201-0-1.mmdb.gz		—
		MD5:—	SHA256:—
6964	portmaster-start.exe	C:\ProgramData\Safing\Portmaster\updates\tmp\.base_v20250101-0-9.dsdl4236602807		—
		MD5:—	SHA256:—
6964	portmaster-start.exe	C:\ProgramData\Safing\Portmaster\updates\all\intel\lists\base_v20250101-0-9.dsdl		—
		MD5:—	SHA256:—
6964	portmaster-start.exe	C:\ProgramData\Safing\Portmaster\updates\tmp\.intermediate_v20250126-0-0.dsdl3397147401		—
		MD5:—	SHA256:—
6964	portmaster-start.exe	C:\ProgramData\Safing\Portmaster\updates\all\intel\lists\intermediate_v20250126-0-0.dsdl		—
		MD5:—	SHA256:—
6432	portmaster-installer.exe	C:\Users\admin\AppData\Local\Temp\nsw5B54.tmp\nsDialogs.dll		executable
		MD5:EC9640B70E07141FEBBE2CD4CC42510F	SHA256:C5BA017732597A82F695B084D1AA7FE3B356168CC66105B9392A9C5B06BE5188
6432	portmaster-installer.exe	C:\ProgramData\Safing\Portmaster\portmaster-start.exe		executable
		MD5:B3A42120E87026F23BABFE1476ADBD0B	SHA256:93183497329E05DA3A0E4AA0B5C10C0001FF4455915E7A1D32CD931BD47D57BC

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HTTP(S) requests

TCP/UDP connections

DNS requests

Threats

HTTP requests

PID	Process	Method	HTTP Code	IP	URL	CN	Type	Size	Reputation
—	—	GET	200	23.48.23.156:80	http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl	unknown	—	—	whitelisted
—	—	GET	200	23.35.229.160:80	http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl	unknown	—	—	whitelisted
4712	MoUsoCoreWorker.exe	GET	200	23.48.23.156:80	http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl	unknown	—	—	whitelisted
4712	MoUsoCoreWorker.exe	GET	200	23.35.229.160:80	http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl	unknown	—	—	whitelisted
5064	SearchApp.exe	GET	200	184.30.131.245:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTrjrydRyt%2BApF3GSPypfHBxR5XtQQUs9tIpPmhxdiuNkHMEWNpYim8S8YCEAI5PUjXAkJafLQcAAsO18o%3D	unknown	—	—	whitelisted
4264	backgroundTaskHost.exe	GET	200	184.30.131.245:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBQ50otx%2Fh0Ztl%2Bz8SiPI7wEWVxDlQQUTiJUIBiV5uNu5g%2F6%2BrkS7QYXjzkCEAUZZSZEml49Gjh0j13P68w%3D	unknown	—	—	whitelisted
5464	SIHClient.exe	GET	200	23.35.229.160:80	http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl	unknown	—	—	whitelisted
—	—	GET	200	184.30.131.245:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D	unknown	—	—	whitelisted
5464	SIHClient.exe	GET	200	23.35.229.160:80	http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl	unknown	—	—	whitelisted

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Connections

PID	Process	IP	Domain	ASN	CN	Reputation
4	System	192.168.100.255:137	—	—	—	whitelisted
4712	MoUsoCoreWorker.exe	23.48.23.156:80	crl.microsoft.com	Akamai International B.V.	DE	whitelisted
—	—	23.48.23.156:80	crl.microsoft.com	Akamai International B.V.	DE	whitelisted
—	—	23.35.229.160:80	www.microsoft.com	AKAMAI-AS	DE	whitelisted
4712	MoUsoCoreWorker.exe	23.35.229.160:80	www.microsoft.com	AKAMAI-AS	DE	whitelisted
—	—	51.104.136.2:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	whitelisted
—	—	92.123.104.34:443	www.bing.com	Akamai International B.V.	DE	whitelisted
4	System	192.168.100.255:138	—	—	—	whitelisted
5064	SearchApp.exe	184.30.131.245:80	ocsp.digicert.com	AKAMAI-AS	US	whitelisted
—	—	23.35.238.131:443	go.microsoft.com	AKAMAI-AS	DE	whitelisted

DNS requests

Domain	IP	Reputation
crl.microsoft.com	23.48.23.156 23.48.23.143	whitelisted
www.microsoft.com	23.35.229.160	whitelisted
google.com	142.250.185.110	whitelisted
settings-win.data.microsoft.com	51.104.136.2 20.73.194.208	whitelisted
www.bing.com	92.123.104.34 92.123.104.62 92.123.104.31 92.123.104.32 92.123.104.38	whitelisted
ocsp.digicert.com	184.30.131.245	whitelisted
go.microsoft.com	23.35.238.131 184.28.89.167	whitelisted
login.live.com	20.190.160.20 40.126.32.72 40.126.32.136 40.126.32.68 40.126.32.134 40.126.32.140 40.126.32.74 20.190.160.22	whitelisted
updates.safing.io	167.235.104.51	unknown
arc.msn.com	20.223.35.26	whitelisted

Threats

PID	Process	Class	Message
3908	portmaster-core_v1-6-10.exe	Misc activity	ET INFO Observed Cloudflare DNS over HTTPS Domain (cloudflare-dns .com in TLS SNI)

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No debug info

General Info

portmaster-installer.exe

6A1673929B17A59E4B26C1BD00B92E6D

93E6D222C35FC77A0F013DB152BBBD71F8065D2D

F43A3E6EEF805925D8C3D5BDBE6AA1848BB5B4D8FCA55C1E7E291E20C6A10C92

196608:08I09Mb8d/Mi3W3J6sIsgeEwOQo8pgjLs:5Iy/MmW38ZsgeEwNWjLs

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

Executing a file with an untrusted certificate

Create files in the Startup directory

Changes powershell execution policy (Bypass)

Bypass execution policy to execute commands

SUSPICIOUS

Malware-specific behavior (creating "System.dll" in Temp)

Executable content was dropped or overwritten

The process creates files with name similar to system file names

There is functionality for taking screenshot (YARA)

Drops a system driver (possible attempt to evade defenses)

Found IP address in command line

Starts POWERSHELL.EXE for commands execution

Process uses powershell cmdlet to discover network configuration

Process drops legitimate windows executable

Creates a software uninstall entry

The process bypasses the loading of PowerShell profile settings

The process hide an interactive prompt from the user

The process executes via Task Scheduler

Get information on the list of running processes

Application launched itself

Connects to unusual port

INFO

Creates files in the program directory

The sample compiled with english language support

Reads product name

Checks supported languages

Reads Environment values

Create files in a temporary directory

Reads the computer name

Reads the software policy settings

Reads the machine GUID from the registry

Application based on Golang

Drops encrypted JS script (Microsoft Script Encoder)

Reads security settings of Internet Explorer

Manual execution by a user

Creates files or folders in the user directory

Checks proxy server information

Process checks computer location settings

Malware configuration

Static information

TRiD

EXIF

EXE

Video and screenshots

Processes

Behavior graph

Specs description

Process information

Information

Modules

Information

Modules

Information

Modules

Information

Modules

Information

Modules

Information

Modules

Information

Modules

Information

Modules

Information

Modules

Information

Modules