Malware analysis WinLocker.exe Malicious activity | ANY.RUN

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File name:	WinLocker.exe
Full analysis:	https://app.any.run/tasks/06b1b8f8-1d4d-4002-addc-c86c7d081d64
Verdict:	Malicious activity
Analysis date:	September 10, 2024, 16:13:08
OS:	Windows 10 Professional (build: 19045, 64 bit)
Indicators:
MIME:	application/x-dosexec
File info:	PE32 executable (GUI) Intel 80386, for MS Windows
MD5:	1C620A1B027E461248279C7E081A71A3
SHA1:	7655DF116CC0810D368B1EFE743002F87AE52661
SHA256:	314C03E98209EDBBA09788406922FA27A117D93AB6651B2AA0F43FE5778646D8
SSDEEP:	98304:9cCyub1kqAzajfr/qSRmkgT2908yj2fBRhdLfCdat6zcMlU3UJfdA48X6GM+V:Guf

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
- Disables the Find the Start menu
  - WinLocker.exe (PID: 4440)
- Disables the Shutdown in the Start menu
  - WinLocker.exe (PID: 4440)
- UAC/LUA settings modification
  - WinLocker.exe (PID: 4440)
- Disables the Run the Start menu
  - WinLocker.exe (PID: 4440)
- Changes the autorun value in the registry
  - WinLocker.exe (PID: 4440)
- Disables the LogOff the Start menu
  - WinLocker.exe (PID: 4440)
- Changes image file execution options
  - WinLocker.exe (PID: 4440)
SUSPICIOUS
- Creates file in the systems drive root
  - WinLocker.exe (PID: 4440)
- Reads security settings of Internet Explorer
  - ShellExperienceHost.exe (PID: 5548)
- There is functionality for taking screenshot (YARA)
  - WinLocker.exe (PID: 4440)
INFO
- Reads the computer name
  - WinLocker.exe (PID: 4440)
  - ShellExperienceHost.exe (PID: 5548)
- Checks supported languages
  - ShellExperienceHost.exe (PID: 5548)
  - WinLocker.exe (PID: 4440)
- Create files in a temporary directory
  - WinLocker.exe (PID: 4440)

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 Borland Delphi 7 (94.6)
.exe	\|	Win32 Executable Delphi generic (2)
.scr	\|	Windows screen saver (1.8)
.exe	\|	Win32 Executable (generic) (0.6)
.exe	\|	Win16/32 Executable Delphi generic (0.2)

EXIF

EXE

MachineType:	Intel 386 or later, and compatibles
TimeStamp:	1992:06:19 22:22:17+00:00
ImageFileCharacteristics:	Executable, No line numbers, No symbols, Bytes reversed lo, 32-bit, Bytes reversed hi
PEType:	PE32
LinkerVersion:	2.25
CodeSize:	1146368
InitializedDataSize:	1500160
UninitializedDataSize:	-
EntryPoint:	0x118d94
OSVersion:	4
ImageVersion:	-
SubsystemVersion:	4
Subsystem:	Windows GUI

No data.

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All screenshots are available in the full report

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Total processes

130

Monitored processes

Malicious processes

Suspicious processes

Behavior graph

Click at the process to see the details

Process information

PID

CMD

Path

Indicators

Parent process

4440

"C:\Users\admin\AppData\Local\Temp\WinLocker.exe"

C:\Users\admin\AppData\Local\Temp\WinLocker.exe

explorer.exe

User:

admin

Integrity Level:

HIGH

Modules

Images
c:\users\admin\appdata\local\temp\winlocker.exe
c:\windows\system32\ntdll.dll
c:\windows\syswow64\ntdll.dll
c:\windows\system32\wow64.dll
c:\windows\system32\wow64win.dll
c:\windows\system32\wow64cpu.dll
c:\windows\syswow64\kernel32.dll
c:\windows\syswow64\kernelbase.dll
c:\windows\syswow64\apphelp.dll
c:\windows\syswow64\user32.dll

5548

"C:\WINDOWS\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe" -ServerName:App.AppXtk181tbxbce2qsex02s8tw7hfxa9xb3t.mca

C:\Windows\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe

—

svchost.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Windows Shell Experience Host

Exit code:

Version:

10.0.19041.3758 (WinBuild.160101.0800)

Modules

Images
c:\windows\systemapps\shellexperiencehost_cw5n1h2txyewy\shellexperiencehost.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\combase.dll
c:\windows\system32\ucrtbase.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\oleaut32.dll
c:\windows\system32\msvcp_win.dll
c:\windows\system32\wincorlib.dll

6288

"C:\WINDOWS\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca

C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe

—

svchost.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Search application

Exit code:

2147945463

Version:

10.0.19041.3996 (WinBuild.160101.0800)

Modules

Images
c:\windows\systemapps\microsoft.windows.search_cw5n1h2txyewy\searchapp.exe
c:\windows\system32\ntdll.dll

6676

"C:\Users\admin\AppData\Local\Temp\WinLocker.exe"

C:\Users\admin\AppData\Local\Temp\WinLocker.exe

—

explorer.exe

User:

admin

Integrity Level:

MEDIUM

Exit code:

3221226540

Modules

Images
c:\users\admin\appdata\local\temp\winlocker.exe
c:\windows\system32\ntdll.dll
c:\windows\syswow64\ntdll.dll

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Total events

538

Read events

510

Write events

Delete events

Modification events


(PID) Process:	(4440) WinLocker.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\Policies\Microsoft\Windows\System
Operation:	write	Name:	DisableCMD
Value: 2
(PID) Process:	(4440) WinLocker.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System
Operation:	write	Name:	EnableLUA
Value: 0
(PID) Process:	(4440) WinLocker.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce
Operation:	write	Name:	Java
Value: C:\Users\admin\AppData\Local\Temp\WinLocker.exe
(PID) Process:	(4440) WinLocker.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\explorer.exe
Operation:	write	Name:	Debugger
Value: C:\Users\admin\AppData\Local\Temp\WinLocker.exe
(PID) Process:	(4440) WinLocker.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\taskmgr.exe
Operation:	write	Name:	Debugger
Value: C:\Users\admin\AppData\Local\Temp\WinLocker.exe
(PID) Process:	(4440) WinLocker.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Uninstall
Operation:	write	Name:	NoAddRemovePrograms
Value: 1
(PID) Process:	(4440) WinLocker.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System
Operation:	write	Name:	HideFastUserSwitching
Value: 1
(PID) Process:	(4440) WinLocker.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Advanced
Operation:	write	Name:	NoClose
Value: 1
(PID) Process:	(4440) WinLocker.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System
Operation:	write	Name:	DisableLockWorkstation
Value: 1
(PID) Process:	(4440) WinLocker.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System
Operation:	write	Name:	DisableChangePassword
Value: 1

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Executable files

Suspicious files

Text files

Unknown types

Dropped files

PID	Process	Filename		Type
4440	WinLocker.exe	\Device\Harddisk0\DR0		—
		MD5:—	SHA256:—
4440	WinLocker.exe	C:\Users\admin\AppData\Local\Temp\Time2.ini		text
		MD5:33498F44B01748F2C22885625AE03B7B	SHA256:882DA845177022E108A6C468625A168EE19FCD523C56F1FF3993E8F101FBFD19
4440	WinLocker.exe	C:\Users\admin\AppData\Local\Temp\Time.ini		text
		MD5:EB13B7EAF7F30D348E471F0907B31AAC	SHA256:94BA214735774FB4E68BE906C3E181D29C71DBBCD10540E70BA7021FCF5EA3AA
4440	WinLocker.exe	C:\MBR.bin		binary
		MD5:0DA182957D5B2BD11A50DA7293ACEB77	SHA256:4EAE113930004A304FCAB258B075265F9E934A46D9CA09665258ACCDA77F87D2

Download PCAP, analyze network streams, HTTP content and a lot more at the full report

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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
6020	svchost.exe	GET	200	88.221.169.152:80	http://www.microsoft.com/pkiops/crl/MicSecSerCA2011_2011-10-18.crl	unknown	—	—	whitelisted
5044	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
5044	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
1496	svchost.exe	GET	200	192.229.221.95:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D	unknown	—	—	whitelisted

Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID	Process	IP	Domain	ASN	CN	Reputation
6020	svchost.exe	51.104.136.2:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	whitelisted
2120	MoUsoCoreWorker.exe	51.104.136.2:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	whitelisted
1332	RUXIMICS.exe	51.104.136.2:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	whitelisted
4	System	192.168.100.255:138	—	—	—	whitelisted
6020	svchost.exe	52.167.249.196:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	US	whitelisted
6020	svchost.exe	88.221.169.152:80	www.microsoft.com	AKAMAI-AS	DE	whitelisted
3260	svchost.exe	40.113.110.67:443	client.wns.windows.com	MICROSOFT-CORP-MSN-AS-BLOCK	NL	whitelisted
2120	MoUsoCoreWorker.exe	20.106.86.13:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	US	whitelisted
1496	svchost.exe	20.190.159.64:443	login.live.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	whitelisted
1496	svchost.exe	192.229.221.95:80	ocsp.digicert.com	EDGECAST	US	whitelisted

DNS requests

Domain	IP	Reputation
settings-win.data.microsoft.com	51.104.136.2 52.167.249.196 20.106.86.13 20.49.150.241	whitelisted
google.com	142.250.185.238	whitelisted
www.microsoft.com	88.221.169.152 23.35.229.160	whitelisted
client.wns.windows.com	40.113.110.67	whitelisted
login.live.com	20.190.159.64 20.190.159.73 20.190.159.0 40.126.31.69 20.190.159.23 20.190.159.2 20.190.159.75 20.190.159.71	whitelisted
ocsp.digicert.com	192.229.221.95	whitelisted
slscr.update.microsoft.com	20.12.23.50	whitelisted
fe3cr.delivery.mp.microsoft.com	20.3.187.198	whitelisted

Threats

No threats detected

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No debug info

General Info

WinLocker.exe

1C620A1B027E461248279C7E081A71A3

7655DF116CC0810D368B1EFE743002F87AE52661

314C03E98209EDBBA09788406922FA27A117D93AB6651B2AA0F43FE5778646D8

98304:9cCyub1kqAzajfr/qSRmkgT2908yj2fBRhdLfCdat6zcMlU3UJfdA48X6GM+V:Guf

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

Disables the Find the Start menu

Disables the Shutdown in the Start menu

UAC/LUA settings modification

Disables the Run the Start menu

Changes the autorun value in the registry

Disables the LogOff the Start menu

Changes image file execution options

SUSPICIOUS

Creates file in the systems drive root

Reads security settings of Internet Explorer

There is functionality for taking screenshot (YARA)

INFO

Reads the computer name

Checks supported languages

Create files in a temporary directory

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

Registry activity

Modification events

Files activity

Dropped files

Network activity

HTTP requests

Connections

DNS requests

Threats

Debug output strings