Malware analysis Bloxstrap-v2.9.0.exe Malicious activity

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File name:	Bloxstrap-v2.9.0.exe
Full analysis:	https://app.any.run/tasks/048a3947-2142-4924-9cef-adfca7d51160
Verdict:	Malicious activity
Analysis date:	April 17, 2025, 09:19:59
OS:	Windows 10 Professional (build: 19044, 64 bit)
Indicators:
MIME:	application/vnd.microsoft.portable-executable
File info:	PE32 executable (GUI) Intel 80386, for MS Windows, 8 sections
MD5:	B154CB83069A96714DF2294023542EB2
SHA1:	3DE11CC38887225430BA88974371B3F4179394AF
SHA256:	7C2A96C7A5B4597C8E4442A0207974B6F14B220A6ED5837F40CBD32C43CA7FA0
SSDEEP:	98304:IIKPw2I1I10000x+pj1ImLaItwi74PZJ4N572NC5HYuM1D3Gd2nnnnnnnnnnnnnT:CRevNunfm2

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:: off
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
  - $77-System.exe (PID: 5244)
SUSPICIOUS
- Executable content was dropped or overwritten
  - Bloxstrap-v2.9.0.exe (PID: 5668)
- Reads security settings of Internet Explorer
  - Bloxstrap-v2.9.0.exe (PID: 5668)
- The process creates files with name similar to system file names
  - Bloxstrap-v2.9.0.exe (PID: 5668)
- Executing commands from a ".bat" file
  - Bloxstrap-v2.9.0.exe (PID: 5668)
- Starts CMD.EXE for commands execution
  - Bloxstrap-v2.9.0.exe (PID: 5668)
INFO
- Checks supported languages
  - Bloxstrap-v2.9.0.exe (PID: 6620)
  - Bloxstrap-v2.9.0.exe (PID: 5668)
  - $77-System.exe (PID: 5244)
- Reads the computer name
  - Bloxstrap-v2.9.0.exe (PID: 6620)
  - Bloxstrap-v2.9.0.exe (PID: 5668)
  - $77-System.exe (PID: 5244)
- Create files in a temporary directory
  - Bloxstrap-v2.9.0.exe (PID: 5668)
- Process checks computer location settings
  - Bloxstrap-v2.9.0.exe (PID: 5668)
- Checks proxy server information
  - slui.exe (PID: 2136)
- Reads the software policy settings
  - slui.exe (PID: 5892)
  - slui.exe (PID: 2136)

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 Delphi generic (37.4)
.scr	\|	Windows screen saver (34.5)
.exe	\|	Win32 Executable (generic) (11.9)
.exe	\|	Win16/32 Executable Delphi generic (5.4)
.exe	\|	Generic Win/DOS Executable (5.2)

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:	5120
InitializedDataSize:	13454336
UninitializedDataSize:	-
EntryPoint:	0x20cc
OSVersion:	4
ImageVersion:	-
SubsystemVersion:	4
Subsystem:	Windows GUI
FileVersionNumber:	2.9.0.0
ProductVersionNumber:	2.9.0.0
FileFlagsMask:	0x003f
FileFlags:	(none)
FileOS:	Win32
ObjectFileType:	Executable application
FileSubtype:	-
LanguageCode:	Neutral
CharacterSet:	Unicode
CompanyName:	Bloxstrap
FileDescription:	Bloxstrap
FileVersion:	2.9.0
InternalName:	Bloxstrap.dll
LegalCopyright:
OriginalFileName:	Bloxstrap.dll
ProductName:	Bloxstrap
ProductVersion:	2.9.0
AssemblyVersion:	2.9.0.0

No data.

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All screenshots are available in the full report

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Total processes

138

Monitored processes

Malicious processes

Suspicious processes

Behavior graph

Click at the process to see the details

Process information

PID

CMD

Path

Indicators

Parent process

1228

C:\WINDOWS\system32\SppExtComObj.exe -Embedding

C:\Windows\System32\SppExtComObj.Exe

—

svchost.exe

User:

NETWORK SERVICE

Company:

Microsoft Corporation

Integrity Level:

SYSTEM

Description:

KMS Connection Broker

Exit code:

Version:

10.0.19041.3996 (WinBuild.160101.0800)

Modules

Images
c:\windows\system32\sppextcomobj.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\oleaut32.dll

2136

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

C:\Windows\System32\conhost.exe

—

cmd.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Console Window Host

Exit code:

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

2136

C:\WINDOWS\System32\slui.exe -Embedding

C:\Windows\System32\slui.exe

svchost.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Windows Activation Client

Exit code:

Version:

10.0.19041.1 (WinBuild.160101.0800)

Modules

Images
c:\windows\system32\slui.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

2140

C:\WINDOWS\system32\cmd.exe /c ""C:\Users\admin\AppData\Local\Temp\UAC.bat" "

C:\Windows\SysWOW64\cmd.exe

—

Bloxstrap-v2.9.0.exe

User:

admin

Company:

Microsoft Corporation

Integrity Level:

MEDIUM

Description:

Windows Command Processor

Exit code:

Version:

10.0.19041.3636 (WinBuild.160101.0800)

Modules

Images
c:\windows\syswow64\cmd.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\msvcrt.dll

5244

"C:\Users\admin\AppData\Local\Temp\$77-System.exe"

C:\Users\admin\AppData\Local\Temp\$77-System.exe

—

Bloxstrap-v2.9.0.exe

User:

admin

Company:

Google LLC

Integrity Level:

MEDIUM

Description:

Google Chrome

Exit code:

Version:

135.0.7049.85

Modules

Images
c:\users\admin\appdata\local\temp\$77-system.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\mscoree.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

5668

"C:\Users\admin\Desktop\Bloxstrap-v2.9.0.exe"

C:\Users\admin\Desktop\Bloxstrap-v2.9.0.exe

explorer.exe

User:

admin

Company:

Bloxstrap

Integrity Level:

MEDIUM

Description:

Bloxstrap

Exit code:

Version:

2.9.0

Modules

Images
c:\users\admin\desktop\bloxstrap-v2.9.0.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\shell32.dll

5892

"C:\WINDOWS\System32\SLUI.exe" RuleId=3482d82e-ca2c-4e1f-8864-da0267b484b2;Action=AutoActivate;AppId=55c92734-d682-4d71-983e-d6ec3f16059f;SkuId=4de7cb65-cdf1-4de9-8ae8-e3cce27b9f2c;NotificationInterval=1440;Trigger=TimerEvent

C:\Windows\System32\slui.exe

SppExtComObj.Exe

User:

NETWORK SERVICE

Company:

Microsoft Corporation

Integrity Level:

SYSTEM

Description:

Windows Activation Client

Exit code:

Version:

10.0.19041.1 (WinBuild.160101.0800)

Modules

Images
c:\windows\system32\slui.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

6620

"C:\Users\admin\AppData\Local\Temp\Bloxstrap-v2.9.0.exe"

C:\Users\admin\AppData\Local\Temp\Bloxstrap-v2.9.0.exe

—

Bloxstrap-v2.9.0.exe

User:

admin

Company:

Bloxstrap

Integrity Level:

MEDIUM

Description:

Bloxstrap

Version:

2.9.0

Modules

Images
c:\users\admin\appdata\local\temp\bloxstrap-v2.9.0.exe
c:\windows\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\apphelp.dll
c:\windows\system32\user32.dll
c:\windows\system32\win32u.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\gdi32full.dll
c:\windows\system32\msvcp_win.dll

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Total events

1 901

Read events

1 900

Write events

Delete events

Modification events


(PID) Process:	(5668) Bloxstrap-v2.9.0.exe	Key:	HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer
Operation:	write	Name:	SlowContextMenuEntries
Value: 6024B221EA3A6910A2DC08002B30309D0A010000BD0E0C47735D584D9CEDE91E22E23282770100000114020000000000C0000000000000468D0000006078A409B011A54DAFA526D86198A780390100009AD298B2EDA6DE11BA8CA68E55D895936E000000

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Executable files

Suspicious files

Text files

Unknown types

Dropped files

PID	Process	Filename		Type
5668	Bloxstrap-v2.9.0.exe	C:\Users\admin\AppData\Local\Temp\Bloxstrap-v2.9.0.exe		executable
		MD5:C6117D3B5020B8FA5E48B6DBF5BEFABB	SHA256:40D3370DCA2B21A3051AD89E387BA12443C0B8DFAC7720DEE64E9F7117D502D7
5668	Bloxstrap-v2.9.0.exe	C:\Users\admin\AppData\Local\Temp\$77-System.exe		executable
		MD5:FB163D25CB191954C9324D0F2AF6A28A	SHA256:5BABD30DC0A412CF7EB2C961B1111A84387015C82CA3006A2B7CC0CB3D201D4D
5668	Bloxstrap-v2.9.0.exe	C:\Users\admin\AppData\Local\Temp\UAC.bat		text
		MD5:2A2A26323761CBCE99636678910BC6A4	SHA256:915024EBEDB95C6CB339FD6DFF3F33BB8EC3E9888FDE6D01557CC75B9B4A79CB

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
—	—	GET	200	2.16.164.40:80	http://crl.microsoft.com/pki/crl/products/MicRooCerAut2011_2011_03_22.crl	unknown	—	—	whitelisted
6544	svchost.exe	GET	200	2.23.77.188:80	http://ocsp.digicert.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBSAUQYBMq2awn1Rh6Doh%2FsBYgFV7gQUA95QNVbRTLtm8KPiGxvDl7I90VUCEAJ0LqoXyo4hxxe7H%2Fz9DKA%3D	unknown	—	—	whitelisted
6388	SIHClient.exe	GET	200	95.101.149.131:80	http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Product%20Root%20Certificate%20Authority%202018.crl	unknown	—	—	whitelisted
6388	SIHClient.exe	GET	200	95.101.149.131:80	http://www.microsoft.com/pkiops/crl/Microsoft%20ECC%20Update%20Secure%20Server%20CA%202.1.crl	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
—	—	4.231.128.59:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	whitelisted
4	System	192.168.100.255:137	—	—	—	whitelisted
—	—	2.16.164.40:80	crl.microsoft.com	Akamai International B.V.	NL	whitelisted
2104	svchost.exe	4.231.128.59:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	whitelisted
4	System	192.168.100.255:138	—	—	—	whitelisted
6544	svchost.exe	20.190.147.7:443	login.live.com	MICROSOFT-CORP-MSN-AS-BLOCK	FR	whitelisted
6544	svchost.exe	2.23.77.188:80	ocsp.digicert.com	AKAMAI-AS	DE	whitelisted
3216	svchost.exe	172.211.123.250:443	client.wns.windows.com	MICROSOFT-CORP-MSN-AS-BLOCK	FR	whitelisted
2112	svchost.exe	4.231.128.59:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	IE	whitelisted
2104	svchost.exe	51.124.78.146:443	settings-win.data.microsoft.com	MICROSOFT-CORP-MSN-AS-BLOCK	NL	whitelisted

DNS requests

Domain	IP	Reputation
google.com	142.250.185.78	whitelisted
crl.microsoft.com	2.16.164.40 2.16.164.32 2.16.164.11 2.16.164.83 2.16.164.74 2.16.164.10 2.16.164.34 2.16.164.75 2.16.164.26	whitelisted
login.live.com	20.190.147.7 20.190.147.0 20.190.147.11 20.190.147.12 20.190.147.6 20.190.177.85 20.190.177.148 20.190.177.20	whitelisted
ocsp.digicert.com	2.23.77.188	whitelisted
client.wns.windows.com	172.211.123.250 172.211.123.249	whitelisted
settings-win.data.microsoft.com	4.231.128.59 51.124.78.146	whitelisted
slscr.update.microsoft.com	172.202.163.200	whitelisted
www.microsoft.com	95.101.149.131	whitelisted
fe3cr.delivery.mp.microsoft.com	13.85.23.206	whitelisted
activation-v2.sls.microsoft.com	40.91.76.224	whitelisted

Threats

No threats detected

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No debug info

General Info

Bloxstrap-v2.9.0.exe

B154CB83069A96714DF2294023542EB2

3DE11CC38887225430BA88974371B3F4179394AF

7C2A96C7A5B4597C8E4442A0207974B6F14B220A6ED5837F40CBD32C43CA7FA0

98304:IIKPw2I1I10000x+pj1ImLaItwi74PZJ4N572NC5HYuM1D3Gd2nnnnnnnnnnnnnT:CRevNunfm2

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

Executing a file with an untrusted certificate

SUSPICIOUS

Executable content was dropped or overwritten

Reads security settings of Internet Explorer

The process creates files with name similar to system file names

Executing commands from a ".bat" file

Starts CMD.EXE for commands execution

INFO

Checks supported languages

Reads the computer name

Create files in a temporary directory

Process checks computer location settings

Checks proxy server information

Reads the software policy 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

Registry activity

Modification events

Files activity

Dropped files

Network activity

HTTP requests

Connections

DNS requests

Threats

Debug output strings