Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20250217-en -
resource tags
arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system -
submitted
26/02/2025, 20:49
Static task
static1
Behavioral task
behavioral1
Sample
2230604899758d0f4fe642806176b0b9bca6f740a5736cee8e7b91a7b8d62fef.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2230604899758d0f4fe642806176b0b9bca6f740a5736cee8e7b91a7b8d62fef.exe
Resource
win10v2004-20250217-en
General
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Target
2230604899758d0f4fe642806176b0b9bca6f740a5736cee8e7b91a7b8d62fef.exe
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Size
51KB
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MD5
f30dc786a888eaa0cae095ea689fb839
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SHA1
18e72f5b6f0d0a0e2ab06f006168d70df2d77254
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SHA256
2230604899758d0f4fe642806176b0b9bca6f740a5736cee8e7b91a7b8d62fef
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SHA512
29738c963e30da1f6eb445ffda1788e19dd85554388dc53e648164696fabcdedc9bf122f0cecb4fcb9cd4679531d6061c5c4ab5c0fa3ce035ebc497ad4c19bca
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SSDEEP
1536:e6q10k0EFjed6rqJ+6vghzwYu7vih9GueIh9j2IoHAjUvJQ/johleHhvGhZchUXR:E1oEFlt6vghzwYu7vih9GueIh9j2IoHb
Malware Config
Extracted
blihanstealer
pomdfghrt
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user_agent
Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Trident/4.0; CIBA; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022)
Signatures
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BlihanStealer
Blihan is a stealer written in C++.
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Blihanstealer family
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Deletes itself 1 IoCs
pid Process 2940 microsofthelp.exe -
Executes dropped EXE 1 IoCs
pid Process 2940 microsofthelp.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-925314154-1797147466-1467878628-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" 2230604899758d0f4fe642806176b0b9bca6f740a5736cee8e7b91a7b8d62fef.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\microsofthelp.exe 2230604899758d0f4fe642806176b0b9bca6f740a5736cee8e7b91a7b8d62fef.exe File created C:\Windows\HidePlugin.dll microsofthelp.exe -
System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2230604899758d0f4fe642806176b0b9bca6f740a5736cee8e7b91a7b8d62fef.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language microsofthelp.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4732 wrote to memory of 2940 4732 2230604899758d0f4fe642806176b0b9bca6f740a5736cee8e7b91a7b8d62fef.exe 84 PID 4732 wrote to memory of 2940 4732 2230604899758d0f4fe642806176b0b9bca6f740a5736cee8e7b91a7b8d62fef.exe 84 PID 4732 wrote to memory of 2940 4732 2230604899758d0f4fe642806176b0b9bca6f740a5736cee8e7b91a7b8d62fef.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\2230604899758d0f4fe642806176b0b9bca6f740a5736cee8e7b91a7b8d62fef.exe"C:\Users\Admin\AppData\Local\Temp\2230604899758d0f4fe642806176b0b9bca6f740a5736cee8e7b91a7b8d62fef.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4732 -
C:\Windows\microsofthelp.exe"C:\Windows\microsofthelp.exe"2⤵
- Deletes itself
- Executes dropped EXE
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2940
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
52KB
MD5ecc45f9e71c3430d1481bea13ad44f84
SHA1dc2ce8c12b6c43656b359fd6e1cb27b7d0ad85f7
SHA2569af9bca0be1ae44e01974fe7a3ab3d832e9de3a0efe34c3d25e50ca342107409
SHA512b3667aa5eec11e528f78ff9b1b9190ef7bab79652c9f88dbb140ce37f204bf9d900d46286e351483f747709c3b86fbc564a103da41358a521d6f9d90a5b25683