Resubmissions
27/02/2025, 02:02
250227-cggn2szzhs 10Analysis
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max time kernel
149s -
max time network
139s -
platform
windows10-2004_x64 -
resource
win10v2004-20250217-en -
resource tags
arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system -
submitted
27/02/2025, 02:02
Static task
static1
Behavioral task
behavioral1
Sample
8a2c8b93508214fd966156de51e052991d194f76c0897520b174ab4ca2eb2705.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
8a2c8b93508214fd966156de51e052991d194f76c0897520b174ab4ca2eb2705.exe
Resource
win10v2004-20250217-en
General
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Target
8a2c8b93508214fd966156de51e052991d194f76c0897520b174ab4ca2eb2705.exe
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Size
70KB
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MD5
029b1bb4714d40ce93425b21a4b86939
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SHA1
fe7799a74ac228cba062d3d857e395dbc2375de8
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SHA256
8a2c8b93508214fd966156de51e052991d194f76c0897520b174ab4ca2eb2705
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SHA512
e3a385e649e34db2a28e41136ba0f74a50ffb216e38d9ab5223e91096f1182473a6323e04eb7996a10fbc510c2e6c6eb18e0a775fd0a7c88d41ec6d71bfaa176
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SSDEEP
1536:e6q10k0EFjed6rqJ+6vghzwYu7vih9GueIh9j2IoHAcBHUIF2kvEHrH1hyhuhrhx:E1oEFlt6vghzwYu7vih9GueIh9j2IoHM
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 1848 microsofthelp.exe -
Executes dropped EXE 1 IoCs
pid Process 1848 microsofthelp.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2593460650-190333679-3676257533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" 8a2c8b93508214fd966156de51e052991d194f76c0897520b174ab4ca2eb2705.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\microsofthelp.exe 8a2c8b93508214fd966156de51e052991d194f76c0897520b174ab4ca2eb2705.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 8a2c8b93508214fd966156de51e052991d194f76c0897520b174ab4ca2eb2705.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language microsofthelp.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2500 wrote to memory of 1848 2500 8a2c8b93508214fd966156de51e052991d194f76c0897520b174ab4ca2eb2705.exe 87 PID 2500 wrote to memory of 1848 2500 8a2c8b93508214fd966156de51e052991d194f76c0897520b174ab4ca2eb2705.exe 87 PID 2500 wrote to memory of 1848 2500 8a2c8b93508214fd966156de51e052991d194f76c0897520b174ab4ca2eb2705.exe 87
Processes
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C:\Users\Admin\AppData\Local\Temp\8a2c8b93508214fd966156de51e052991d194f76c0897520b174ab4ca2eb2705.exe"C:\Users\Admin\AppData\Local\Temp\8a2c8b93508214fd966156de51e052991d194f76c0897520b174ab4ca2eb2705.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2500 -
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:1848
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
70KB
MD590747e0ac18a12a342ef42a5bd53e13a
SHA1f4d72ea7fecac722d8e6e675c0921326e72b3652
SHA256aa7e99c3f93266bd5c99baf381db538843b0be191de5f0c5ff94b195f6c95ce4
SHA5120eb7ad8b7092f6f0338ab051a12171c02f715d0c0a4f490aaf2fced1f23f71e66d78f22c03dbc18ab17b17827223af66213589f44181789fb20ac3ad6f1c77c0