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
27/02/2025, 03:18
Static task
static1
Behavioral task
behavioral1
Sample
a513f92aa2a10462508203646892b917be8673033d778a98ea3d63dcf793cb31.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
a513f92aa2a10462508203646892b917be8673033d778a98ea3d63dcf793cb31.exe
Resource
win10v2004-20250217-en
General
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Target
a513f92aa2a10462508203646892b917be8673033d778a98ea3d63dcf793cb31.exe
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Size
45KB
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MD5
c10e3cb8e86fb2e00b02b97044dd08b4
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SHA1
0ade9fc0206107d1594285552f1a521182d0d4bd
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SHA256
a513f92aa2a10462508203646892b917be8673033d778a98ea3d63dcf793cb31
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SHA512
27ea1ed8554c54c56f58a17d21a0d44f11bdb8106bbfeef734400758498e6b543682d10ef6f75c9e0e1bdb42553d97030b43512a2f9ea222cc9e376b4a75a6a6
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SSDEEP
768:ePyFZFASe0Ep0EpHZplRpqpd6rqxn4p6vghzwYu7vih9GueIh9j2IoHAjU+Eh6Ij:e6q10k0EFjed6rqJ+6vghzwYu7vih9G3
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 3644 microsofthelp.exe -
Executes dropped EXE 1 IoCs
pid Process 3644 microsofthelp.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1479699283-3000499823-2337359760-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" a513f92aa2a10462508203646892b917be8673033d778a98ea3d63dcf793cb31.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\microsofthelp.exe a513f92aa2a10462508203646892b917be8673033d778a98ea3d63dcf793cb31.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 a513f92aa2a10462508203646892b917be8673033d778a98ea3d63dcf793cb31.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language microsofthelp.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2260 wrote to memory of 3644 2260 a513f92aa2a10462508203646892b917be8673033d778a98ea3d63dcf793cb31.exe 85 PID 2260 wrote to memory of 3644 2260 a513f92aa2a10462508203646892b917be8673033d778a98ea3d63dcf793cb31.exe 85 PID 2260 wrote to memory of 3644 2260 a513f92aa2a10462508203646892b917be8673033d778a98ea3d63dcf793cb31.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\a513f92aa2a10462508203646892b917be8673033d778a98ea3d63dcf793cb31.exe"C:\Users\Admin\AppData\Local\Temp\a513f92aa2a10462508203646892b917be8673033d778a98ea3d63dcf793cb31.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2260 -
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:3644
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
45KB
MD5aefecbdc540c7e0bf5dcead2ea8fedca
SHA10a26e0b719c26ae876825e51321182a24806cf71
SHA25684bc10b95862e4629328431b24bab4afc88d408d61ed296f03045074eb1a33e6
SHA5129c7c77004a0f32173b00934ed2ecd9ef25a304c02030e7855bdb232cfc17bc502b4370939f9e690c3d41f67727f91be9b1915bb7c42f94456dd7fa1118284cac