Analysis
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max time kernel
149s -
max time network
146s -
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, 22:48
Static task
static1
Behavioral task
behavioral1
Sample
4d44d3bd207c6453e5800c9a81b871fdaf1d9134a6844208beb0e5691a72ea2c.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
4d44d3bd207c6453e5800c9a81b871fdaf1d9134a6844208beb0e5691a72ea2c.exe
Resource
win10v2004-20250217-en
General
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Target
4d44d3bd207c6453e5800c9a81b871fdaf1d9134a6844208beb0e5691a72ea2c.exe
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Size
43KB
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MD5
c9d63b574535d1a152ac8fff684d0873
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SHA1
8f2ec46434df436b94fea84263f05ee6a441c7d1
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SHA256
4d44d3bd207c6453e5800c9a81b871fdaf1d9134a6844208beb0e5691a72ea2c
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SHA512
aedcab74280078f05c8e6265627e3490b5c1357e7434e4f0a5114a00d9bae30b55563d66793683566f49b7e0239995f1bf965687d80b68d4cff5847258a024ea
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SSDEEP
768:ePyFZFASe0Ep0EpHZplRpqpd6rqxn4p6vghzwYu7vih9GueIh9j2IoHAjU+Eh6I7:e6q10k0EFjed6rqJ+6vghzwYu7vih9Gn
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 3768 microsofthelp.exe -
Executes dropped EXE 1 IoCs
pid Process 3768 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" 4d44d3bd207c6453e5800c9a81b871fdaf1d9134a6844208beb0e5691a72ea2c.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\microsofthelp.exe 4d44d3bd207c6453e5800c9a81b871fdaf1d9134a6844208beb0e5691a72ea2c.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 4d44d3bd207c6453e5800c9a81b871fdaf1d9134a6844208beb0e5691a72ea2c.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language microsofthelp.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 1332 wrote to memory of 3768 1332 4d44d3bd207c6453e5800c9a81b871fdaf1d9134a6844208beb0e5691a72ea2c.exe 85 PID 1332 wrote to memory of 3768 1332 4d44d3bd207c6453e5800c9a81b871fdaf1d9134a6844208beb0e5691a72ea2c.exe 85 PID 1332 wrote to memory of 3768 1332 4d44d3bd207c6453e5800c9a81b871fdaf1d9134a6844208beb0e5691a72ea2c.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\4d44d3bd207c6453e5800c9a81b871fdaf1d9134a6844208beb0e5691a72ea2c.exe"C:\Users\Admin\AppData\Local\Temp\4d44d3bd207c6453e5800c9a81b871fdaf1d9134a6844208beb0e5691a72ea2c.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1332 -
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:3768
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
43KB
MD5af552c8acc742a9905b4e8ae0c991ed8
SHA16ea12c2e8dbe4e2fa3025360e9a7db32aa832360
SHA256e71320a222786c9dee6dde9e3e80fe652ef516610062b13f18786f0cc190ef27
SHA5129e635baa0ea3f165493df15ca917871be057190c6219563227235fa02e96cee512e4f35b7da073875baceba682ebbdd979da2117e4e3255e346b6fc4f7db11be