Analysis
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max time kernel
149s -
max time network
137s -
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, 06:24
Static task
static1
Behavioral task
behavioral1
Sample
dd5e5ff861d99c02aa01beba7ec09da0bf938ce9244bfd94c0239639d99971e3.exe
Resource
win7-20241023-en
Behavioral task
behavioral2
Sample
dd5e5ff861d99c02aa01beba7ec09da0bf938ce9244bfd94c0239639d99971e3.exe
Resource
win10v2004-20250217-en
General
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Target
dd5e5ff861d99c02aa01beba7ec09da0bf938ce9244bfd94c0239639d99971e3.exe
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Size
48KB
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MD5
1a3239597049d666e9c95d1127f0ffec
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SHA1
d5ee66f72d9b3889bdd52da420ab6900c2e0e345
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SHA256
dd5e5ff861d99c02aa01beba7ec09da0bf938ce9244bfd94c0239639d99971e3
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SHA512
9c797abf639ffac6b3b203e24cb071fbf5c09508d1b793adf787cb6acf95e657c4ad8ef577bb4504808b21f3b95904b36632db55793be1f4aa2ab6e3018b5984
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SSDEEP
1536:e6q10k0EFjed6rqJ+6vghzwYu7vih9GueIh9j2IoHAjU+EmkcU+h+hhjhkhMh8hH:E1oEFlt6vghzwYu7vih9GueIh9j2IoHk
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 4664 microsofthelp.exe -
Executes dropped EXE 1 IoCs
pid Process 4664 microsofthelp.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1161330783-2912525651-1278508834-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" dd5e5ff861d99c02aa01beba7ec09da0bf938ce9244bfd94c0239639d99971e3.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\microsofthelp.exe dd5e5ff861d99c02aa01beba7ec09da0bf938ce9244bfd94c0239639d99971e3.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 dd5e5ff861d99c02aa01beba7ec09da0bf938ce9244bfd94c0239639d99971e3.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language microsofthelp.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3036 wrote to memory of 4664 3036 dd5e5ff861d99c02aa01beba7ec09da0bf938ce9244bfd94c0239639d99971e3.exe 84 PID 3036 wrote to memory of 4664 3036 dd5e5ff861d99c02aa01beba7ec09da0bf938ce9244bfd94c0239639d99971e3.exe 84 PID 3036 wrote to memory of 4664 3036 dd5e5ff861d99c02aa01beba7ec09da0bf938ce9244bfd94c0239639d99971e3.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\dd5e5ff861d99c02aa01beba7ec09da0bf938ce9244bfd94c0239639d99971e3.exe"C:\Users\Admin\AppData\Local\Temp\dd5e5ff861d99c02aa01beba7ec09da0bf938ce9244bfd94c0239639d99971e3.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3036 -
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:4664
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
48KB
MD560caf90b4724b32ff16f7b3bdacae450
SHA1823bf453703779aa68f71b7e0f7378c76925839f
SHA2566970419956bba3c5686eb91dda517548a92de217b00ca06e90f4eeb44b103298
SHA512ff4126004a2b0dd1328b984f12133ad811f61c8f909cb04c4b15389247666f880d1104a685bdabc10d80eaf070412793a5b48785918913aeb50cc01ff00be2fc