Analysis
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max time kernel
149s -
max time network
16s -
platform
windows7_x64 -
resource
win7-20240729-en -
resource tags
arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system -
submitted
27/02/2025, 03:16
Static task
static1
Behavioral task
behavioral1
Sample
a4da03fd32a94035caf5b4b2a3f5b122f318f6d8636b3e902832be1fc773ffb9.exe
Resource
win7-20240729-en
Behavioral task
behavioral2
Sample
a4da03fd32a94035caf5b4b2a3f5b122f318f6d8636b3e902832be1fc773ffb9.exe
Resource
win10v2004-20250217-en
General
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Target
a4da03fd32a94035caf5b4b2a3f5b122f318f6d8636b3e902832be1fc773ffb9.exe
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Size
43KB
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MD5
7b8080d40933a00023b68eab02b034fb
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SHA1
6f92dfb64d0b222bc6834b7860682429ab73182d
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SHA256
a4da03fd32a94035caf5b4b2a3f5b122f318f6d8636b3e902832be1fc773ffb9
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SHA512
319b21f27c4e799ad7972bc0b7404eb3fe6bb4fa4ea3eb64df4652eb472c4f47b1a2911115bb21e516d34c9e4e7686ba765ead57c353f663ffc79b4a5961a4fd
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SSDEEP
768:ePyFZFASe0Ep0EpHZplRpqpd6rqxn4p6vghzwYu7vih9GueIh9j2IoHAjU+Eh6IY:e6q10k0EFjed6rqJ+6vghzwYu7vih9GE
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 2772 microsofthelp.exe -
Executes dropped EXE 1 IoCs
pid Process 2772 microsofthelp.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" a4da03fd32a94035caf5b4b2a3f5b122f318f6d8636b3e902832be1fc773ffb9.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\microsofthelp.exe a4da03fd32a94035caf5b4b2a3f5b122f318f6d8636b3e902832be1fc773ffb9.exe File created C:\Windows\HidePlugin.dll microsofthelp.exe -
System Location Discovery: System Language Discovery 1 TTPs 1 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 a4da03fd32a94035caf5b4b2a3f5b122f318f6d8636b3e902832be1fc773ffb9.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2668 wrote to memory of 2772 2668 a4da03fd32a94035caf5b4b2a3f5b122f318f6d8636b3e902832be1fc773ffb9.exe 30 PID 2668 wrote to memory of 2772 2668 a4da03fd32a94035caf5b4b2a3f5b122f318f6d8636b3e902832be1fc773ffb9.exe 30 PID 2668 wrote to memory of 2772 2668 a4da03fd32a94035caf5b4b2a3f5b122f318f6d8636b3e902832be1fc773ffb9.exe 30 PID 2668 wrote to memory of 2772 2668 a4da03fd32a94035caf5b4b2a3f5b122f318f6d8636b3e902832be1fc773ffb9.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\a4da03fd32a94035caf5b4b2a3f5b122f318f6d8636b3e902832be1fc773ffb9.exe"C:\Users\Admin\AppData\Local\Temp\a4da03fd32a94035caf5b4b2a3f5b122f318f6d8636b3e902832be1fc773ffb9.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2668 -
C:\Windows\microsofthelp.exe"C:\Windows\microsofthelp.exe"2⤵
- Deletes itself
- Executes dropped EXE
- Drops file in Windows directory
PID:2772
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
44KB
MD5d4a054f69ebc443912767bac39b14c24
SHA1ff1bf142bcb30e272c50d5b4652b54bda85d8f12
SHA2565c5cad728b7448b7ebacf9822bd986228cee43d9aa8a969a38917aebe99155b5
SHA5127facf9f5a43d0fffde82dd7ce0a4e1f2fcfe49b9bffdba29ea35f8f6e7ff05f4dd0b71e3923f95813afa8e9cb007ef6df7b703059cf8587d08ec917d0ec32f9b