Analysis
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max time kernel
149s -
max time network
143s -
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, 20:21
Static task
static1
Behavioral task
behavioral1
Sample
190a2e3947226ecf31204dbb57fb5103376e8e8dfcc52d04e8b36702f6fa9630.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
190a2e3947226ecf31204dbb57fb5103376e8e8dfcc52d04e8b36702f6fa9630.exe
Resource
win10v2004-20250217-en
General
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Target
190a2e3947226ecf31204dbb57fb5103376e8e8dfcc52d04e8b36702f6fa9630.exe
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Size
66KB
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MD5
b7ed0b61be5c5ea9d2fffeaae81154a2
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SHA1
631361fe08554268e99792e2ea0076f888d482b7
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SHA256
190a2e3947226ecf31204dbb57fb5103376e8e8dfcc52d04e8b36702f6fa9630
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SHA512
504c16bd7cc90000c65cdbe06a4f58fbda70a5b347fbcc36ea34cf65a510b5cc8007d1288a2b3b442425f135187c1a5e09b5eefda4339ffa4a2f3a00fea8ffa3
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SSDEEP
1536:e6q10k0EFjed6rqJ+6vghzwYu7vih9GueIh9j2IoHAcBHUIF2kvEHrH1hyhuhrhL:E1oEFlt6vghzwYu7vih9GueIh9j2IoH4
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 4840 microsofthelp.exe -
Executes dropped EXE 1 IoCs
pid Process 4840 microsofthelp.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1874072718-2205492803-118941907-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" 190a2e3947226ecf31204dbb57fb5103376e8e8dfcc52d04e8b36702f6fa9630.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\microsofthelp.exe 190a2e3947226ecf31204dbb57fb5103376e8e8dfcc52d04e8b36702f6fa9630.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 190a2e3947226ecf31204dbb57fb5103376e8e8dfcc52d04e8b36702f6fa9630.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language microsofthelp.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2532 wrote to memory of 4840 2532 190a2e3947226ecf31204dbb57fb5103376e8e8dfcc52d04e8b36702f6fa9630.exe 85 PID 2532 wrote to memory of 4840 2532 190a2e3947226ecf31204dbb57fb5103376e8e8dfcc52d04e8b36702f6fa9630.exe 85 PID 2532 wrote to memory of 4840 2532 190a2e3947226ecf31204dbb57fb5103376e8e8dfcc52d04e8b36702f6fa9630.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\190a2e3947226ecf31204dbb57fb5103376e8e8dfcc52d04e8b36702f6fa9630.exe"C:\Users\Admin\AppData\Local\Temp\190a2e3947226ecf31204dbb57fb5103376e8e8dfcc52d04e8b36702f6fa9630.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2532 -
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:4840
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
67KB
MD57243cd8d76f12745a9f733147be0d208
SHA1997e37a1c6c442256ad4d6e2fce402115f5a9cf7
SHA2561696a58b4086521d1b9f1104c6e7591f79458bb6816fa55e4bb47b389ebac1c0
SHA512f9d15eb9adf8de18ff60215555f948cc2cce613a01ed2e8dd58397c9023121021f7a151ad6bcfd74e953fccbe07bb75bbb92d6dc81eb89ecd79a2371605bf4c4