Analysis
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max time kernel
149s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
26/02/2025, 21:34
Static task
static1
Behavioral task
behavioral1
Sample
32743f83afd0069e55e4f803c38697cbde900b856cbee3ae7596098af4452276.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
32743f83afd0069e55e4f803c38697cbde900b856cbee3ae7596098af4452276.exe
Resource
win10v2004-20250217-en
General
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Target
32743f83afd0069e55e4f803c38697cbde900b856cbee3ae7596098af4452276.exe
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Size
53KB
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MD5
a16aa8997c3c9e96b49e37894fce0807
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SHA1
b857d54982d6183715a9e50a9bf88867f9d9436f
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SHA256
32743f83afd0069e55e4f803c38697cbde900b856cbee3ae7596098af4452276
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SHA512
b04eae24d0b918152c8f61a3187d4af58a60ac483020449b41010dc687179ddc6ceddce9314bc756bd8fd779052c7385976a039fc434aac3ae5a4a4515b64ff9
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SSDEEP
1536:e6q10k0EFjed6rqJ+6vghzwYu7vih9GueIh9j2IoHAjUvJQ/johleHhvGhZchUX7:E1oEFlt6vghzwYu7vih9GueIh9j2IoHF
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 2088 microsofthelp.exe -
Executes dropped EXE 1 IoCs
pid Process 2088 microsofthelp.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" 32743f83afd0069e55e4f803c38697cbde900b856cbee3ae7596098af4452276.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\microsofthelp.exe 32743f83afd0069e55e4f803c38697cbde900b856cbee3ae7596098af4452276.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 32743f83afd0069e55e4f803c38697cbde900b856cbee3ae7596098af4452276.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 2340 wrote to memory of 2088 2340 32743f83afd0069e55e4f803c38697cbde900b856cbee3ae7596098af4452276.exe 30 PID 2340 wrote to memory of 2088 2340 32743f83afd0069e55e4f803c38697cbde900b856cbee3ae7596098af4452276.exe 30 PID 2340 wrote to memory of 2088 2340 32743f83afd0069e55e4f803c38697cbde900b856cbee3ae7596098af4452276.exe 30 PID 2340 wrote to memory of 2088 2340 32743f83afd0069e55e4f803c38697cbde900b856cbee3ae7596098af4452276.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\32743f83afd0069e55e4f803c38697cbde900b856cbee3ae7596098af4452276.exe"C:\Users\Admin\AppData\Local\Temp\32743f83afd0069e55e4f803c38697cbde900b856cbee3ae7596098af4452276.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2340 -
C:\Windows\microsofthelp.exe"C:\Windows\microsofthelp.exe"2⤵
- Deletes itself
- Executes dropped EXE
- Drops file in Windows directory
PID:2088
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
53KB
MD57a644ba1af8eb316d261bb8843c9d146
SHA1e01b94f956d5cb46b01abc3c5826a33ac332c346
SHA256c848347f3b98ddd885b05a5e836145f134e8d756af5eb4f571df4e6c18ec7b4b
SHA5123c9956d7a67800a66613e933c5e56ed1e227cd5df4b9c19314e054f37347ee72787e4704c3350da37c7c1c91737729e38e52cbe7b95849012424679da25c978a