Analysis
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max time kernel
149s -
max time network
151s -
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, 05:12
Static task
static1
Behavioral task
behavioral1
Sample
c9b9b5d5eb72f81245ca5b8b0f8d5a876bbc260b82ad813d2084d975761de146.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
c9b9b5d5eb72f81245ca5b8b0f8d5a876bbc260b82ad813d2084d975761de146.exe
Resource
win10v2004-20250217-en
General
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Target
c9b9b5d5eb72f81245ca5b8b0f8d5a876bbc260b82ad813d2084d975761de146.exe
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Size
49KB
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MD5
20e271c8b0605aeee97947f06300119c
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SHA1
5ec396b926646051684a097e07c69def0e6adaa5
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SHA256
c9b9b5d5eb72f81245ca5b8b0f8d5a876bbc260b82ad813d2084d975761de146
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SHA512
fd0acf03d3548888231b4a7be59c7dbe9f3e15b423fe0e8e338afb2c7e27ae19abc6bf23f1f6aabfb576e6e23dd0bd343d53f6d1622d2f0e6cd6c3f4bcfb6219
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SSDEEP
1536:e6q10k0EFjed6rqJ+6vghzwYu7vih9GueIh9j2IoHAjUvJQ/johleHhvGhZchUXn:E1oEFlt6vghzwYu7vih9GueIh9j2IoH9
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 796 microsofthelp.exe -
Executes dropped EXE 1 IoCs
pid Process 796 microsofthelp.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1479699283-3000499823-2337359760-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" c9b9b5d5eb72f81245ca5b8b0f8d5a876bbc260b82ad813d2084d975761de146.exe -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\microsofthelp.exe c9b9b5d5eb72f81245ca5b8b0f8d5a876bbc260b82ad813d2084d975761de146.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 c9b9b5d5eb72f81245ca5b8b0f8d5a876bbc260b82ad813d2084d975761de146.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language microsofthelp.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 2728 wrote to memory of 796 2728 c9b9b5d5eb72f81245ca5b8b0f8d5a876bbc260b82ad813d2084d975761de146.exe 85 PID 2728 wrote to memory of 796 2728 c9b9b5d5eb72f81245ca5b8b0f8d5a876bbc260b82ad813d2084d975761de146.exe 85 PID 2728 wrote to memory of 796 2728 c9b9b5d5eb72f81245ca5b8b0f8d5a876bbc260b82ad813d2084d975761de146.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\c9b9b5d5eb72f81245ca5b8b0f8d5a876bbc260b82ad813d2084d975761de146.exe"C:\Users\Admin\AppData\Local\Temp\c9b9b5d5eb72f81245ca5b8b0f8d5a876bbc260b82ad813d2084d975761de146.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2728 -
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:796
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
49KB
MD50379da994f862a512efb7ec47c2ec3d2
SHA1d727f6108266066bbe904fd2a24d56a303032e63
SHA25638de23b5d2bef66e114002d5a3eede6f8c6155b4871ce11f5d9f5787aa251b99
SHA51201060d9c140316b9601eb10cd31d05ecb7dfaa91f84687c10ba6861382bc3c19ad4a7ce35318bef6f6ea96453c8b6407729906ef80fb888f166911249a0c9d75