blihanstealer | f945b0a5683bdc99eb9dd5d12159b094367daea591a417d6486a86f71acf5f0a

Analysis

max time kernel
119s
max time network
113s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
24/03/2025, 09:51

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General

Target

f945b0a5683bdc99eb9dd5d12159b094367daea591a417d6486a86f71acf5f0a.exe
Size

57KB
MD5

3a2a8bcac7e57aca8c5523b2bf785ce9
SHA1

b50bbb4e9d43282076d52f8616c78c6a180a594a
SHA256

f945b0a5683bdc99eb9dd5d12159b094367daea591a417d6486a86f71acf5f0a
SHA512

d90366a7d32cec5fa4c78d245c9e481f9b242a7dedef6b77ad160e3d19ac88abb12336151ad0ad489617dfff74ec3d480a96ac41376287d5c08ebefd7f19a22d
SSDEEP

1536:e6q10k0EFjed6rqJ+6vghzwYu7vih9GueIh9j2IoHAcBHUIF2kvEHrH1hyhuhrhw:E1oEFlt6vghzwYu7vih9GueIh9j2IoHx

Score

10^/10

blihanstealer discovery persistence stealer trojan

Malware Config

Extracted

Family

blihanstealer

Mutex

pomdfghrt

Attributes

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

BlihanStealer
Blihan is a stealer written in C++.
trojan stealer blihanstealer
Blihanstealer family
blihanstealer

Deletes itself 1 IoCs

pid	Process
1436	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
1436	microsofthelp.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-805952410-2104024357-1716932545-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	f945b0a5683bdc99eb9dd5d12159b094367daea591a417d6486a86f71acf5f0a.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	f945b0a5683bdc99eb9dd5d12159b094367daea591a417d6486a86f71acf5f0a.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.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	f945b0a5683bdc99eb9dd5d12159b094367daea591a417d6486a86f71acf5f0a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 320 wrote to memory of 1436	320	f945b0a5683bdc99eb9dd5d12159b094367daea591a417d6486a86f71acf5f0a.exe	87
PID 320 wrote to memory of 1436	320	f945b0a5683bdc99eb9dd5d12159b094367daea591a417d6486a86f71acf5f0a.exe	87
PID 320 wrote to memory of 1436	320	f945b0a5683bdc99eb9dd5d12159b094367daea591a417d6486a86f71acf5f0a.exe	87

C:\Users\Admin\AppData\Local\Temp\f945b0a5683bdc99eb9dd5d12159b094367daea591a417d6486a86f71acf5f0a.exe
"C:\Users\Admin\AppData\Local\Temp\f945b0a5683bdc99eb9dd5d12159b094367daea591a417d6486a86f71acf5f0a.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:320
- 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:1436

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Windows\microsofthelp.exe

Filesize
58KB

MD5
f368f17ef772543972f79ddb7357fe58

SHA1
52aaf9a51c88e2dd1b02d252b96234f418b56e17

SHA256
3ea20c2b313107251c7d9c3d9184361c7a65f28c5b6e69e1116a8c50666d4881

SHA512
b3091fb038f6e3d510b135508088097f40dfb938a1b58433b6f13e5e49dad445a161a05caaa534b2a762ba88b3649ab3a24e1d92182ad456c6531b8c7bb08738

Download Submit
memory/320-0-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/320-5-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/1436-7-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads