blihanstealer | 171e03ee551c8d354140720ae36b9ddea7d6ef7d30edeffe569e0dadc610d1d1

Analysis

max time kernel
149s
max time network
139s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
25/03/2025, 08:54

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General

Target

171e03ee551c8d354140720ae36b9ddea7d6ef7d30edeffe569e0dadc610d1d1.exe
Size

55KB
MD5

52a2bb69f2c4000b9fb73b9b201d4ce0
SHA1

a4481c96ac27c3e3585094dcc1037b1dce28bf16
SHA256

171e03ee551c8d354140720ae36b9ddea7d6ef7d30edeffe569e0dadc610d1d1
SHA512

c6b4e790502192348d35d1de6c851fa3bbc60ad244ccc2554b923124ba381f024e217eba792b163d2598479515960402674fb444828d68db2f5cf7f7ed0acfae
SSDEEP

1536:e6q10k0EFjed6rqJ+6vghzwYu7vih9GueIh9j2IoHAcBHUIF2kvEHrH1hyhuhrh7:E1oEFlt6vghzwYu7vih9GueIh9j2IoHo

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
5000	microsofthelp.exe

Executes dropped EXE 1 IoCs

pid	Process
5000	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-1-5-21-308834014-1004923324-1191300197-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	171e03ee551c8d354140720ae36b9ddea7d6ef7d30edeffe569e0dadc610d1d1.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	171e03ee551c8d354140720ae36b9ddea7d6ef7d30edeffe569e0dadc610d1d1.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	171e03ee551c8d354140720ae36b9ddea7d6ef7d30edeffe569e0dadc610d1d1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5972 wrote to memory of 5000	5972	171e03ee551c8d354140720ae36b9ddea7d6ef7d30edeffe569e0dadc610d1d1.exe	86
PID 5972 wrote to memory of 5000	5972	171e03ee551c8d354140720ae36b9ddea7d6ef7d30edeffe569e0dadc610d1d1.exe	86
PID 5972 wrote to memory of 5000	5972	171e03ee551c8d354140720ae36b9ddea7d6ef7d30edeffe569e0dadc610d1d1.exe	86

C:\Users\Admin\AppData\Local\Temp\171e03ee551c8d354140720ae36b9ddea7d6ef7d30edeffe569e0dadc610d1d1.exe
"C:\Users\Admin\AppData\Local\Temp\171e03ee551c8d354140720ae36b9ddea7d6ef7d30edeffe569e0dadc610d1d1.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5972
- 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:5000

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
56KB

MD5
488e3777fde8ca4d90826de06648da1f

SHA1
cc9b391712de026b1e69f75178ea513f2ea25038

SHA256
e9208d7af69a255a6f1ad334311a887e432d360e4a9f2a57a267fad4add5b6ff

SHA512
5935e5f03885a889613774d0340b9cb2cd7c6daf7af8b9efbe1171dd4c9d9566dbf417a1357881a20ee647021b1b3a1ed975efa303481f6c0e36bc4cccf7b0f3

Download Submit
memory/5000-7-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/5972-0-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download
memory/5972-5-0x0000000000400000-0x000000000040E000-memory.dmp

Filesize
56KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads