blihanstealer | 3f77db148d1e41782f2db7c54b4efa0206a31549f229454bc0216436d83607f2

Analysis

max time kernel
149s
max time network
119s
platform
windows10-2004_x64
resource
win10v2004-20260130-en
resource tags

arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
04/05/2026, 03:33

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General

Target
2026-05-04_3bcb4a3db671c91dc7466e46410c6607_elex_qilin.exe
Size 92KB
Sample260504-d4phvafv5k
SHA256 3f77db148d1e41782f2db7c54b4efa0206a31549f229454bc0216436d83607f2
MD5 3bcb4a3db671c91dc7466e46410c6607
SHA1 c123facb6ca35bb55aa5d54c1a6533b0c4d523fe
SHA512 116b87ed8dcfae873f8bee103d167280f0af0cd901e48432141cb6f082a2b7e6e3042e22724c07af9ebe95ca8f2448ed73afe21fdfbcbd5aea34cf98b763ce53
SSDEEP 1536:e6q10k0EFjed6rqJ+6vghzwYu7vih9GueIh9j2IoHAjU+EmkcU+h+hhjhkhMh8hr:E1oEFlt6vghzwYu7vih9GueIh9j2IoH0
TLSH
T13993D34B4E61CDDBD804103BABEAA26C86E3FC451DDCF35657EEC80670C2918C99E997
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery blihanstealer 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

Family: BlihanStealer
Blihan is a stealer written in C++.
trojan stealer blihanstealer

Detects executables built or packed with MPress PE compressor 5 IoCs

resource	yara_rule
behavioral1/memory/5424-0-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x000900000001e6ca-3.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/5424-5-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/3680-9-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/5860-10-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress

Deletes itself 1 IoCs

pid	Process
5860	microsofthelp.exe

Executes dropped EXE 2 IoCs

pid	Process
5860	microsofthelp.exe
3680	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-1-5-21-721190819-434563495-2007910846-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	2026-05-04_3bcb4a3db671c91dc7466e46410c6607_elex_qilin.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	2026-05-04_3bcb4a3db671c91dc7466e46410c6607_elex_qilin.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	2026-05-04_3bcb4a3db671c91dc7466e46410c6607_elex_qilin.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 5424 wrote to memory of 5860	5424	2026-05-04_3bcb4a3db671c91dc7466e46410c6607_elex_qilin.exe	86

C:\Users\Admin\AppData\Local\Temp\2026-05-04_3bcb4a3db671c91dc7466e46410c6607_elex_qilin.exe
"C:\Users\Admin\AppData\Local\Temp\2026-05-04_3bcb4a3db671c91dc7466e46410c6607_elex_qilin.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5424
- 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:5860

C:\Windows\microsofthelp.exe
C:\Windows\microsofthelp.exe
1⤵
- Executes dropped EXE
PID:3680

Network

MITRE ATT&CK Enterprise v16

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

microsofthelp.exe

Path C:\Windows\microsofthelp.exe
Size 92KB
SHA256 2f8f6378a2a57b6c52f6e6bca5e863e284ae2f462281d7afd9348bcf24369c32
MD5 46bf69786b5e43611dd8e85b0817a77c
SHA1 b7aac1724ccd821c20e1c2eea68471ce34cdefa1
SHA512 305288ca5001e453255c5d1418ca1dcc8f4bd68341c95556d0790e343303529675a45d45f88bf105fe656f35ab810fa298b358f2cab8b3be74f06bd055b228fb
SSDEEP 1536:e6q10k0EFjed6rqJ+6vghzwYu7vih9GueIh9j2IoHAjU+EmkcU+h+hhjhkhMh8hy:E1oEFlt6vghzwYu7vih9GueIh9j2IoH9
TLSH
T15A93D34B4E61CDDBD804103BABEAA26C86E3FC451DDCF35557EEC80674C2918C89E997
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/3680-9-0x0000000000400000-0x000000000040E000-memory.dmp

Download

memory/5424-0-0x0000000000400000-0x000000000040E000-memory.dmp

Download

memory/5424-5-0x0000000000400000-0x000000000040E000-memory.dmp

Download

memory/5860-10-0x0000000000400000-0x000000000040E000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads