blihanstealer | 3f8ab1fd05600b50e4cc59196d73b85ff957ecf88c9a0516c5140cfcd63388c3

Analysis

max time kernel
149s
max time network
146s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260709-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
19/08/2026, 20:27

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General

Target
2026-08-19_2d99f94ec430554ac8709c671c030611_elex_qilin.exe
Size 97KB
Sample260819-y8tzcahn4x
SHA256 3f8ab1fd05600b50e4cc59196d73b85ff957ecf88c9a0516c5140cfcd63388c3
MD5 2d99f94ec430554ac8709c671c030611
SHA1 4cf7912daa55f310a31327356435dc3088aa56f6
SHA512 91be9d41702f607e58304f80470cc8920e9c2dd110bffe259b83d0133a1b5a56bce4bb9191d005bbcd8eea75817cb368ba20063495c2123954baca1f697654d0
SSDEEP 3072:E1oEFlt6vghzwYu7vih9GueIh9j2IoHAjU+EmkcU+h+hhjhkhMh8h4qHKh+hHhDG:E
TLSH
T173A3C34B4E66CDDBD804103B9BEAB22C82E3FC451CDCF35957EEC80664C2918C99E997
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
behavioral2/memory/1388-0-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/files/0x000a000000011390-4.dat	INDICATOR_EXE_Packed_MPress
behavioral2/memory/1388-7-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/3508-9-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/4448-10-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress

Deletes itself 1 IoCs

pid	Process
4448	microsofthelp.exe

Executes dropped EXE 2 IoCs

pid	Process
4448	microsofthelp.exe
3508	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-1-5-21-1738198120-2966725515-3980530802-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	2026-08-19_2d99f94ec430554ac8709c671c030611_elex_qilin.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	2026-08-19_2d99f94ec430554ac8709c671c030611_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	microsofthelp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2026-08-19_2d99f94ec430554ac8709c671c030611_elex_qilin.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 1388 wrote to memory of 4448	1388	2026-08-19_2d99f94ec430554ac8709c671c030611_elex_qilin.exe	88

C:\Users\Admin\AppData\Local\Temp\2026-08-19_2d99f94ec430554ac8709c671c030611_elex_qilin.exe
"C:\Users\Admin\AppData\Local\Temp\2026-08-19_2d99f94ec430554ac8709c671c030611_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:1388
- 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:4448

C:\Windows\microsofthelp.exe
C:\Windows\microsofthelp.exe
1⤵
- Executes dropped EXE
PID:3508

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 98KB
SHA256 b5d2a3057e071e96c6af5e4abdb5fa5e4ecafcfa638b4730bcce2c40e26f708d
MD5 0e00187aa3a70657d449c73d1937c6e8
SHA1 ba464d030471c5650ba2522d609329e6ab9ced88
SHA512 67de730229e53215159d66623ab1cb2cc7582dbb7c3c2e504a51c721fc37a5570d4d03a28680ad6a4775454e03b7b05d6e0acad3e3e9479b8a3f852119828b3b
SSDEEP 3072:E1oEFlt6vghzwYu7vih9GueIh9j2IoHAjU+EmkcU+h+hhjhkhMh8h4qHKh+hHhDd:E
TLSH
T1DFA3C34B4E66CDDBD804103B9BEAB22C82E3FC451DDCF35957EEC80664C2918C99E997
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1388-0-0x0000000000400000-0x000000000040E000-memory.dmp

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memory/1388-7-0x0000000000400000-0x000000000040E000-memory.dmp

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memory/3508-9-0x0000000000400000-0x000000000040E000-memory.dmp

Download

memory/4448-10-0x0000000000400000-0x000000000040E000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads