blihanstealer | 2bea0a0bb24bbc5eca764e1b3c24390a6c753adb56e783ff85f4a432e8431d8a

Analysis

max time kernel
149s
max time network
95s
platform
windows11-21h2_x64
resource
win11-20260513-en
resource tags

arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
31/05/2026, 22:26

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General

Target
2026-05-31_37eddc3a3bc621c6caac7ac1d4d4ba04_elex_qilin.exe
Size 97KB
Sample260531-2cmryaby6p
SHA256 2bea0a0bb24bbc5eca764e1b3c24390a6c753adb56e783ff85f4a432e8431d8a
MD5 37eddc3a3bc621c6caac7ac1d4d4ba04
SHA1 c779039bd937a4379d8378b68eb651cd24ead622
SHA512 a4ac2c71b64a465d021bf754c0d4d23d046ac177f57a4f6515735f96468e2f252e919f0b080754d56fce0a0b8a05b1766b620ec8847eda233d90e63eaf35bd3e
SSDEEP 3072:E1oEFlt6vghzwYu7vih9GueIh9j2IoHAjU+EmkcU+h+hhjhkhMh8h4qHKh+hHhDO:E
TLSH
T135A3B24B4E66CDDBD804103B9BEAA26C82E3FC451CDCF35957EEC80674C2918C99E997
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

Custom signature

Detects executables built or packed with MPress PE compressor 5 IoCs

resource	yara_rule
behavioral2/memory/1436-0-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/files/0x002500000002b2a7-3.dat	INDICATOR_EXE_Packed_MPress
behavioral2/memory/1436-4-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/2704-8-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/2376-9-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress

Deletes itself 1 IoCs

pid	Process
2376	microsofthelp.exe

Executes dropped EXE 2 IoCs

pid	Process
2376	microsofthelp.exe
2704	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-1-5-21-2409539145-3342400454-2096821238-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	2026-05-31_37eddc3a3bc621c6caac7ac1d4d4ba04_elex_qilin.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	2026-05-31_37eddc3a3bc621c6caac7ac1d4d4ba04_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	2026-05-31_37eddc3a3bc621c6caac7ac1d4d4ba04_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 1436 wrote to memory of 2376	1436	2026-05-31_37eddc3a3bc621c6caac7ac1d4d4ba04_elex_qilin.exe	80

C:\Users\Admin\AppData\Local\Temp\2026-05-31_37eddc3a3bc621c6caac7ac1d4d4ba04_elex_qilin.exe
"C:\Users\Admin\AppData\Local\Temp\2026-05-31_37eddc3a3bc621c6caac7ac1d4d4ba04_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:1436
- 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:2376

C:\Windows\microsofthelp.exe
C:\Windows\microsofthelp.exe
1⤵
- Executes dropped EXE
PID:2704

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 97KB
SHA256 f6bc36cdf4c8a564694bd60b4e204d7ab22d3c83dc476de005b68afb51605f19
MD5 b1337b136d47e34c3497234b55ea84ab
SHA1 236952a8e15d0b2408d0dfb79f7e25d628e95185
SHA512 55baa483ac9431c33e061f17be9204c4eb20875612d75dd6dff863ca8eead075f00a8c258fd1997f37f5ed9f8d3f8fc1be43ae5dd1776aba146110b7b2600166
SSDEEP 3072:E1oEFlt6vghzwYu7vih9GueIh9j2IoHAjU+EmkcU+h+hhjhkhMh8h4qHKh+hHhDt:E
TLSH
T105A3B24B4E66CDDBD804103B9BEAA25C82E3FC452CDCF35957EEC80674C2918C99E997
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

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

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memory/1436-4-0x0000000000400000-0x000000000040E000-memory.dmp

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memory/2376-9-0x0000000000400000-0x000000000040E000-memory.dmp

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memory/2704-8-0x0000000000400000-0x000000000040E000-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