blihanstealer | 5492bb327caac642b61d6c633fe7fcb2800370a6896d54efa5bb8dec3e3cee21

Analysis

max time kernel
149s
max time network
148s
platform
windows11-21h2_x64
resource
win11-20260513-en
resource tags

arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
06/06/2026, 05:07

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General

Target
2026-06-06_658d2d1d1eaa9bb995c96ef13f351497_elex_qilin.exe
Size 98KB
Sample260606-fsf4fabs3q
SHA256 5492bb327caac642b61d6c633fe7fcb2800370a6896d54efa5bb8dec3e3cee21
MD5 658d2d1d1eaa9bb995c96ef13f351497
SHA1 2ae6227e89799fd476ae5290829adeabb484f60b
SHA512 0efcce2e6ecfaeb477f5fcd2cd6754d042d4612df4e8651c0b7ef4ac1340db6b75f0646adaee79163347305ed38a243a00d9230b7dc9e1ba0c37b345d6625a2a
SSDEEP 3072:E1oEFlt6vghzwYu7vih9GueIh9j2IoHAjU+EmkcU+h+hhjhkhMh8h4qHKh+hHhDS:E
TLSH
T10FA3B34B4E66CDDBD804103B9BEAA25C82D3FC451CDCF35957EEC80674C2918C99E997
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/2444-0-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/files/0x0014000000025b53-4.dat	INDICATOR_EXE_Packed_MPress
behavioral2/memory/2444-6-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/1076-9-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/2284-10-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress

Deletes itself 1 IoCs

pid	Process
2284	microsofthelp.exe

Executes dropped EXE 2 IoCs

pid	Process
2284	microsofthelp.exe
1076	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-1-5-21-2746394149-3500112804-1243524366-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	2026-06-06_658d2d1d1eaa9bb995c96ef13f351497_elex_qilin.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	2026-06-06_658d2d1d1eaa9bb995c96ef13f351497_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	2026-06-06_658d2d1d1eaa9bb995c96ef13f351497_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 2444 wrote to memory of 2284	2444	2026-06-06_658d2d1d1eaa9bb995c96ef13f351497_elex_qilin.exe	79

C:\Users\Admin\AppData\Local\Temp\2026-06-06_658d2d1d1eaa9bb995c96ef13f351497_elex_qilin.exe
"C:\Users\Admin\AppData\Local\Temp\2026-06-06_658d2d1d1eaa9bb995c96ef13f351497_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:2444
- 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:2284

C:\Windows\microsofthelp.exe
C:\Windows\microsofthelp.exe
1⤵
- Executes dropped EXE
PID:1076

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 8eb5b084e260d733855e4367ddc51b7edf9105c1168cca9b374db888a8f79a34
MD5 051a9973a685a517631a2b10a3acb9de
SHA1 fe76f409111c8d69f7c6ed794f0ed779fdaebcbd
SHA512 9a8f7d6ee9918082ccfcbbc4f53cfb4c72aeb64137aa6a501556a63063371ac28b5bd3b031a8123638f9096b5c2960fb8f5764a353969a11005bcf4ceeab80e6
SSDEEP 3072:E1oEFlt6vghzwYu7vih9GueIh9j2IoHAjU+EmkcU+h+hhjhkhMh8h4qHKh+hHhDv:E
TLSH
T1BCA3C34B4E66CDDBD804103B9BEAA25C82E3FC451CDCF35957EEC80674C2918C99E997
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1076-9-0x0000000000400000-0x000000000040E000-memory.dmp

Download

memory/2284-10-0x0000000000400000-0x000000000040E000-memory.dmp

Download

memory/2444-0-0x0000000000400000-0x000000000040E000-memory.dmp

Download

memory/2444-6-0x0000000000400000-0x000000000040E000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads