blihanstealer | 6329bd5d904df4242239a89e2d41c2c5adbbb08ccd9e27c659a01274388ee0dd

Analysis

max time kernel
149s
max time network
94s
platform
windows11-21h2_x64
resource
win11-20260130-en
resource tags

arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
17/04/2026, 16:17

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General

Target
2026-04-17_8908e32af56892456614d3d19243bc37_elex_qilin.exe
Size 97KB
Sample260417-tre2msfw3x
SHA256 6329bd5d904df4242239a89e2d41c2c5adbbb08ccd9e27c659a01274388ee0dd
MD5 8908e32af56892456614d3d19243bc37
SHA1 faffeaed92276d522ee7b0076e40262365b3dfed
SHA512 0a8cf8921237915ecdfe672a37ff31b1c96f14f015a8ea57fec914be802f8184d77e931c84736bc36268ad1d3da61f7cd0f7df61edbffcf3f3c7d205c84b3849
SSDEEP 3072:E1oEFlt6vghzwYu7vih9GueIh9j2IoHAcBHUIF2kvEHrH1hyhuhrh1hKh2h7hWhq:E6
TLSH
T1F9A3B34B4E71CDDBE810143EABAAA21C86D3FC541CDCF35A97DEC84670C291C899E967
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/4124-0-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/files/0x000c000000029ee3-3.dat	INDICATOR_EXE_Packed_MPress
behavioral2/memory/4124-6-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/5644-9-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/4808-10-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress

Deletes itself 1 IoCs

pid	Process
4808	microsofthelp.exe

Executes dropped EXE 2 IoCs

pid	Process
4808	microsofthelp.exe
5644	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-1-5-21-2397528088-2630719772-1129911217-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	2026-04-17_8908e32af56892456614d3d19243bc37_elex_qilin.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	2026-04-17_8908e32af56892456614d3d19243bc37_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	2026-04-17_8908e32af56892456614d3d19243bc37_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 4124 wrote to memory of 4808	4124	2026-04-17_8908e32af56892456614d3d19243bc37_elex_qilin.exe	79

C:\Users\Admin\AppData\Local\Temp\2026-04-17_8908e32af56892456614d3d19243bc37_elex_qilin.exe
"C:\Users\Admin\AppData\Local\Temp\2026-04-17_8908e32af56892456614d3d19243bc37_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:4124
- 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:4808

C:\Windows\microsofthelp.exe
C:\Windows\microsofthelp.exe
1⤵
- Executes dropped EXE
PID:5644

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 880d48b4c1e633c285063602c5e6bb3e2415b8c98f1673a3a0a396da4d7a2cde
MD5 45b203b51e25accfef709cd75d814715
SHA1 6013492d448eec5267aab6977532b6727a280753
SHA512 194fa29137c9beaa86f38bbb0d144446754468d66cc172d14291df5909ac5f3d02f1255e699b49eae9c7d126fcd454be2a83656b8c80eaf33cba7ff861a7603e
SSDEEP 3072:E1oEFlt6vghzwYu7vih9GueIh9j2IoHAcBHUIF2kvEHrH1hyhuhrh1hKh2h7hWh+:E6
TLSH
T11EA3B34B4E71CDDBE810143EABAAA25C86D3FC441CDCF35A97DEC84670C291C899E967
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/4124-0-0x0000000000400000-0x000000000040E000-memory.dmp

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memory/4124-6-0x0000000000400000-0x000000000040E000-memory.dmp

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memory/4808-10-0x0000000000400000-0x000000000040E000-memory.dmp

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memory/5644-9-0x0000000000400000-0x000000000040E000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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