blihanstealer | d9ecab05aaf8f11c27f3e1dffe3ec7200949d5818fe66eb87cabf9bb1ba5d880

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
17/05/2026, 11:20

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General

Target
2026-05-17_c64793b8af0086f7c8de4951e73743fa_elex_qilin.exe
Size 97KB
Sample260517-nffadabv2l
SHA256 d9ecab05aaf8f11c27f3e1dffe3ec7200949d5818fe66eb87cabf9bb1ba5d880
MD5 c64793b8af0086f7c8de4951e73743fa
SHA1 155f8ae53691181be56de1d365683c9657de983d
SHA512 f9ccf332953b63d5adfb95bc8c4db79b156005fe4f39d27536f6ad8a5a50a4db04901e52c61be40c2aa0128490c0a3ad045eb5586d9f3a5c23ef62792f593503
SSDEEP 3072:E1oEFlt6vghzwYu7vih9GueIh9j2IoHAjU+EmkcU+h+hhjhkhMh8h4qHKh+hHhDe:E
TLSH
T1ECA3C24B4E66CDDBD804103BABEAA22C82E3FC451DDCF35557EEC80674C2918C99E997
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/5772-0-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/5772-5-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/files/0x0010000000028df4-3.dat	INDICATOR_EXE_Packed_MPress
behavioral2/memory/3544-9-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/1412-10-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress

Deletes itself 1 IoCs

pid	Process
1412	microsofthelp.exe

Executes dropped EXE 2 IoCs

pid	Process
1412	microsofthelp.exe
3544	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-1-5-21-226940941-599731907-2645636698-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	2026-05-17_c64793b8af0086f7c8de4951e73743fa_elex_qilin.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	2026-05-17_c64793b8af0086f7c8de4951e73743fa_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	2026-05-17_c64793b8af0086f7c8de4951e73743fa_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 5772 wrote to memory of 1412	5772	2026-05-17_c64793b8af0086f7c8de4951e73743fa_elex_qilin.exe	80

C:\Users\Admin\AppData\Local\Temp\2026-05-17_c64793b8af0086f7c8de4951e73743fa_elex_qilin.exe
"C:\Users\Admin\AppData\Local\Temp\2026-05-17_c64793b8af0086f7c8de4951e73743fa_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:5772
- 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:1412

C:\Windows\microsofthelp.exe
C:\Windows\microsofthelp.exe
1⤵
- Executes dropped EXE
PID:3544

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 f019d7b4d252af0122e2440d07d24d040af09ea2c294f2f4256bd71d28035dfd
MD5 1b846be8a1023be764ab79ebf88e7920
SHA1 16c4582954fa1e840948d7031d9da594c7e9ecaf
SHA512 b54472e6de76e6b951b5581e7f0a8bb5b5b78114ca94ca8d77de58f2e2c2c835826138ae72f6ec2e088c2066f2f028cf4023d9cbb9a111b126b2bc4f1ed97144
SSDEEP 3072:E1oEFlt6vghzwYu7vih9GueIh9j2IoHAjU+EmkcU+h+hhjhkhMh8h4qHKh+hHhDO:E
TLSH
T148A3C24B4E66CDDBD804103BABEAA22C82E3FC451DDCF35557EEC80674C2918C99E997
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1412-10-0x0000000000400000-0x000000000040E000-memory.dmp

Download

memory/3544-9-0x0000000000400000-0x000000000040E000-memory.dmp

Download

memory/5772-0-0x0000000000400000-0x000000000040E000-memory.dmp

Download

memory/5772-5-0x0000000000400000-0x000000000040E000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads