blihanstealer | a15014185e855050eae42b84d22112090bf28634418af1fbe4ea172c8c2bc6b2

Analysis

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

arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
02/06/2026, 04:04

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General

Target
2026-06-02_9deae0518d95fa9e538d50857a4f2d55_elex_qilin.exe
Size 98KB
Sample260602-enc1jsdw2w
SHA256 a15014185e855050eae42b84d22112090bf28634418af1fbe4ea172c8c2bc6b2
MD5 9deae0518d95fa9e538d50857a4f2d55
SHA1 d4ed7d0dd8afbe425042309190f70665aa2bb3fc
SHA512 3addc3b8f37ad9046b6991dcb2a95eacb26f606836b818950da5a13bd49459b4268524bdcee7a153f63b10842c056339a5a3d4cad9b497c9c6ee98ed3b64600e
SSDEEP 3072:E1oEFlt6vghzwYu7vih9GueIh9j2IoHAjU+EmkcU+h+hhjhkhMh8h4qHKh+hHhDD:E
TLSH
T13EA3C24B4E66CDDBD804103B9BEAA22C82E3FD451CDCF35557EEC80674C2918C99E997
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/2728-0-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/2728-6-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/files/0x001e00000002b2bc-5.dat	INDICATOR_EXE_Packed_MPress
behavioral2/memory/1268-8-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/4008-9-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress

Deletes itself 1 IoCs

pid	Process
4008	microsofthelp.exe

Executes dropped EXE 2 IoCs

pid	Process
4008	microsofthelp.exe
1268	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-1-5-21-1636999435-3883760687-346127294-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	2026-06-02_9deae0518d95fa9e538d50857a4f2d55_elex_qilin.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	2026-06-02_9deae0518d95fa9e538d50857a4f2d55_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	2026-06-02_9deae0518d95fa9e538d50857a4f2d55_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 2728 wrote to memory of 4008	2728	2026-06-02_9deae0518d95fa9e538d50857a4f2d55_elex_qilin.exe	80

C:\Users\Admin\AppData\Local\Temp\2026-06-02_9deae0518d95fa9e538d50857a4f2d55_elex_qilin.exe
"C:\Users\Admin\AppData\Local\Temp\2026-06-02_9deae0518d95fa9e538d50857a4f2d55_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:2728
- 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:4008

C:\Windows\microsofthelp.exe
C:\Windows\microsofthelp.exe
1⤵
- Executes dropped EXE
PID:1268

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 c0f08fd9a670ce54f1c7b8c893f0b99592190aadd239d6d213ad84db30818b51
MD5 bc88873291d1696cbd399947edf391c9
SHA1 cfbfeb4e9bbfb8f0f6cfb53e3084edcb87012209
SHA512 ea6d184efc8e435fdd7b085927fc90bb298778d34c369bd31ecc8bc36eb28f87a706c47bd15fa64dc1dc664b93ccf006c4ac2d7324b29a3bd2ae51385d7a51fc
SSDEEP 3072:E1oEFlt6vghzwYu7vih9GueIh9j2IoHAjU+EmkcU+h+hhjhkhMh8h4qHKh+hHhDg:E
TLSH
T1CFA3C24B4E66CEDBD804103B9BEAA22C82E3FD451CDCF35557EEC80664C2918C99E997
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1268-8-0x0000000000400000-0x000000000040E000-memory.dmp

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memory/2728-0-0x0000000000400000-0x000000000040E000-memory.dmp

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memory/2728-6-0x0000000000400000-0x000000000040E000-memory.dmp

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memory/4008-9-0x0000000000400000-0x000000000040E000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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