blihanstealer | 2926d86aaacd1e2eb8427db1b46786e868ebe8bb8b6d95f1aae0247ec307ffd4

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20260130-en
resource tags

arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
04/05/2026, 04:26

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General

Target
2026-05-04_d38ed39b152f7b59d6bbe27bd1d7dc07_elex_qilin.exe
Size 95KB
Sample260504-e2p72acs8s
SHA256 2926d86aaacd1e2eb8427db1b46786e868ebe8bb8b6d95f1aae0247ec307ffd4
MD5 d38ed39b152f7b59d6bbe27bd1d7dc07
SHA1 d44d1591638e34da9114fe090a677ea17cd9fb2d
SHA512 a27214ec151a09a16aa34665cf46eccf6726a5c75c51b983d35782e576c2c0ee669eb08edbb25d7dcb5d10d7b4ce9c6b12d7521ac6f9722beb288d439e25df15
SSDEEP 1536:e6q10k0EFjed6rqJ+6vghzwYu7vih9GueIh9j2IoHAjU+EmkcU+h+hhjhkhMh8ht:E1oEFlt6vghzwYu7vih9GueIh9j2IoHe
TLSH
T10993C34B4E66CDDBD804103B9BEAA26C82E3FC451CDCF35957EEC80674C2918C99E997
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
behavioral1/memory/4304-0-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x000f000000021658-3.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/4304-6-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/2920-8-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/4472-9-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress

Deletes itself 1 IoCs

pid	Process
4472	microsofthelp.exe

Executes dropped EXE 2 IoCs

pid	Process
4472	microsofthelp.exe
2920	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-1-5-21-1609746302-1884177235-1125644204-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	2026-05-04_d38ed39b152f7b59d6bbe27bd1d7dc07_elex_qilin.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	2026-05-04_d38ed39b152f7b59d6bbe27bd1d7dc07_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	2026-05-04_d38ed39b152f7b59d6bbe27bd1d7dc07_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 4304 wrote to memory of 4472	4304	2026-05-04_d38ed39b152f7b59d6bbe27bd1d7dc07_elex_qilin.exe	83

C:\Users\Admin\AppData\Local\Temp\2026-05-04_d38ed39b152f7b59d6bbe27bd1d7dc07_elex_qilin.exe
"C:\Users\Admin\AppData\Local\Temp\2026-05-04_d38ed39b152f7b59d6bbe27bd1d7dc07_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:4304
- 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:4472

C:\Windows\microsofthelp.exe
C:\Windows\microsofthelp.exe
1⤵
- Executes dropped EXE
PID:2920

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 95KB
SHA256 612cb701047fa1b294631fc78753c2ef633b9fdb05ee77647a25442d5d81921f
MD5 1f760de30036ef84465ea9c64da35d7f
SHA1 336bce29dad541bef7e4f0584922fe6096c90ca7
SHA512 7b0e82d66ac4f909c121699ba80df1525d6ac80e41c825cf4ea1fa9e2927a23303155a16e76d6c36825d872bcdc786ec1f10a5e30e014346a94988a477284240
SSDEEP 1536:e6q10k0EFjed6rqJ+6vghzwYu7vih9GueIh9j2IoHAjU+EmkcU+h+hhjhkhMh8hc:E1oEFlt6vghzwYu7vih9GueIh9j2IoHH
TLSH
T1CFA3C34B4E66CDDBD804103B9BEAA26C82E3FC451CDCF35957EEC80664C2918C99E997
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2920-8-0x0000000000400000-0x000000000040E000-memory.dmp

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memory/4304-0-0x0000000000400000-0x000000000040E000-memory.dmp

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memory/4304-6-0x0000000000400000-0x000000000040E000-memory.dmp

Download

memory/4472-9-0x0000000000400000-0x000000000040E000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads