blihanstealer | 429fd92dec1a84a087daf3f1a3d58e37db09ee2fc91339e1186320e416143f21

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
27/05/2026, 04:36

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General

Target
2026-05-27_9b1011933d20f1973130929d407ab6a9_elex_qilin.exe
Size 97KB
Sample260527-e7874afs4j
SHA256 429fd92dec1a84a087daf3f1a3d58e37db09ee2fc91339e1186320e416143f21
MD5 9b1011933d20f1973130929d407ab6a9
SHA1 5add596d612033486616f187b534029afc8b45c1
SHA512 ecb9e7b8c14427b3c160ff891ec8df294ecaf50c7289aff9c89960e224c1fe754987963c1771d5d103419c5e368f59c00f29fdb83f525f7c350f9123e337a8ef
SSDEEP 3072:E1oEFlt6vghzwYu7vih9GueIh9j2IoHAcBHUIF2kvEHrH1hyhuhrh1hKh2h7hWhy:E6
TLSH
T146A3A34B4E71CDDBE800143EABAAA21C86D3FC541CCCF35697EED84670C2918899E967
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/4812-0-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/files/0x001d00000002b310-3.dat	INDICATOR_EXE_Packed_MPress
behavioral2/memory/4812-5-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/1040-9-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/4180-10-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress

Deletes itself 1 IoCs

pid	Process
4180	microsofthelp.exe

Executes dropped EXE 2 IoCs

pid	Process
4180	microsofthelp.exe
1040	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-1-5-21-2654269261-3199571979-4291878722-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	2026-05-27_9b1011933d20f1973130929d407ab6a9_elex_qilin.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	2026-05-27_9b1011933d20f1973130929d407ab6a9_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	2026-05-27_9b1011933d20f1973130929d407ab6a9_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 4812 wrote to memory of 4180	4812	2026-05-27_9b1011933d20f1973130929d407ab6a9_elex_qilin.exe	81

C:\Users\Admin\AppData\Local\Temp\2026-05-27_9b1011933d20f1973130929d407ab6a9_elex_qilin.exe
"C:\Users\Admin\AppData\Local\Temp\2026-05-27_9b1011933d20f1973130929d407ab6a9_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:4812
- 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:4180

C:\Windows\microsofthelp.exe
C:\Windows\microsofthelp.exe
1⤵
- Executes dropped EXE
PID:1040

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 b4199e129999b97801f450c3dea5a387d8c9d0989932adcf77027c0bc2a27d12
MD5 7467d4b3fcdbf8bc71d07e508ae94cc8
SHA1 4f20231e1ce6ff88a5b0d19976360183848b510b
SHA512 b87393a58906f452dc18518dd533db8ac4e661926d328d158fd83ffab13a2333c1a07dfa1bcb37869d6806e14d2a5478f6d7a395e96f5d2a37ac7e4b0f4328f1
SSDEEP 3072:E1oEFlt6vghzwYu7vih9GueIh9j2IoHAcBHUIF2kvEHrH1hyhuhrh1hKh2h7hWh8:E6
TLSH
T1E9A3A34B4E71CDDBE800143EABAAA21C86D3FC541CCCF35697EED84670C2918899E967
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1040-9-0x0000000000400000-0x000000000040E000-memory.dmp

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memory/4180-10-0x0000000000400000-0x000000000040E000-memory.dmp

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memory/4812-0-0x0000000000400000-0x000000000040E000-memory.dmp

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memory/4812-5-0x0000000000400000-0x000000000040E000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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