blihanstealer | 21d1161bdf17ca73ffcb117db5e9e5561ac8a6a8b99ef5fc7d8b3ac965bb041d

Analysis

max time kernel
149s
platform
windows11-ltsc_2024_x64
resource
win11ltsc2024-20260629-en
resource tags

arch:x64arch:x86image:win11ltsc2024-20260629-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
submitted
05/07/2026, 07:44

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General

Target
2026-07-05_436a9ca68635de41989b618a600b7304_elex_qilin.exe
Size 97KB
Sample260705-jktaksaz2z
SHA256 21d1161bdf17ca73ffcb117db5e9e5561ac8a6a8b99ef5fc7d8b3ac965bb041d
MD5 436a9ca68635de41989b618a600b7304
SHA1 3afb57e00c57f846508d5f5550d8052e2cd8b733
SHA512 7a406b509c08ea3f247a3ee53cd587a58e9e582a76fceac7ff3dea9243bd9e80decac8027676898cef444a95e33db9768a417bf4142209b6c378afef40d00dcc
SSDEEP 3072:E1oEFlt6vghzwYu7vih9GueIh9j2IoHAjU+EmkcU+h+hhjhkhMh8h4qHKh+hHhDF:Eo
TLSH
T134A3B24B4EA5CEDBD804103B9BEAA21C86E3FC451DDCF35957EEC80660C2918C99E997
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/6900-0-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/files/0x001a0000000118e0-4.dat	INDICATOR_EXE_Packed_MPress
behavioral2/memory/6900-7-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/7100-9-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/5392-10-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress

Deletes itself 1 IoCs

pid	Process
5392	microsofthelp.exe

Executes dropped EXE 2 IoCs

pid	Process
5392	microsofthelp.exe
7100	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-1-5-21-1935666426-3801330415-1166019131-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	2026-07-05_436a9ca68635de41989b618a600b7304_elex_qilin.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	2026-07-05_436a9ca68635de41989b618a600b7304_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	2026-07-05_436a9ca68635de41989b618a600b7304_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 6900 wrote to memory of 5392	6900	2026-07-05_436a9ca68635de41989b618a600b7304_elex_qilin.exe	91

C:\Users\Admin\AppData\Local\Temp\2026-07-05_436a9ca68635de41989b618a600b7304_elex_qilin.exe
"C:\Users\Admin\AppData\Local\Temp\2026-07-05_436a9ca68635de41989b618a600b7304_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:6900
- 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:5392

C:\Windows\microsofthelp.exe
C:\Windows\microsofthelp.exe
1⤵
- Executes dropped EXE
PID:7100

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 23421da12e2e7b20eb84d81cb14cf098332f13021d0dfbd3e3ed636f43c207a9
MD5 dd809e249f5d1571b5bb722167f1d609
SHA1 08f4a9f4b054854657760027d2cf65ef5881eadc
SHA512 5558a8454e14b3e360be88c32051f9b8780b808bc74ca959714e6c4dcbf986b5f10d95c2164d12366f47bf16cc20bbf6a93999b232f8d56e4bab4d25f4d0166d
SSDEEP 3072:E1oEFlt6vghzwYu7vih9GueIh9j2IoHAjU+EmkcU+h+hhjhkhMh8h4qHKh+hHhDE:Eo
TLSH
T144A3B34B4EA5CEDBD804103B9BEAB21C86E3FC451DDCF35957EEC80660C2918C99E997
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/5392-10-0x0000000000400000-0x000000000040E000-memory.dmp

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memory/6900-0-0x0000000000400000-0x000000000040E000-memory.dmp

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memory/6900-7-0x0000000000400000-0x000000000040E000-memory.dmp

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memory/7100-9-0x0000000000400000-0x000000000040E000-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