blihanstealer | 5b86bcf45492a1557b3a0c8e17fbd1901510adc7dad40f328a37af3e65827dce

Analysis

max time kernel
149s
max time network
150s
platform
windows11-21h2_x64
resource
win11-20260130-en
resource tags

arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
02/05/2026, 03:07

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
2026-05-02_91a2a8b9c09c45778d2aa470325685be_elex_qilin.exe
Size 98KB
Sample260502-dms5pscw3j
SHA256 5b86bcf45492a1557b3a0c8e17fbd1901510adc7dad40f328a37af3e65827dce
MD5 91a2a8b9c09c45778d2aa470325685be
SHA1 2c890bea2b09f734c9e57597a34d26e544e0f3fd
SHA512 c2a61b63af62530907a0e0181e03abaae4fafd4264dfd8f4cc095b46350e85624e8dd2fdfb398adc23e5c093d6f1ef9e288e985bf3d9bebc803447ad4260cfc8
SSDEEP 3072:E1oEFlt6vghzwYu7vih9GueIh9j2IoHAcBHUIF2kvEHrH1hyhuhrh1hKh2h7hWhR:E6
TLSH
T10DA3A34B4E71CDDBE810143EABAAA21C86D3FC541CDCF35A97DEC84670C291C889E967
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/2304-0-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/files/0x002000000002b202-3.dat	INDICATOR_EXE_Packed_MPress
behavioral2/memory/2304-5-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/3908-8-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/2016-10-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress

Deletes itself 1 IoCs

pid	Process
2016	microsofthelp.exe

Executes dropped EXE 2 IoCs

pid	Process
2016	microsofthelp.exe
3908	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-1-5-21-2122505878-652277452-2375749442-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	2026-05-02_91a2a8b9c09c45778d2aa470325685be_elex_qilin.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	2026-05-02_91a2a8b9c09c45778d2aa470325685be_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	2026-05-02_91a2a8b9c09c45778d2aa470325685be_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 2304 wrote to memory of 2016	2304	2026-05-02_91a2a8b9c09c45778d2aa470325685be_elex_qilin.exe	80

C:\Users\Admin\AppData\Local\Temp\2026-05-02_91a2a8b9c09c45778d2aa470325685be_elex_qilin.exe
"C:\Users\Admin\AppData\Local\Temp\2026-05-02_91a2a8b9c09c45778d2aa470325685be_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:2304
- 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:2016

C:\Windows\microsofthelp.exe
C:\Windows\microsofthelp.exe
1⤵
- Executes dropped EXE
PID:3908

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

Replay Monitor

Loading Replay Monitor...

Downloads

microsofthelp.exe

Path C:\Windows\microsofthelp.exe
Size 98KB
SHA256 01767a489c1eb918a9121af99908bf666d0c3f0ee767d6ea2aa6a53b90f65f82
MD5 72732492e4e8711fd7f9fd40996a15cd
SHA1 fb84bfa9d25cb492329a189bf3096cd429578e80
SHA512 fe48539a65071dd5a09c064a738f10fc8efe53625afea41a8951cfec212d104a0eb37bf08416e1ebbc8da22ec85859e04af45cce2dadd4387d59879e52187a80
SSDEEP 3072:E1oEFlt6vghzwYu7vih9GueIh9j2IoHAcBHUIF2kvEHrH1hyhuhrh1hKh2h7hWha:E6
TLSH
T131A3A34B4E71CDDBE810143EABAAA21C86D3FC541CDCF35A97DEC84670C291C899E967
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2016-10-0x0000000000400000-0x000000000040E000-memory.dmp

Download

memory/2304-0-0x0000000000400000-0x000000000040E000-memory.dmp

Download

memory/2304-5-0x0000000000400000-0x000000000040E000-memory.dmp

Download

memory/3908-8-0x0000000000400000-0x000000000040E000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

Replay Monitor

Loading Replay Monitor...

Downloads