blihanstealer | ecbd55b92a08719c37748d1e696f927f505901e754f8abdc6c054be1e918b84c

Analysis

max time kernel
149s
max time network
121s
platform
windows11-21h2_x64
resource
win11-20260130-en
resource tags

arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
15/04/2026, 10:25

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General

Target
2026-04-15_538e7e2c69682f925405825319b8e39d_elex_qilin.exe
Size 97KB
Sample260415-mf433aby7k
SHA256 ecbd55b92a08719c37748d1e696f927f505901e754f8abdc6c054be1e918b84c
MD5 538e7e2c69682f925405825319b8e39d
SHA1 460cbb9ccbc896c9b55f89e3f16929318c8005d9
SHA512 82754e17a4051a0585841a8916c2f4891e991886d8dea791d9a74170fb6d4c1400a53eb304f896eb203db8256f0cf44200a9bad358ab8302668c16139673dcd9
SSDEEP 3072:E1oEFlt6vghzwYu7vih9GueIh9j2IoHAcBHUIF2kvEHrH1hyhuhrh1hKh2h7hWhj:E6
TLSH
T134A3B34B4E71CDDBE810143EA7AAA21C86D3FC541CDCF35697DEC84670C291C899E967
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/4972-0-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/files/0x001d00000002b11b-3.dat	INDICATOR_EXE_Packed_MPress
behavioral2/memory/4972-5-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/3724-9-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/3208-10-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress

Deletes itself 1 IoCs

pid	Process
3208	microsofthelp.exe

Executes dropped EXE 2 IoCs

pid	Process
3208	microsofthelp.exe
3724	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"	2026-04-15_538e7e2c69682f925405825319b8e39d_elex_qilin.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	2026-04-15_538e7e2c69682f925405825319b8e39d_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	2026-04-15_538e7e2c69682f925405825319b8e39d_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 4972 wrote to memory of 3208	4972	2026-04-15_538e7e2c69682f925405825319b8e39d_elex_qilin.exe	79

C:\Users\Admin\AppData\Local\Temp\2026-04-15_538e7e2c69682f925405825319b8e39d_elex_qilin.exe
"C:\Users\Admin\AppData\Local\Temp\2026-04-15_538e7e2c69682f925405825319b8e39d_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:4972
- 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:3208

C:\Windows\microsofthelp.exe
C:\Windows\microsofthelp.exe
1⤵
- Executes dropped EXE
PID:3724

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 cd28d5300fdaa05128714a6e6e5d680bbe21ebb62c3199bb56b0457a449e9fc6
MD5 df01f8534e89ccce4906885ec86389ba
SHA1 10cd4bbc5df06942336c8df707d03ab99fe58747
SHA512 7a2ba4fca1becc10820b9c2b25ca25dc2efba7ea8a6932254f8d7d0d40764a4cdf16390ae14983cada4b28608e6afe407eac3daaeef60d4b988a973ebbc9b2e1
SSDEEP 3072:E1oEFlt6vghzwYu7vih9GueIh9j2IoHAcBHUIF2kvEHrH1hyhuhrh1hKh2h7hWhg:E6
TLSH
T186A3B34B4E71CDDBE800143EA7AAA21C86D3FC541CDCF35697DEC84670C291C899E967
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/3208-10-0x0000000000400000-0x000000000040E000-memory.dmp

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memory/3724-9-0x0000000000400000-0x000000000040E000-memory.dmp

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memory/4972-0-0x0000000000400000-0x000000000040E000-memory.dmp

Download

memory/4972-5-0x0000000000400000-0x000000000040E000-memory.dmp

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Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads