blihanstealer | aec9ed8416fc3a771cf537fdabbaeb785e7fbed0d31cc89f9669899edcc63cbb

Analysis

max time kernel
149s
max time network
148s
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_a0428ece12c02b9ed523f2b45b63cfc8_elex_qilin.exe
Size 97KB
Sample260527-e8nb1sfs4m
SHA256 aec9ed8416fc3a771cf537fdabbaeb785e7fbed0d31cc89f9669899edcc63cbb
MD5 a0428ece12c02b9ed523f2b45b63cfc8
SHA1 1c6b2d1071c9dce2e5cf52b49a19784341bee0c7
SHA512 ed25eab8a506fe0613d5e9c5221ced2b80e625b35138dd7023bdb34a8095a63497f10c1b8c31be8f9942160607196aaa64f33ad762bb07524f13a70287451385
SSDEEP 3072:E1oEFlt6vghzwYu7vih9GueIh9j2IoHAjU+EmkcU+h+hhjhkhMh8h4qHKh+hHhDN:E
TLSH
T1A4A3C34B4E66CDDBD804103BABEAA25C82E3FC451CDCF35957EEC80674C2918C99E997
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/3316-0-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/files/0x000900000002a8ed-3.dat	INDICATOR_EXE_Packed_MPress
behavioral2/memory/3316-5-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/2244-8-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/3600-10-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress

Deletes itself 1 IoCs

pid	Process
3600	microsofthelp.exe

Executes dropped EXE 2 IoCs

pid	Process
3600	microsofthelp.exe
2244	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-1-5-21-2824035265-2271499813-2042964211-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	2026-05-27_a0428ece12c02b9ed523f2b45b63cfc8_elex_qilin.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	2026-05-27_a0428ece12c02b9ed523f2b45b63cfc8_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_a0428ece12c02b9ed523f2b45b63cfc8_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 3316 wrote to memory of 3600	3316	2026-05-27_a0428ece12c02b9ed523f2b45b63cfc8_elex_qilin.exe	84

C:\Users\Admin\AppData\Local\Temp\2026-05-27_a0428ece12c02b9ed523f2b45b63cfc8_elex_qilin.exe
"C:\Users\Admin\AppData\Local\Temp\2026-05-27_a0428ece12c02b9ed523f2b45b63cfc8_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:3316
- 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:3600

C:\Windows\microsofthelp.exe
C:\Windows\microsofthelp.exe
1⤵
- Executes dropped EXE
PID:2244

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 1c451203fe071a9ca1b60af433b5b54d1e76d1eb47e4646e9b5172c22fc2ef7f
MD5 f14e38bff020a432bdba27f9ab22bb4c
SHA1 b7dd997b1c1c037585490e3fd5dc12fdfaece74a
SHA512 811a5c05bb9a1f04b42cb85e3b106948a948a810f3c363a62a8cfe7f6bbc391ddc8ebf2e05b9ea00c40b6fe1c88caaaf278419e5d9a9c41e274551be659d30d5
SSDEEP 3072:E1oEFlt6vghzwYu7vih9GueIh9j2IoHAjU+EmkcU+h+hhjhkhMh8h4qHKh+hHhDB:E
TLSH
T123A3C34B4E66CDDBD804103BABEAA25C82E3FC451CDCF35957EEC80674C2918C99E997
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/2244-8-0x0000000000400000-0x000000000040E000-memory.dmp

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memory/3316-0-0x0000000000400000-0x000000000040E000-memory.dmp

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memory/3316-5-0x0000000000400000-0x000000000040E000-memory.dmp

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memory/3600-10-0x0000000000400000-0x000000000040E000-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