blihanstealer | dfc26b0d45b6c29026c4d697c622ed6b79854ae72003ac13d3703be38609313c

Analysis

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

arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
03/05/2026, 03:37

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General

Target
2026-05-03_d86bc8a795f1282000040287be5b8f0e_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
Size 302KB
Sample260503-d6hhbabs3v
SHA256 dfc26b0d45b6c29026c4d697c622ed6b79854ae72003ac13d3703be38609313c
MD5 d86bc8a795f1282000040287be5b8f0e
SHA1 42ab85b8623c2d0523904966dd73f2ccc042e74c
SHA512 32614c5b0215595c159622b005354eaefa6edadbdb59df058a38ed543e8e66156e36719e1da9338d14edd5d8c19100fb3a7d0fad6e9d87af89a848a7289aca1e
SSDEEP 3072:NAoglOwvl4ulkP6vghzwYu7vih9GueIh9j2IoHAjUvJQ/johleHhvGhZchUXahNz:een/WDKW1Lgbdl0TBBvjc/oVM6K
TLSH
T15B64AE1275C1C5B3C462003145E6DB3D8A7B7C210BB9D6D7BBDC9A6A2E512D0E63A2CB
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/4892-0-0x0000000000400000-0x000000000040F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/files/0x002000000002a117-3.dat	INDICATOR_EXE_Packed_MPress
behavioral2/memory/4892-4-0x0000000000400000-0x000000000040F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/4876-7-0x0000000000400000-0x000000000040F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/4864-8-0x0000000000400000-0x000000000040F000-memory.dmp	INDICATOR_EXE_Packed_MPress

Deletes itself 1 IoCs

pid	Process
4864	microsofthelp.exe

Executes dropped EXE 2 IoCs

pid	Process
4864	microsofthelp.exe
4876	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-1-5-21-1456842261-3464001825-2855069093-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	2026-05-03_d86bc8a795f1282000040287be5b8f0e_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\HidePlugin.dll	microsofthelp.exe
File created	C:\Windows\microsofthelp.exe	2026-05-03_d86bc8a795f1282000040287be5b8f0e_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.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	2026-05-03_d86bc8a795f1282000040287be5b8f0e_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	microsofthelp.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 4892 wrote to memory of 4864	4892	2026-05-03_d86bc8a795f1282000040287be5b8f0e_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe	80

C:\Users\Admin\AppData\Local\Temp\2026-05-03_d86bc8a795f1282000040287be5b8f0e_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
"C:\Users\Admin\AppData\Local\Temp\2026-05-03_d86bc8a795f1282000040287be5b8f0e_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4892
- 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:4864

C:\Windows\microsofthelp.exe
C:\Windows\microsofthelp.exe
1⤵
- Executes dropped EXE
PID:4876

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 302KB
SHA256 cbed5701fa700aaeecc9a24289e7a3ab8ae32407e839de0e116e90749a8e5292
MD5 19d113a14796e61b384eaf94125641aa
SHA1 093d96e6d443126195f901062f5bcd7a32540fe2
SHA512 fb90a8d806acc635507e2b913985e96b686aa3af7215b00cddc4e7983681334c638b5be85a1f3e5be03e48c9623c964666d206797e30b9d2d34288d2616d72f7
SSDEEP 3072:NAoglOwvl4ulkP6vghzwYu7vih9GueIh9j2IoHAjUvJQ/johleHhvGhZchUXahNI:een/WDKW1Lgbdl0TBBvjc/oVM6K
TLSH
T11664AE1275C1C5B3C462003145E6DB3D8A7B7C210BF9D6D7BBDC9A6A2E512D0E63A2CB
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/4864-8-0x0000000000400000-0x000000000040F000-memory.dmp

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memory/4876-7-0x0000000000400000-0x000000000040F000-memory.dmp

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memory/4892-0-0x0000000000400000-0x000000000040F000-memory.dmp

Download

memory/4892-4-0x0000000000400000-0x000000000040F000-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