blihanstealer | 53a2ef28934e1ed6acd8d683d91d313d9a9fff3eca3faff3e20c89b1d66506c8

Analysis

max time kernel
149s
max time network
153s
platform
windows11-21h2_x64
resource
win11-20260130-en
resource tags

arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
16/04/2026, 10:14

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General

Target
2026-04-16_27a8e6ebda27ebce0a83eb41e4b1cbef_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
Size 261KB
Sample260416-l92pcsfy21
SHA256 53a2ef28934e1ed6acd8d683d91d313d9a9fff3eca3faff3e20c89b1d66506c8
MD5 27a8e6ebda27ebce0a83eb41e4b1cbef
SHA1 7dbc7e420a464c4d1622ce2bec34ed8b6824b149
SHA512 80fbef56bb411111ea92b815930c4e7d089a3e06971739e6901eaf35bf2c0b8bb9754078a478ef8d3a814cfcadaacec5c865fcafb40e4d1b7e05675fcd54639f
SSDEEP 3072:NAoglOwvl4ulkP6vghzwYu7vih9GueIh9j2IoHAjUvJQ/johleHhvGhZchUXahNf:een/WDKW1Lgbdl0TBBvjc
TLSH
T1FF449E1275D1C1B3C4A2103141EA8B3D9A7F78210BB9D6D79BDCD9762E613D0A73A2CE
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/1712-0-0x0000000000400000-0x000000000040F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/files/0x001b00000002b3cc-3.dat	INDICATOR_EXE_Packed_MPress
behavioral2/memory/1712-4-0x0000000000400000-0x000000000040F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/3252-7-0x0000000000400000-0x000000000040F000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/1136-8-0x0000000000400000-0x000000000040F000-memory.dmp	INDICATOR_EXE_Packed_MPress

Deletes itself 1 IoCs

pid	Process
1136	microsofthelp.exe

Executes dropped EXE 2 IoCs

pid	Process
1136	microsofthelp.exe
3252	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-1-5-21-2397528088-2630719772-1129911217-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	2026-04-16_27a8e6ebda27ebce0a83eb41e4b1cbef_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\microsofthelp.exe	2026-04-16_27a8e6ebda27ebce0a83eb41e4b1cbef_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.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	2026-04-16_27a8e6ebda27ebce0a83eb41e4b1cbef_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 1712 wrote to memory of 1136	1712	2026-04-16_27a8e6ebda27ebce0a83eb41e4b1cbef_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe	79

C:\Users\Admin\AppData\Local\Temp\2026-04-16_27a8e6ebda27ebce0a83eb41e4b1cbef_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
"C:\Users\Admin\AppData\Local\Temp\2026-04-16_27a8e6ebda27ebce0a83eb41e4b1cbef_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:1712
- 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:1136

C:\Windows\microsofthelp.exe
C:\Windows\microsofthelp.exe
1⤵
- Executes dropped EXE
PID:3252

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 261KB
SHA256 e64b90807002fe460de25e00f1ee2e9e7ceddd141ee1e985e7a993604bdc0667
MD5 1fcd22a2b8f2c96b8e7ef82db3849bee
SHA1 fe47f2cbcc47cedaeaf7e2ab93d02bd775ae730a
SHA512 8c806c73cc2d8fe380bc2a2d668b21ebaf11d876d3332155992dac22c7d492fa1fff453c366b9d98e3f5c3b57baa0c6b4dc52c4609c93bb0e78d1eb5ca24fec7
SSDEEP 3072:NAoglOwvl4ulkP6vghzwYu7vih9GueIh9j2IoHAjUvJQ/johleHhvGhZchUXahNx:een/WDKW1Lgbdl0TBBvjc
TLSH
T11E449E1275D1C1B3C4A2103141EA8B3D9A7F78210BB9D6D79BDCD9762E613D0A73A2CE
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1136-8-0x0000000000400000-0x000000000040F000-memory.dmp

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memory/1712-0-0x0000000000400000-0x000000000040F000-memory.dmp

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memory/1712-4-0x0000000000400000-0x000000000040F000-memory.dmp

Download

memory/3252-7-0x0000000000400000-0x000000000040F000-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