blihanstealer | f9af05b3867deb1db7daa1738742472e86b2097c1528a95fa0b37ba4d9b2f549

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20260130-en
resource tags

arch:x64arch:x86image:win10v2004-20260130-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
17/04/2026, 18:51

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General

Target
2026-04-17_7e84afcb8c4d938ff4e53bea5fc393bd_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
Size 267KB
Sample260417-xhqcssas3t
SHA256 f9af05b3867deb1db7daa1738742472e86b2097c1528a95fa0b37ba4d9b2f549
MD5 7e84afcb8c4d938ff4e53bea5fc393bd
SHA1 9d45758332c563d6bb0e9b00d1cbc42d7e3fe843
SHA512 242da6e02c6e1b9c22bc183d5c120f1f330824026a8baec397324131f4c8315583ea4c686687035424daefc3425cfbc304cdc742014c8dc77db5925450067703
SSDEEP 3072:E1oEFlt6vghzwYu7vih9GueIh9j2IoHAjUvJQ/johleHhvGhZchUXahNh3hNhH6j:ETWDKW1Lgbdl0TBBvjc/oVM6
TLSH
T12444AE1175C1C5B3C466003545E6CB3D8A7B78210BF9E6C7BBDC9A6A2E513D0A73A2CB
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery blihanstealer persistence stealer trojan

Malware Config

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
behavioral1/memory/748-0-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/files/0x000c000000024255-3.dat	INDICATOR_EXE_Packed_MPress
behavioral1/memory/748-5-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/4100-8-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral1/memory/1632-9-0x0000000000400000-0x000000000040E000-memory.dmp	INDICATOR_EXE_Packed_MPress

Deletes itself 1 IoCs

pid	Process
1632	microsofthelp.exe

Executes dropped EXE 2 IoCs

pid	Process
1632	microsofthelp.exe
4100	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-1-5-21-312252282-3884318443-358092420-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe"	2026-04-17_7e84afcb8c4d938ff4e53bea5fc393bd_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	2026-04-17_7e84afcb8c4d938ff4e53bea5fc393bd_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	2026-04-17_7e84afcb8c4d938ff4e53bea5fc393bd_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 748 wrote to memory of 1632	748	2026-04-17_7e84afcb8c4d938ff4e53bea5fc393bd_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe	85

C:\Users\Admin\AppData\Local\Temp\2026-04-17_7e84afcb8c4d938ff4e53bea5fc393bd_drokbk_elex_rhadamanthys_smoke-loader_stealc_stop_tofsee.exe
"C:\Users\Admin\AppData\Local\Temp\2026-04-17_7e84afcb8c4d938ff4e53bea5fc393bd_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:748
- 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:1632

C:\Windows\microsofthelp.exe
C:\Windows\microsofthelp.exe
1⤵
- Executes dropped EXE
PID:4100

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 268KB
SHA256 bf9a1edd6feb0c083c2be7112f1a87d089b0f63a2f38f921ed1fb158aca0d797
MD5 74ea1c047af63ba91b8bf4ebdf0f1c67
SHA1 25670cac49392f0b43b25a80aeecd40fd67b1ad0
SHA512 9aa6e85da08e4bf68ebb29cdef236d16fadf30699df25f1ed27b4f78aa535c431249b165c95b5a8ccd2dd11a4cc1153c65063a33a03f178191c9c170de9ed94a
SSDEEP 3072:E1oEFlt6vghzwYu7vih9GueIh9j2IoHAjUvJQ/johleHhvGhZchUXahNh3hNhH6Z:ETWDKW1Lgbdl0TBBvjc/oVM6
TLSH
T11E44AE1175C1C5B3C466003545E6CB3D8A7B78210BF9E6C7BBDC9A6A2E513D0A73A2CB
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/748-0-0x0000000000400000-0x000000000040E000-memory.dmp

Download

memory/748-5-0x0000000000400000-0x000000000040E000-memory.dmp

Download

memory/1632-9-0x0000000000400000-0x000000000040E000-memory.dmp

Download

memory/4100-8-0x0000000000400000-0x000000000040E000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads