Malware Analysis Report

2025-06-15 19:58

Sample ID 250226-1l4alstygt
Target 36a0e7e114d41c3098f51dd316cdbd4de021e15af81964789b0cb2f9f7ce9ca1
SHA256 36a0e7e114d41c3098f51dd316cdbd4de021e15af81964789b0cb2f9f7ce9ca1
Tags
blihanstealer discovery persistence stealer trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

36a0e7e114d41c3098f51dd316cdbd4de021e15af81964789b0cb2f9f7ce9ca1

Threat Level: Known bad

The file 36a0e7e114d41c3098f51dd316cdbd4de021e15af81964789b0cb2f9f7ce9ca1 was found to be: Known bad.

Malicious Activity Summary

blihanstealer discovery persistence stealer trojan

Blihanstealer family

BlihanStealer

Deletes itself

Executes dropped EXE

Adds Run key to start application

Drops file in Windows directory

System Location Discovery: System Language Discovery

Unsigned PE

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-02-26 21:45

Signatures

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2025-02-26 21:45

Reported

2025-02-26 21:47

Platform

win7-20240903-en

Max time kernel

149s

Max time network

123s

Command Line

"C:\Users\Admin\AppData\Local\Temp\36a0e7e114d41c3098f51dd316cdbd4de021e15af81964789b0cb2f9f7ce9ca1.exe"

Signatures

BlihanStealer

trojan stealer blihanstealer

Blihanstealer family

blihanstealer

Deletes itself

Description Indicator Process Target
N/A N/A C:\Windows\microsofthelp.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\microsofthelp.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" C:\Users\Admin\AppData\Local\Temp\36a0e7e114d41c3098f51dd316cdbd4de021e15af81964789b0cb2f9f7ce9ca1.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\microsofthelp.exe C:\Users\Admin\AppData\Local\Temp\36a0e7e114d41c3098f51dd316cdbd4de021e15af81964789b0cb2f9f7ce9ca1.exe N/A
File created C:\Windows\HidePlugin.dll C:\Windows\microsofthelp.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\36a0e7e114d41c3098f51dd316cdbd4de021e15af81964789b0cb2f9f7ce9ca1.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\36a0e7e114d41c3098f51dd316cdbd4de021e15af81964789b0cb2f9f7ce9ca1.exe

"C:\Users\Admin\AppData\Local\Temp\36a0e7e114d41c3098f51dd316cdbd4de021e15af81964789b0cb2f9f7ce9ca1.exe"

C:\Windows\microsofthelp.exe

"C:\Windows\microsofthelp.exe"

Network

N/A

Files

memory/2644-0-0x0000000000400000-0x000000000040E000-memory.dmp

C:\Windows\microsofthelp.exe

MD5 57e6ae50de2397fbee92983d328d1551
SHA1 a6139e0099f6d5552ed123ba74d3fad17d47b245
SHA256 e8d79d978ae011eed968146a7c004d58c3a6020c75a66cc6416b25baacffb5af
SHA512 dab6a2b2bd264246069d2fb48fcb5e5f5dfb5fd7ab6c623d2e575a7de4e0151cff1285f71ec260d5e1695ec62de10f274fe2a6830911992d8dd89f2631cd7995

memory/2644-7-0x0000000000400000-0x000000000040E000-memory.dmp

memory/840-10-0x0000000000400000-0x000000000040E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-02-26 21:45

Reported

2025-02-26 21:47

Platform

win10v2004-20250217-en

Max time kernel

149s

Max time network

139s

Command Line

"C:\Users\Admin\AppData\Local\Temp\36a0e7e114d41c3098f51dd316cdbd4de021e15af81964789b0cb2f9f7ce9ca1.exe"

Signatures

BlihanStealer

trojan stealer blihanstealer

Blihanstealer family

blihanstealer

Deletes itself

Description Indicator Process Target
N/A N/A C:\Windows\microsofthelp.exe N/A

Executes dropped EXE

Description Indicator Process Target
N/A N/A C:\Windows\microsofthelp.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-250031470-1197856012-2659781506-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" C:\Users\Admin\AppData\Local\Temp\36a0e7e114d41c3098f51dd316cdbd4de021e15af81964789b0cb2f9f7ce9ca1.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\microsofthelp.exe C:\Users\Admin\AppData\Local\Temp\36a0e7e114d41c3098f51dd316cdbd4de021e15af81964789b0cb2f9f7ce9ca1.exe N/A
File created C:\Windows\HidePlugin.dll C:\Windows\microsofthelp.exe N/A

System Location Discovery: System Language Discovery

discovery
Description Indicator Process Target
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Users\Admin\AppData\Local\Temp\36a0e7e114d41c3098f51dd316cdbd4de021e15af81964789b0cb2f9f7ce9ca1.exe N/A
Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language C:\Windows\microsofthelp.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\36a0e7e114d41c3098f51dd316cdbd4de021e15af81964789b0cb2f9f7ce9ca1.exe

"C:\Users\Admin\AppData\Local\Temp\36a0e7e114d41c3098f51dd316cdbd4de021e15af81964789b0cb2f9f7ce9ca1.exe"

C:\Windows\microsofthelp.exe

"C:\Windows\microsofthelp.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 g.bing.com udp
US 150.171.28.10:443 g.bing.com tcp
US 150.171.28.10:443 g.bing.com tcp
US 150.171.28.10:443 g.bing.com tcp
US 150.171.28.10:443 g.bing.com tcp
US 150.171.28.10:443 g.bing.com tcp

Files

memory/2136-0-0x0000000000400000-0x000000000040E000-memory.dmp

C:\Windows\microsofthelp.exe

MD5 57e6ae50de2397fbee92983d328d1551
SHA1 a6139e0099f6d5552ed123ba74d3fad17d47b245
SHA256 e8d79d978ae011eed968146a7c004d58c3a6020c75a66cc6416b25baacffb5af
SHA512 dab6a2b2bd264246069d2fb48fcb5e5f5dfb5fd7ab6c623d2e575a7de4e0151cff1285f71ec260d5e1695ec62de10f274fe2a6830911992d8dd89f2631cd7995

memory/2136-6-0x0000000000400000-0x000000000040E000-memory.dmp

memory/4556-7-0x0000000000400000-0x000000000040E000-memory.dmp

memory/4556-8-0x0000000000400000-0x000000000040E000-memory.dmp