Malware Analysis Report

2025-06-15 19:58

Sample ID 250226-ylx3gs1nw2
Target 0e263cac087ede69b12ce9fa085670697e07df2fc3e5f162e83937d3685630b9
SHA256 0e263cac087ede69b12ce9fa085670697e07df2fc3e5f162e83937d3685630b9
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

0e263cac087ede69b12ce9fa085670697e07df2fc3e5f162e83937d3685630b9

Threat Level: Known bad

The file 0e263cac087ede69b12ce9fa085670697e07df2fc3e5f162e83937d3685630b9 was found to be: Known bad.

Malicious Activity Summary

blihanstealer discovery persistence stealer trojan

BlihanStealer

Blihanstealer family

Executes dropped EXE

Deletes itself

Adds Run key to start application

Drops file in Windows directory

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-02-26 19:53

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2025-02-26 19:53

Reported

2025-02-26 19:55

Platform

win7-20241010-en

Max time kernel

149s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0e263cac087ede69b12ce9fa085670697e07df2fc3e5f162e83937d3685630b9.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-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" C:\Users\Admin\AppData\Local\Temp\0e263cac087ede69b12ce9fa085670697e07df2fc3e5f162e83937d3685630b9.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\microsofthelp.exe C:\Users\Admin\AppData\Local\Temp\0e263cac087ede69b12ce9fa085670697e07df2fc3e5f162e83937d3685630b9.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\0e263cac087ede69b12ce9fa085670697e07df2fc3e5f162e83937d3685630b9.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\0e263cac087ede69b12ce9fa085670697e07df2fc3e5f162e83937d3685630b9.exe

"C:\Users\Admin\AppData\Local\Temp\0e263cac087ede69b12ce9fa085670697e07df2fc3e5f162e83937d3685630b9.exe"

C:\Windows\microsofthelp.exe

"C:\Windows\microsofthelp.exe"

Network

N/A

Files

memory/2112-0-0x0000000000400000-0x000000000040E000-memory.dmp

C:\Windows\microsofthelp.exe

MD5 436bfbfe1a2708fb0abf26263f1332d6
SHA1 055bb78ef7843b0e5efd498a99b59f4c67a0899d
SHA256 e150877ae571e812b77c92e0f3392c6aefce7999dc8e341f4f0370a0eb5c7ebb
SHA512 6feaa6fe61c2063ea80d02da0cb91f5fb41096aeb60fc135c61d0457a23ce331a91483e6fbc23278e5e085a19cd21317e5f17ce202925f5c7eb79d2273a79cf7

memory/2112-7-0x0000000000400000-0x000000000040E000-memory.dmp

memory/308-10-0x0000000000400000-0x000000000040E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-02-26 19:53

Reported

2025-02-26 19:55

Platform

win10v2004-20250217-en

Max time kernel

149s

Max time network

145s

Command Line

"C:\Users\Admin\AppData\Local\Temp\0e263cac087ede69b12ce9fa085670697e07df2fc3e5f162e83937d3685630b9.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-1-5-21-100612193-3312047696-905266872-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" C:\Users\Admin\AppData\Local\Temp\0e263cac087ede69b12ce9fa085670697e07df2fc3e5f162e83937d3685630b9.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\microsofthelp.exe C:\Users\Admin\AppData\Local\Temp\0e263cac087ede69b12ce9fa085670697e07df2fc3e5f162e83937d3685630b9.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\0e263cac087ede69b12ce9fa085670697e07df2fc3e5f162e83937d3685630b9.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\0e263cac087ede69b12ce9fa085670697e07df2fc3e5f162e83937d3685630b9.exe

"C:\Users\Admin\AppData\Local\Temp\0e263cac087ede69b12ce9fa085670697e07df2fc3e5f162e83937d3685630b9.exe"

C:\Windows\microsofthelp.exe

"C:\Windows\microsofthelp.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp
US 150.171.27.10:443 tse1.mm.bing.net tcp

Files

memory/6000-0-0x0000000000400000-0x000000000040E000-memory.dmp

C:\Windows\microsofthelp.exe

MD5 436bfbfe1a2708fb0abf26263f1332d6
SHA1 055bb78ef7843b0e5efd498a99b59f4c67a0899d
SHA256 e150877ae571e812b77c92e0f3392c6aefce7999dc8e341f4f0370a0eb5c7ebb
SHA512 6feaa6fe61c2063ea80d02da0cb91f5fb41096aeb60fc135c61d0457a23ce331a91483e6fbc23278e5e085a19cd21317e5f17ce202925f5c7eb79d2273a79cf7

memory/6000-5-0x0000000000400000-0x000000000040E000-memory.dmp

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