Malware Analysis Report

2025-06-15 19:58

Sample ID 250226-2qs6wawrw4
Target 4ce57ad148a242a072958391708d382f35d10c4245e8d8bdbb7f29dfe1f601bf
SHA256 4ce57ad148a242a072958391708d382f35d10c4245e8d8bdbb7f29dfe1f601bf
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

4ce57ad148a242a072958391708d382f35d10c4245e8d8bdbb7f29dfe1f601bf

Threat Level: Known bad

The file 4ce57ad148a242a072958391708d382f35d10c4245e8d8bdbb7f29dfe1f601bf was found to be: Known bad.

Malicious Activity Summary

blihanstealer discovery persistence stealer trojan

BlihanStealer

Blihanstealer family

Deletes itself

Executes dropped EXE

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 22:47

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2025-02-26 22:47

Reported

2025-02-26 22:50

Platform

win7-20240729-en

Max time kernel

149s

Max time network

118s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4ce57ad148a242a072958391708d382f35d10c4245e8d8bdbb7f29dfe1f601bf.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-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" C:\Users\Admin\AppData\Local\Temp\4ce57ad148a242a072958391708d382f35d10c4245e8d8bdbb7f29dfe1f601bf.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\microsofthelp.exe C:\Users\Admin\AppData\Local\Temp\4ce57ad148a242a072958391708d382f35d10c4245e8d8bdbb7f29dfe1f601bf.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\4ce57ad148a242a072958391708d382f35d10c4245e8d8bdbb7f29dfe1f601bf.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\4ce57ad148a242a072958391708d382f35d10c4245e8d8bdbb7f29dfe1f601bf.exe

"C:\Users\Admin\AppData\Local\Temp\4ce57ad148a242a072958391708d382f35d10c4245e8d8bdbb7f29dfe1f601bf.exe"

C:\Windows\microsofthelp.exe

"C:\Windows\microsofthelp.exe"

Network

N/A

Files

memory/2340-0-0x0000000000400000-0x000000000040E000-memory.dmp

memory/2340-7-0x0000000000400000-0x000000000040E000-memory.dmp

C:\Windows\microsofthelp.exe

MD5 da7ebda3cce6558abcc1e4fe87a4846a
SHA1 b519d35454e0cbc09d496902ec63145e0b52161f
SHA256 ea6355401430a53b3360ba346365d7713a9e1a3d51acb5b4fbe8ba590c74fedf
SHA512 9c3cc6dd64c823fba4621e12ef359b8101fec185cefbd92e68c6a8d1f744842da6e60f4b1ac1d61f51c9ae136e9d533f2adbdd48fd62a980ef0f7d6736c7dc35

memory/1820-9-0x0000000000400000-0x000000000040E000-memory.dmp

memory/1820-11-0x0000000000400000-0x000000000040E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-02-26 22:47

Reported

2025-02-26 22:50

Platform

win10v2004-20250217-en

Max time kernel

149s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\4ce57ad148a242a072958391708d382f35d10c4245e8d8bdbb7f29dfe1f601bf.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\4ce57ad148a242a072958391708d382f35d10c4245e8d8bdbb7f29dfe1f601bf.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\microsofthelp.exe C:\Users\Admin\AppData\Local\Temp\4ce57ad148a242a072958391708d382f35d10c4245e8d8bdbb7f29dfe1f601bf.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\4ce57ad148a242a072958391708d382f35d10c4245e8d8bdbb7f29dfe1f601bf.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\4ce57ad148a242a072958391708d382f35d10c4245e8d8bdbb7f29dfe1f601bf.exe

"C:\Users\Admin\AppData\Local\Temp\4ce57ad148a242a072958391708d382f35d10c4245e8d8bdbb7f29dfe1f601bf.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 150.171.27.10:443 g.bing.com tcp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp
US 150.171.28.10:443 tse1.mm.bing.net tcp

Files

memory/3076-0-0x0000000000400000-0x000000000040E000-memory.dmp

C:\Windows\microsofthelp.exe

MD5 da7ebda3cce6558abcc1e4fe87a4846a
SHA1 b519d35454e0cbc09d496902ec63145e0b52161f
SHA256 ea6355401430a53b3360ba346365d7713a9e1a3d51acb5b4fbe8ba590c74fedf
SHA512 9c3cc6dd64c823fba4621e12ef359b8101fec185cefbd92e68c6a8d1f744842da6e60f4b1ac1d61f51c9ae136e9d533f2adbdd48fd62a980ef0f7d6736c7dc35

memory/3076-5-0x0000000000400000-0x000000000040E000-memory.dmp

memory/3408-7-0x0000000000400000-0x000000000040E000-memory.dmp