Malware Analysis Report

2025-06-15 19:58

Sample ID 250226-1dn6qavkw2
Target 2e0ea4c17b8a3453f1f980a4769836df5c59e76d7a475734744a13dff09dd51a
SHA256 2e0ea4c17b8a3453f1f980a4769836df5c59e76d7a475734744a13dff09dd51a
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

2e0ea4c17b8a3453f1f980a4769836df5c59e76d7a475734744a13dff09dd51a

Threat Level: Known bad

The file 2e0ea4c17b8a3453f1f980a4769836df5c59e76d7a475734744a13dff09dd51a 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

Unsigned PE

System Location Discovery: System Language Discovery

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2025-02-26 21:32

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2025-02-26 21:32

Reported

2025-02-26 21:34

Platform

win7-20240903-en

Max time kernel

149s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2e0ea4c17b8a3453f1f980a4769836df5c59e76d7a475734744a13dff09dd51a.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\2e0ea4c17b8a3453f1f980a4769836df5c59e76d7a475734744a13dff09dd51a.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\microsofthelp.exe C:\Users\Admin\AppData\Local\Temp\2e0ea4c17b8a3453f1f980a4769836df5c59e76d7a475734744a13dff09dd51a.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\2e0ea4c17b8a3453f1f980a4769836df5c59e76d7a475734744a13dff09dd51a.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\2e0ea4c17b8a3453f1f980a4769836df5c59e76d7a475734744a13dff09dd51a.exe

"C:\Users\Admin\AppData\Local\Temp\2e0ea4c17b8a3453f1f980a4769836df5c59e76d7a475734744a13dff09dd51a.exe"

C:\Windows\microsofthelp.exe

"C:\Windows\microsofthelp.exe"

Network

N/A

Files

memory/604-0-0x0000000000400000-0x000000000040E000-memory.dmp

memory/604-3-0x0000000000220000-0x000000000022E000-memory.dmp

C:\Windows\microsofthelp.exe

MD5 893466742c79b2c111ed11de2d53eaa9
SHA1 211402895946beca762bb5d6461bb82ccbe4274e
SHA256 19aca5eb431dcd29a5be714db9d4723c13aa180b4fdef0a704644c47093c0586
SHA512 4393d917cb4fd3231c42f1df569268395dd281e16833c402fcddbf9c32c3b2364e72e7267e553c5176f86099caf2886e2a8976c8f52d3f37b5e05eab695d29df

memory/1692-9-0x0000000000400000-0x000000000040E000-memory.dmp

memory/1692-11-0x0000000000400000-0x000000000040E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2025-02-26 21:32

Reported

2025-02-26 21:34

Platform

win10v2004-20250217-en

Max time kernel

149s

Max time network

148s

Command Line

"C:\Users\Admin\AppData\Local\Temp\2e0ea4c17b8a3453f1f980a4769836df5c59e76d7a475734744a13dff09dd51a.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-1-5-21-1294999112-580688058-1763548717-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" C:\Users\Admin\AppData\Local\Temp\2e0ea4c17b8a3453f1f980a4769836df5c59e76d7a475734744a13dff09dd51a.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\microsofthelp.exe C:\Users\Admin\AppData\Local\Temp\2e0ea4c17b8a3453f1f980a4769836df5c59e76d7a475734744a13dff09dd51a.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\2e0ea4c17b8a3453f1f980a4769836df5c59e76d7a475734744a13dff09dd51a.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\2e0ea4c17b8a3453f1f980a4769836df5c59e76d7a475734744a13dff09dd51a.exe

"C:\Users\Admin\AppData\Local\Temp\2e0ea4c17b8a3453f1f980a4769836df5c59e76d7a475734744a13dff09dd51a.exe"

C:\Windows\microsofthelp.exe

"C:\Windows\microsofthelp.exe"

Network

Country Destination Domain Proto
GB 92.123.128.168:443 www.bing.com tcp
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

Files

memory/5648-0-0x0000000000400000-0x000000000040E000-memory.dmp

C:\Windows\microsofthelp.exe

MD5 893466742c79b2c111ed11de2d53eaa9
SHA1 211402895946beca762bb5d6461bb82ccbe4274e
SHA256 19aca5eb431dcd29a5be714db9d4723c13aa180b4fdef0a704644c47093c0586
SHA512 4393d917cb4fd3231c42f1df569268395dd281e16833c402fcddbf9c32c3b2364e72e7267e553c5176f86099caf2886e2a8976c8f52d3f37b5e05eab695d29df

memory/5648-6-0x0000000000400000-0x000000000040E000-memory.dmp

memory/1496-7-0x0000000000400000-0x000000000040E000-memory.dmp