Malware Analysis Report

2025-04-03 13:25

Sample ID 241109-2lr31ssqgw
Target a8f60587f0610a0d584d8c763675f88c6b9d9ad804c674ae6c4e7a1e449dea9dN
SHA256 a8f60587f0610a0d584d8c763675f88c6b9d9ad804c674ae6c4e7a1e449dea9d
Tags
discovery persistence
score
7/10

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
7/10

SHA256

a8f60587f0610a0d584d8c763675f88c6b9d9ad804c674ae6c4e7a1e449dea9d

Threat Level: Shows suspicious behavior

The file a8f60587f0610a0d584d8c763675f88c6b9d9ad804c674ae6c4e7a1e449dea9dN was found to be: Shows suspicious behavior.

Malicious Activity Summary

discovery persistence

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

2024-11-09 22:40

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-09 22:40

Reported

2024-11-09 22:42

Platform

win7-20241010-en

Max time kernel

120s

Max time network

124s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a8f60587f0610a0d584d8c763675f88c6b9d9ad804c674ae6c4e7a1e449dea9dN.exe"

Signatures

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-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" C:\Users\Admin\AppData\Local\Temp\a8f60587f0610a0d584d8c763675f88c6b9d9ad804c674ae6c4e7a1e449dea9dN.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\microsofthelp.exe C:\Users\Admin\AppData\Local\Temp\a8f60587f0610a0d584d8c763675f88c6b9d9ad804c674ae6c4e7a1e449dea9dN.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\a8f60587f0610a0d584d8c763675f88c6b9d9ad804c674ae6c4e7a1e449dea9dN.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\a8f60587f0610a0d584d8c763675f88c6b9d9ad804c674ae6c4e7a1e449dea9dN.exe

"C:\Users\Admin\AppData\Local\Temp\a8f60587f0610a0d584d8c763675f88c6b9d9ad804c674ae6c4e7a1e449dea9dN.exe"

C:\Windows\microsofthelp.exe

"C:\Windows\microsofthelp.exe"

Network

N/A

Files

memory/2128-0-0x0000000000400000-0x000000000040E000-memory.dmp

C:\Windows\microsofthelp.exe

MD5 eb10dcecddf0f0df5f1a4f1900ec262c
SHA1 b5d0f7edc807cef0d9a5f6401142e8325ad7dc72
SHA256 fa44cfc13545c6f8f7f0a78e886b06d701f66716c5660c25b116c0ab2b6d7900
SHA512 83bc6821efb6dc3468e5a3333f347364d95713b759898efa106b55bfa1e4bc2d115c52415f538bde592fd5b9e1681a1fffd11b5bc9a3767a915174258dab8ef2

memory/2128-7-0x0000000000400000-0x000000000040E000-memory.dmp

memory/2496-10-0x0000000000400000-0x000000000040E000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-09 22:40

Reported

2024-11-09 22:42

Platform

win10v2004-20241007-en

Max time kernel

119s

Max time network

94s

Command Line

"C:\Users\Admin\AppData\Local\Temp\a8f60587f0610a0d584d8c763675f88c6b9d9ad804c674ae6c4e7a1e449dea9dN.exe"

Signatures

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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\microsofthelp = "C:\\Windows\\microsofthelp.exe" C:\Users\Admin\AppData\Local\Temp\a8f60587f0610a0d584d8c763675f88c6b9d9ad804c674ae6c4e7a1e449dea9dN.exe N/A

Drops file in Windows directory

Description Indicator Process Target
File created C:\Windows\HidePlugin.dll C:\Windows\microsofthelp.exe N/A
File created C:\Windows\microsofthelp.exe C:\Users\Admin\AppData\Local\Temp\a8f60587f0610a0d584d8c763675f88c6b9d9ad804c674ae6c4e7a1e449dea9dN.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\a8f60587f0610a0d584d8c763675f88c6b9d9ad804c674ae6c4e7a1e449dea9dN.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\a8f60587f0610a0d584d8c763675f88c6b9d9ad804c674ae6c4e7a1e449dea9dN.exe

"C:\Users\Admin\AppData\Local\Temp\a8f60587f0610a0d584d8c763675f88c6b9d9ad804c674ae6c4e7a1e449dea9dN.exe"

C:\Windows\microsofthelp.exe

"C:\Windows\microsofthelp.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 172.214.232.199.in-addr.arpa udp
US 8.8.8.8:53 196.249.167.52.in-addr.arpa udp
US 8.8.8.8:53 20.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 53.210.109.20.in-addr.arpa udp
US 8.8.8.8:53 18.31.95.13.in-addr.arpa udp
US 8.8.8.8:53 30.243.111.52.in-addr.arpa udp

Files

memory/1100-0-0x0000000000400000-0x000000000040E000-memory.dmp

C:\Windows\microsofthelp.exe

MD5 eb10dcecddf0f0df5f1a4f1900ec262c
SHA1 b5d0f7edc807cef0d9a5f6401142e8325ad7dc72
SHA256 fa44cfc13545c6f8f7f0a78e886b06d701f66716c5660c25b116c0ab2b6d7900
SHA512 83bc6821efb6dc3468e5a3333f347364d95713b759898efa106b55bfa1e4bc2d115c52415f538bde592fd5b9e1681a1fffd11b5bc9a3767a915174258dab8ef2

memory/1100-5-0x0000000000400000-0x000000000040E000-memory.dmp

memory/2208-7-0x0000000000400000-0x000000000040E000-memory.dmp

memory/2208-8-0x0000000000400000-0x000000000040E000-memory.dmp