Malware Analysis Report

2025-06-16 07:06

Sample ID 240531-tarn4sdg75
Target Clustertruck.exe
SHA256 8975bb39ab3a37f2134b2c3795391927abc3bb77d3531957edf6449e1ac2ca06
Tags
score
6/10

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
6/10

SHA256

8975bb39ab3a37f2134b2c3795391927abc3bb77d3531957edf6449e1ac2ca06

Threat Level: Shows suspicious behavior

The file Clustertruck.exe was found to be: Shows suspicious behavior.

Malicious Activity Summary


Drops desktop.ini file(s)

Unsigned PE

Modifies registry class

Suspicious use of SetWindowsHookEx

Checks processor information in registry

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-31 15:51

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-31 15:51

Reported

2024-05-31 15:52

Platform

win7-20240221-en

Max time kernel

3s

Max time network

1s

Command Line

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

Signatures

N/A

Processes

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

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

Network

N/A

Files

N/A

Analysis: behavioral2

Detonation Overview

Submitted

2024-05-31 15:51

Reported

2024-05-31 15:52

Platform

win10v2004-20240426-en

Max time kernel

30s

Max time network

28s

Command Line

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

Signatures

Drops desktop.ini file(s)

Description Indicator Process Target
File opened for modification C:\Users\Admin\Videos\Captures\desktop.ini C:\Windows\system32\svchost.exe N/A

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 C:\Windows\system32\svchost.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Windows\system32\svchost.exe N/A
Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 C:\Windows\system32\svchost.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString C:\Windows\system32\svchost.exe N/A

Modifies registry class

Description Indicator Process Target
Key created \REGISTRY\MACHINE\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\Deployment\Package\*\S-1-5-21-711569230-3659488422-571408806-1000\{FA2971F4-A929-4533-805A-5934C1B08B26} C:\Windows\system32\svchost.exe N/A
Key created \REGISTRY\MACHINE\Software\Classes\Local Settings\Software\Microsoft\Windows\CurrentVersion\AppModel\Deployment\Package\*\S-1-5-21-711569230-3659488422-571408806-1000\{DCC50F02-160D-40E0-9D8C-116780228458} C:\Windows\system32\svchost.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\system32\OpenWith.exe N/A

Processes

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

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

C:\Windows\System32\GameBarPresenceWriter.exe

"C:\Windows\System32\GameBarPresenceWriter.exe" -ServerName:Windows.Gaming.GameBar.Internal.PresenceWriterServer

C:\Windows\system32\OpenWith.exe

C:\Windows\system32\OpenWith.exe -Embedding

C:\Windows\system32\svchost.exe

C:\Windows\system32\svchost.exe -k BcastDVRUserService -s BcastDVRUserService

C:\Windows\system32\svchost.exe

C:\Windows\system32\svchost.exe -k BcastDVRUserService -s BcastDVRUserService

Network

Country Destination Domain Proto
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 133.211.185.52.in-addr.arpa udp
US 8.8.8.8:53 241.150.49.20.in-addr.arpa udp
NL 52.142.223.178:80 tcp
US 8.8.8.8:53 udp
N/A 13.85.23.86:443 tcp

Files

C:\Users\Admin\Videos\Captures\desktop.ini

MD5 b0d27eaec71f1cd73b015f5ceeb15f9d
SHA1 62264f8b5c2f5034a1e4143df6e8c787165fbc2f
SHA256 86d9f822aeb989755fac82929e8db369b3f5f04117ef96fd76e3d5f920a501d2
SHA512 7b5c9783a0a14b600b156825639d24cbbc000f5066c48ce9fecc195255603fc55129aaaca336d7ce6ad4e941d5492b756562f2c7a1d151fcfc2dabac76f3946c