Malware Analysis Report

2024-11-16 13:39

Sample ID 240531-h9kjasbb21
Target Nexus.exe
SHA256 960c31ec0fad0f80d726d3a91d9bbbc68c34c09a60f9381a87a589eee8814133
Tags
xworm rat 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 Overview

score
10/10

SHA256

960c31ec0fad0f80d726d3a91d9bbbc68c34c09a60f9381a87a589eee8814133

Threat Level: Known bad

The file Nexus.exe was found to be: Known bad.

Malicious Activity Summary

xworm rat trojan

Detect Xworm Payload

Xworm family

Xworm

Drops startup file

Looks up external IP address via web service

Unsigned PE

Enumerates physical storage devices

Suspicious use of SetWindowsHookEx

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-31 07:26

Signatures

Detect Xworm Payload

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

Xworm family

xworm

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-05-31 07:26

Reported

2024-05-31 07:26

Platform

win11-20240426-en

Max time kernel

9s

Max time network

13s

Command Line

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

Signatures

Detect Xworm Payload

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

Xworm

trojan rat xworm

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\csrss.lnk C:\Users\Admin\AppData\Local\Temp\Nexus.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\csrss.lnk C:\Users\Admin\AppData\Local\Temp\Nexus.exe N/A

Looks up external IP address via web service

Description Indicator Process Target
N/A ip-api.com N/A N/A

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Nexus.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Nexus.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Nexus.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\Nexus.exe N/A

Processes

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 ip-api.com udp
US 208.95.112.1:80 ip-api.com tcp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
TH 85.203.4.69:1999 tcp

Files

memory/5000-0-0x00007FFBD6B93000-0x00007FFBD6B95000-memory.dmp

memory/5000-1-0x0000000000110000-0x0000000000120000-memory.dmp

memory/5000-2-0x00007FFBD6B90000-0x00007FFBD7652000-memory.dmp