Malware Analysis Report

2024-09-11 13:53

Sample ID 240615-pvvjaavckn
Target nigg.exe
SHA256 673ebb2e9da64c5b50d99d64eef3a0cd194791061919d29ba006b563821ce7c1
Tags
xworm rat trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

673ebb2e9da64c5b50d99d64eef3a0cd194791061919d29ba006b563821ce7c1

Threat Level: Known bad

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

Malicious Activity Summary

xworm rat trojan

Detect Xworm Payload

Xworm family

Xworm

Drops startup file

Unsigned PE

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Persistence
TA0003
Privilege Escalation
TA0004
Defense Evasion
TA0005
Credential Access
TA0006
Discovery
TA0007
System Information Discovery
T1082
Lateral Movement
TA0008
Collection
TA0009
Exfiltration
TA0010
Command and Control
TA0011
Impact
TA0040
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2024-06-15 12:39

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

2024-06-15 12:39

Reported

2024-06-15 12:44

Platform

win11-20240508-en

Max time kernel

41s

Max time network

50s

Command Line

"C:\Users\Admin\AppData\Local\Temp\nigg.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\XClient.lnk C:\Users\Admin\AppData\Local\Temp\nigg.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk C:\Users\Admin\AppData\Local\Temp\nigg.exe N/A

Enumerates physical storage devices

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\MiniSearchHost.exe N/A

Processes

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

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

C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\MiniSearchHost.exe

"C:\Windows\SystemApps\MicrosoftWindows.Client.CBS_cw5n1h2txyewy\MiniSearchHost.exe" -ServerName:MiniSearchUI.AppXj3y73at8fy1htwztzxs68sxx1v7cksp7.mca

C:\Windows\system32\svchost.exe

C:\Windows\system32\svchost.exe -k LocalService -p -s NPSMSvc

Network

Country Destination Domain Proto
GB 2.18.66.73:443 tcp
US 8.8.8.8:53 browser.pipe.aria.microsoft.com udp
US 8.8.8.8:53 modern-educators.gl.at.ply.gg udp
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 cxcs.microsoft.net udp

Files

memory/1352-0-0x00007FFEDA373000-0x00007FFEDA375000-memory.dmp

memory/1352-1-0x0000000000BC0000-0x0000000000BD0000-memory.dmp

memory/1352-6-0x00007FFEDA370000-0x00007FFEDAE32000-memory.dmp

memory/1352-7-0x00007FFEDA373000-0x00007FFEDA375000-memory.dmp

memory/1352-8-0x00007FFEDA370000-0x00007FFEDAE32000-memory.dmp