Malware Analysis Report

2024-11-16 13:42

Sample ID 240601-e7wxrsaf93
Target 86c8da270e82ac4d2e27ac6ec56d7dd1df44d2bcb9ce22e008d9647fdba87243
SHA256 86c8da270e82ac4d2e27ac6ec56d7dd1df44d2bcb9ce22e008d9647fdba87243
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: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

86c8da270e82ac4d2e27ac6ec56d7dd1df44d2bcb9ce22e008d9647fdba87243

Threat Level: Known bad

The file 86c8da270e82ac4d2e27ac6ec56d7dd1df44d2bcb9ce22e008d9647fdba87243 was found to be: Known bad.

Malicious Activity Summary

xworm rat trojan

Detect Xworm Payload

Xworm

Uses the VBS compiler for execution

Suspicious use of SetThreadContext

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Script User-Agent

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-06-01 04:35

Signatures

Unsigned PE

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

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-01 04:35

Reported

2024-06-01 04:38

Platform

win10v2004-20240426-en

Max time kernel

145s

Max time network

150s

Command Line

"C:\Users\Admin\AppData\Local\Temp\86c8da270e82ac4d2e27ac6ec56d7dd1df44d2bcb9ce22e008d9647fdba87243.exe"

Signatures

Detect Xworm Payload

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

Xworm

trojan rat xworm

Uses the VBS compiler for execution

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 4228 set thread context of 2608 N/A C:\Users\Admin\AppData\Local\Temp\86c8da270e82ac4d2e27ac6ec56d7dd1df44d2bcb9ce22e008d9647fdba87243.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe

Script User-Agent

Description Indicator Process Target
HTTP User-Agent header Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) N/A N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\86c8da270e82ac4d2e27ac6ec56d7dd1df44d2bcb9ce22e008d9647fdba87243.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4228 wrote to memory of 2608 N/A C:\Users\Admin\AppData\Local\Temp\86c8da270e82ac4d2e27ac6ec56d7dd1df44d2bcb9ce22e008d9647fdba87243.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 4228 wrote to memory of 2608 N/A C:\Users\Admin\AppData\Local\Temp\86c8da270e82ac4d2e27ac6ec56d7dd1df44d2bcb9ce22e008d9647fdba87243.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 4228 wrote to memory of 2608 N/A C:\Users\Admin\AppData\Local\Temp\86c8da270e82ac4d2e27ac6ec56d7dd1df44d2bcb9ce22e008d9647fdba87243.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 4228 wrote to memory of 2608 N/A C:\Users\Admin\AppData\Local\Temp\86c8da270e82ac4d2e27ac6ec56d7dd1df44d2bcb9ce22e008d9647fdba87243.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 4228 wrote to memory of 2608 N/A C:\Users\Admin\AppData\Local\Temp\86c8da270e82ac4d2e27ac6ec56d7dd1df44d2bcb9ce22e008d9647fdba87243.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 4228 wrote to memory of 2608 N/A C:\Users\Admin\AppData\Local\Temp\86c8da270e82ac4d2e27ac6ec56d7dd1df44d2bcb9ce22e008d9647fdba87243.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 4228 wrote to memory of 2608 N/A C:\Users\Admin\AppData\Local\Temp\86c8da270e82ac4d2e27ac6ec56d7dd1df44d2bcb9ce22e008d9647fdba87243.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 4228 wrote to memory of 2608 N/A C:\Users\Admin\AppData\Local\Temp\86c8da270e82ac4d2e27ac6ec56d7dd1df44d2bcb9ce22e008d9647fdba87243.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe

Processes

C:\Users\Admin\AppData\Local\Temp\86c8da270e82ac4d2e27ac6ec56d7dd1df44d2bcb9ce22e008d9647fdba87243.exe

"C:\Users\Admin\AppData\Local\Temp\86c8da270e82ac4d2e27ac6ec56d7dd1df44d2bcb9ce22e008d9647fdba87243.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"

Network

Country Destination Domain Proto
LT 176.223.130.167:80 176.223.130.167 tcp
US 8.8.8.8:53 167.130.223.176.in-addr.arpa udp
US 8.8.8.8:53 104.219.191.52.in-addr.arpa udp
US 8.8.8.8:53 91.90.14.23.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
NL 41.216.183.101:7000 tcp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 206.23.85.13.in-addr.arpa udp
NL 41.216.183.101:7000 tcp
NL 41.216.183.101:7000 tcp
US 8.8.8.8:53 203.107.17.2.in-addr.arpa udp
NL 41.216.183.101:7000 tcp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 31.243.111.52.in-addr.arpa udp
NL 41.216.183.101:7000 tcp
NL 41.216.183.101:7000 tcp

Files

memory/2608-2-0x0000000000400000-0x000000000040E000-memory.dmp

memory/2608-3-0x00000000749EE000-0x00000000749EF000-memory.dmp

memory/2608-4-0x00000000058B0000-0x000000000594C000-memory.dmp

memory/2608-5-0x00000000749E0000-0x0000000075190000-memory.dmp

memory/2608-6-0x00000000749EE000-0x00000000749EF000-memory.dmp

memory/2608-7-0x00000000749E0000-0x0000000075190000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-01 04:35

Reported

2024-06-01 04:38

Platform

win11-20240508-en

Max time kernel

149s

Max time network

145s

Command Line

"C:\Users\Admin\AppData\Local\Temp\86c8da270e82ac4d2e27ac6ec56d7dd1df44d2bcb9ce22e008d9647fdba87243.exe"

Signatures

Detect Xworm Payload

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

Xworm

trojan rat xworm

Uses the VBS compiler for execution

Suspicious use of SetThreadContext

Description Indicator Process Target
PID 540 set thread context of 3608 N/A C:\Users\Admin\AppData\Local\Temp\86c8da270e82ac4d2e27ac6ec56d7dd1df44d2bcb9ce22e008d9647fdba87243.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe

Script User-Agent

Description Indicator Process Target
HTTP User-Agent header Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) N/A N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe N/A

Suspicious use of SetWindowsHookEx

Description Indicator Process Target
N/A N/A C:\Users\Admin\AppData\Local\Temp\86c8da270e82ac4d2e27ac6ec56d7dd1df44d2bcb9ce22e008d9647fdba87243.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 540 wrote to memory of 3608 N/A C:\Users\Admin\AppData\Local\Temp\86c8da270e82ac4d2e27ac6ec56d7dd1df44d2bcb9ce22e008d9647fdba87243.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 540 wrote to memory of 3608 N/A C:\Users\Admin\AppData\Local\Temp\86c8da270e82ac4d2e27ac6ec56d7dd1df44d2bcb9ce22e008d9647fdba87243.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 540 wrote to memory of 3608 N/A C:\Users\Admin\AppData\Local\Temp\86c8da270e82ac4d2e27ac6ec56d7dd1df44d2bcb9ce22e008d9647fdba87243.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 540 wrote to memory of 3608 N/A C:\Users\Admin\AppData\Local\Temp\86c8da270e82ac4d2e27ac6ec56d7dd1df44d2bcb9ce22e008d9647fdba87243.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 540 wrote to memory of 3608 N/A C:\Users\Admin\AppData\Local\Temp\86c8da270e82ac4d2e27ac6ec56d7dd1df44d2bcb9ce22e008d9647fdba87243.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 540 wrote to memory of 3608 N/A C:\Users\Admin\AppData\Local\Temp\86c8da270e82ac4d2e27ac6ec56d7dd1df44d2bcb9ce22e008d9647fdba87243.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 540 wrote to memory of 3608 N/A C:\Users\Admin\AppData\Local\Temp\86c8da270e82ac4d2e27ac6ec56d7dd1df44d2bcb9ce22e008d9647fdba87243.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
PID 540 wrote to memory of 3608 N/A C:\Users\Admin\AppData\Local\Temp\86c8da270e82ac4d2e27ac6ec56d7dd1df44d2bcb9ce22e008d9647fdba87243.exe C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe

Processes

C:\Users\Admin\AppData\Local\Temp\86c8da270e82ac4d2e27ac6ec56d7dd1df44d2bcb9ce22e008d9647fdba87243.exe

"C:\Users\Admin\AppData\Local\Temp\86c8da270e82ac4d2e27ac6ec56d7dd1df44d2bcb9ce22e008d9647fdba87243.exe"

C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe

"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"

Network

Country Destination Domain Proto
LT 176.223.130.167:80 176.223.130.167 tcp
US 8.8.8.8:53 167.130.223.176.in-addr.arpa udp
NL 41.216.183.101:7000 tcp
NL 41.216.183.101:7000 tcp
NL 41.216.183.101:7000 tcp
US 52.111.229.43:443 tcp
NL 41.216.183.101:7000 tcp
NL 41.216.183.101:7000 tcp

Files

memory/3608-2-0x0000000000400000-0x000000000040E000-memory.dmp

memory/3608-3-0x0000000073F8E000-0x0000000073F8F000-memory.dmp

memory/3608-4-0x0000000005830000-0x00000000058CC000-memory.dmp

memory/3608-5-0x0000000073F80000-0x0000000074731000-memory.dmp

memory/3608-6-0x0000000073F8E000-0x0000000073F8F000-memory.dmp

memory/3608-7-0x0000000073F80000-0x0000000074731000-memory.dmp