Malware Analysis Report

2025-08-11 00:33

Sample ID 240328-2yb8bsba8y
Target DOTNET.exe
SHA256 d54acc32db5c2b13907576ba94065b387ba153cb1c8ba9ac1d7ebc715e5a17cc
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

d54acc32db5c2b13907576ba94065b387ba153cb1c8ba9ac1d7ebc715e5a17cc

Threat Level: Known bad

The file DOTNET.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 behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-03-28 22:58

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

2024-03-28 22:58

Reported

2024-03-28 23:01

Platform

win7-20240215-en

Max time kernel

122s

Max time network

122s

Command Line

"C:\Users\Admin\AppData\Local\Temp\DOTNET.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\DOTNET.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\DOTNET.exe N/A

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

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

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of SetWindowsHookEx

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

Processes

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

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

Network

N/A

Files

memory/2308-0-0x0000000000FA0000-0x0000000000FB6000-memory.dmp

memory/2308-1-0x000007FEF5280000-0x000007FEF5C6C000-memory.dmp

memory/2308-6-0x0000000000640000-0x00000000006C0000-memory.dmp

memory/2308-7-0x000007FEF5280000-0x000007FEF5C6C000-memory.dmp

memory/2308-8-0x0000000000640000-0x00000000006C0000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-03-28 22:58

Reported

2024-03-28 23:01

Platform

win10v2004-20240226-en

Max time kernel

120s

Max time network

100s

Command Line

"C:\Users\Admin\AppData\Local\Temp\DOTNET.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\DOTNET.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\DOTNET.exe N/A

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

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

Suspicious use of AdjustPrivilegeToken

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

Suspicious use of SetWindowsHookEx

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

Processes

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

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

Network

Country Destination Domain Proto
US 8.8.8.8:53 228.249.119.40.in-addr.arpa udp
US 8.8.8.8:53 40.134.221.88.in-addr.arpa udp
US 8.8.8.8:53 17.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 26.165.165.52.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 218.135.221.88.in-addr.arpa udp
US 52.111.229.43:443 tcp
US 8.8.8.8:53 19.229.111.52.in-addr.arpa udp

Files

memory/3316-0-0x0000000000240000-0x0000000000256000-memory.dmp

memory/3316-1-0x00007FFD24B50000-0x00007FFD25611000-memory.dmp

memory/3316-6-0x0000000000BE0000-0x0000000000BF0000-memory.dmp

memory/3316-7-0x00007FFD24B50000-0x00007FFD25611000-memory.dmp

memory/3316-8-0x0000000000BE0000-0x0000000000BF0000-memory.dmp