Malware Analysis Report

2024-11-16 13:39

Sample ID 240531-d6d5wsdg6y
Target XClient.rar
SHA256 fd3e6807f8eaed1b3ae4a229c6d17584f4985665973320342a2016b79e3ad87d
Tags
xworm execution persistence 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

fd3e6807f8eaed1b3ae4a229c6d17584f4985665973320342a2016b79e3ad87d

Threat Level: Known bad

The file XClient.rar was found to be: Known bad.

Malicious Activity Summary

xworm execution persistence rat trojan

Xworm family

Detect Xworm Payload

Xworm

Command and Scripting Interpreter: PowerShell

Adds Run key to start application

Unsigned PE

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-31 03:36

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 03:36

Reported

2024-05-31 03:39

Platform

win11-20240508-en

Max time kernel

146s

Max time network

149s

Command Line

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

Signatures

Detect Xworm Payload

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

Xworm

trojan rat xworm

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-3107365284-1576850094-161165143-1000\Software\Microsoft\Windows\CurrentVersion\Run\Expensive 3.1 = "C:\\Users\\Admin\\AppData\\Roaming\\Expensive 3.1.exe" C:\Users\Admin\AppData\Local\Temp\XClient.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\XClient.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\XClient.exe N/A

Suspicious use of SetWindowsHookEx

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

Processes

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

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

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\XClient.exe'

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\Expensive 3.1.exe'

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Expensive 3.1.exe'

Network

Country Destination Domain Proto
US 8.8.8.8:53 loss-winners.gl.at.ply.gg udp
US 147.185.221.19:61007 loss-winners.gl.at.ply.gg tcp
US 8.8.8.8:53 19.221.185.147.in-addr.arpa udp
US 147.185.221.19:61007 loss-winners.gl.at.ply.gg tcp
US 147.185.221.19:61007 loss-winners.gl.at.ply.gg tcp
US 147.185.221.19:61007 loss-winners.gl.at.ply.gg tcp
US 147.185.221.19:61007 loss-winners.gl.at.ply.gg tcp
US 147.185.221.19:61007 loss-winners.gl.at.ply.gg tcp
US 147.185.221.19:61007 loss-winners.gl.at.ply.gg tcp
US 147.185.221.19:61007 loss-winners.gl.at.ply.gg tcp
US 147.185.221.19:61007 loss-winners.gl.at.ply.gg tcp
US 147.185.221.19:61007 loss-winners.gl.at.ply.gg tcp

Files

memory/4432-0-0x00007FF836C73000-0x00007FF836C75000-memory.dmp

memory/4432-1-0x0000000000910000-0x0000000000928000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ry1n4ybj.gve.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/2076-7-0x00007FF836C70000-0x00007FF837732000-memory.dmp

memory/2076-12-0x000002E0CBD00000-0x000002E0CBD22000-memory.dmp

memory/2076-8-0x00007FF836C70000-0x00007FF837732000-memory.dmp

memory/2076-13-0x00007FF836C70000-0x00007FF837732000-memory.dmp

memory/2076-14-0x00007FF836C70000-0x00007FF837732000-memory.dmp

memory/2076-15-0x00007FF836C70000-0x00007FF837732000-memory.dmp

memory/2076-18-0x00007FF836C70000-0x00007FF837732000-memory.dmp

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

MD5 627073ee3ca9676911bee35548eff2b8
SHA1 4c4b68c65e2cab9864b51167d710aa29ebdcff2e
SHA256 85b280a39fc31ba1e15fb06102a05b8405ff3b82feb181d4170f04e466dd647c
SHA512 3c5f6c03e253b83c57e8d6f0334187dbdcdf4fa549eecd36cbc1322dca6d3ca891dc6a019c49ec2eafb88f82d0434299c31e4dfaab123acb42e0546218f311fb

C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

MD5 1a9fa92a4f2e2ec9e244d43a6a4f8fb9
SHA1 9910190edfaccece1dfcc1d92e357772f5dae8f7
SHA256 0ee052d5333fd5fd86bc84856fec98e045f077a7ac8051651bf7c521b9706888
SHA512 5d2361476fa22200e6f83883efe7dcb8c3fe7dae8d56e04e28a36e9ae1270c327b6aa161d92b239593da7661289d002c574446ecfd6bd19928209aae25e3ef64

C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

MD5 e47c3fa11e796c492a8388c946bf1636
SHA1 4a090378f0db26c6f019c9203f5b27f12fa865c7
SHA256 4bb861850395dcc3bec4691e8b9f0fa733b8a2d568d460a9201d65250b12fee1
SHA512 8d4af4eba3019cd060561f42cff11374eafe59da5e5ad677e41d0b9198b87d6d13706e760d13c70574ed1384993a1597f886d21fe6ecd0186379a1e93db30695

C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

MD5 050567a067ffea4eb40fe2eefebdc1ee
SHA1 6e1fb2c7a7976e0724c532449e97722787a00fec
SHA256 3952d5b543e5cb0cb84014f4ad9f5f1b7166f592d28640cbc3d914d0e6f41d2e
SHA512 341ad71ef7e850b10e229666312e4bca87a0ed9fe25ba4b0ab65661d5a0efa855db0592153106da07134d8fc2c6c0e44709bf38183c9a574a1fa543189971259

memory/4432-51-0x00007FF836C70000-0x00007FF837732000-memory.dmp

memory/4432-52-0x00007FF836C70000-0x00007FF837732000-memory.dmp

memory/4432-53-0x0000000000FD0000-0x0000000000FDC000-memory.dmp