Malware Analysis Report

2024-11-16 13:39

Sample ID 240530-ywcjjaha8x
Target XClient.exe
SHA256 e712b1e3a9313d86fce1ca310401f88e8fcda3c2b65ff9633613018bac09012f
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

e712b1e3a9313d86fce1ca310401f88e8fcda3c2b65ff9633613018bac09012f

Threat Level: Known bad

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

Malicious Activity Summary

xworm execution persistence rat trojan

Detect Xworm Payload

Xworm

Xworm family

Command and Scripting Interpreter: PowerShell

Checks computer location settings

Drops startup file

Looks up external IP address via web service

Adds Run key to start application

Enumerates physical storage devices

Unsigned PE

Suspicious use of SetWindowsHookEx

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-30 20:07

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

2024-05-30 20:07

Reported

2024-05-30 20:12

Platform

win10v2004-20240426-en

Max time kernel

299s

Max time network

300s

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

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\XClient.exe N/A

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\XClient.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\XClient.exe N/A

Adds Run key to start application

persistence
Description Indicator Process Target
Set value (str) \REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\XClient = "C:\\Users\\Admin\\AppData\\Roaming\\XClient.exe" C:\Users\Admin\AppData\Local\Temp\XClient.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 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\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\rundll32.exe

C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding

Network

Country Destination Domain Proto
US 8.8.8.8:53 13.86.106.20.in-addr.arpa udp
US 8.8.8.8:53 67.31.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 240.197.17.2.in-addr.arpa udp
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 1.112.95.208.in-addr.arpa udp
US 8.8.8.8:53 97.17.167.52.in-addr.arpa udp
US 8.8.8.8:53 isbn-employee.gl.at.ply.gg udp
US 147.185.221.20:4328 isbn-employee.gl.at.ply.gg tcp
US 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 15.164.165.52.in-addr.arpa udp
US 147.185.221.20:4328 isbn-employee.gl.at.ply.gg tcp
US 8.8.8.8:53 20.221.185.147.in-addr.arpa udp
US 147.185.221.20:4328 isbn-employee.gl.at.ply.gg tcp
US 8.8.8.8:53 83.210.23.2.in-addr.arpa udp
US 147.185.221.20:4328 isbn-employee.gl.at.ply.gg tcp
US 147.185.221.20:4328 isbn-employee.gl.at.ply.gg tcp
US 147.185.221.20:4328 isbn-employee.gl.at.ply.gg tcp
US 147.185.221.20:4328 isbn-employee.gl.at.ply.gg tcp
US 8.8.8.8:53 11.227.111.52.in-addr.arpa udp
US 147.185.221.20:4328 isbn-employee.gl.at.ply.gg tcp
US 147.185.221.20:4328 isbn-employee.gl.at.ply.gg tcp
US 147.185.221.20:4328 isbn-employee.gl.at.ply.gg tcp
US 147.185.221.20:4328 isbn-employee.gl.at.ply.gg tcp
US 147.185.221.20:4328 isbn-employee.gl.at.ply.gg tcp
US 147.185.221.20:4328 isbn-employee.gl.at.ply.gg tcp
US 147.185.221.20:4328 isbn-employee.gl.at.ply.gg tcp
US 147.185.221.20:4328 isbn-employee.gl.at.ply.gg tcp
US 8.8.8.8:53 11.179.89.13.in-addr.arpa udp
US 147.185.221.20:4328 isbn-employee.gl.at.ply.gg tcp
US 147.185.221.20:4328 isbn-employee.gl.at.ply.gg tcp
US 147.185.221.20:4328 isbn-employee.gl.at.ply.gg tcp
US 147.185.221.20:4328 isbn-employee.gl.at.ply.gg tcp
US 147.185.221.20:4328 isbn-employee.gl.at.ply.gg tcp
US 147.185.221.20:4328 isbn-employee.gl.at.ply.gg tcp
US 147.185.221.20:4328 isbn-employee.gl.at.ply.gg tcp
US 147.185.221.20:4328 isbn-employee.gl.at.ply.gg tcp
US 147.185.221.20:4328 isbn-employee.gl.at.ply.gg tcp
US 147.185.221.20:4328 isbn-employee.gl.at.ply.gg tcp
US 147.185.221.20:4328 isbn-employee.gl.at.ply.gg tcp
US 147.185.221.20:4328 isbn-employee.gl.at.ply.gg tcp
US 147.185.221.20:4328 isbn-employee.gl.at.ply.gg tcp
US 147.185.221.20:4328 isbn-employee.gl.at.ply.gg tcp
US 147.185.221.20:4328 isbn-employee.gl.at.ply.gg tcp
US 147.185.221.20:4328 isbn-employee.gl.at.ply.gg tcp
US 147.185.221.20:4328 isbn-employee.gl.at.ply.gg tcp
US 147.185.221.20:4328 isbn-employee.gl.at.ply.gg tcp
US 147.185.221.20:4328 isbn-employee.gl.at.ply.gg tcp

Files

memory/4228-0-0x00007FFF0F373000-0x00007FFF0F375000-memory.dmp

memory/4228-1-0x00000000003B0000-0x00000000003C8000-memory.dmp

memory/4228-2-0x00007FFF0F370000-0x00007FFF0FE31000-memory.dmp

memory/3168-3-0x00007FFF0F370000-0x00007FFF0FE31000-memory.dmp

memory/3168-14-0x00007FFF0F370000-0x00007FFF0FE31000-memory.dmp

memory/3168-13-0x00000143FD840000-0x00000143FD862000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_20ktsyur.fda.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/3168-15-0x00007FFF0F370000-0x00007FFF0FE31000-memory.dmp

memory/3168-18-0x00007FFF0F370000-0x00007FFF0FE31000-memory.dmp

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

MD5 d85ba6ff808d9e5444a4b369f5bc2730
SHA1 31aa9d96590fff6981b315e0b391b575e4c0804a
SHA256 84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
SHA512 8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

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

MD5 6d42b6da621e8df5674e26b799c8e2aa
SHA1 ab3ce1327ea1eeedb987ec823d5e0cb146bafa48
SHA256 5ab6a1726f425c6d0158f55eb8d81754ddedd51e651aa0a899a29b7a58619c4c
SHA512 53faffbda8a835bc1143e894c118c15901a5fd09cfc2224dd2f754c06dc794897315049a579b9a8382d4564f071576045aaaf824019b7139d939152dca38ce29

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

MD5 34f595487e6bfd1d11c7de88ee50356a
SHA1 4caad088c15766cc0fa1f42009260e9a02f953bb
SHA256 0f9a4b52e01cb051052228a55d0515911b7ef5a8db3cf925528c746df511424d
SHA512 10976c5deaf9fac449e703e852c3b08d099f430de2d7c7b8e2525c35d63e28b890e5aab63feff9b20bca0aaf9f35a3ba411aee3fbeee9ea59f90ed25bd617a0b

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

MD5 a7cc007980e419d553568a106210549a
SHA1 c03099706b75071f36c3962fcc60a22f197711e0
SHA256 a5735921fc72189c8bf577f3911486cf031708dc8d6bc764fe3e593c0a053165
SHA512 b9aaf29403c467daef80a1ae87478afc33b78f4e1ca16189557011bb83cf9b3e29a0f85c69fa209c45201fb28baca47d31756eee07b79c6312c506e8370f7666

memory/4228-57-0x00007FFF0F373000-0x00007FFF0F375000-memory.dmp

memory/4228-58-0x00007FFF0F370000-0x00007FFF0FE31000-memory.dmp