Malware Analysis Report

2024-11-16 13:39

Sample ID 240531-jz262acg88
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

Xworm family

Xworm

Detect Xworm Payload

Command and Scripting Interpreter: PowerShell

Checks computer location settings

Drops startup file

Adds Run key to start application

Looks up external IP address via web service

Enumerates physical storage devices

Unsigned PE

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

Suspicious use of WriteProcessMemory

Suspicious behavior: EnumeratesProcesses

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-31 08:07

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

2024-05-31 08:07

Reported

2024-05-31 08:30

Platform

win10v2004-20240508-en

Max time kernel

597s

Max time network

598s

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-1-5-21-2804150937-2146708401-419095071-1000\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-1-5-21-2804150937-2146708401-419095071-1000\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'

Network

Country Destination Domain Proto
US 8.8.8.8:53 58.55.71.13.in-addr.arpa udp
US 8.8.8.8:53 138.107.17.2.in-addr.arpa udp
US 8.8.8.8:53 138.32.126.40.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 20.221.185.147.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 8.8.8.8:53 183.59.114.20.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.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 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 tse1.mm.bing.net udp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 88.156.103.20.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 8.8.8.8:53 100.58.20.217.in-addr.arpa udp
US 8.8.8.8:53 22.236.111.52.in-addr.arpa udp
NL 23.62.61.75:443 www.bing.com tcp
US 8.8.8.8:53 26.35.223.20.in-addr.arpa udp
US 8.8.8.8:53 75.61.62.23.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
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 isbn-employee.gl.at.ply.gg 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 8.8.8.8:53 171.117.168.52.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 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
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/4372-0-0x00007FFA19893000-0x00007FFA19895000-memory.dmp

memory/4372-1-0x0000000000CA0000-0x0000000000CB8000-memory.dmp

memory/4372-2-0x00007FFA19890000-0x00007FFA1A351000-memory.dmp

memory/1184-3-0x00007FFA19890000-0x00007FFA1A351000-memory.dmp

memory/1184-4-0x00007FFA19890000-0x00007FFA1A351000-memory.dmp

memory/1184-14-0x00000215A4F30000-0x00000215A4F52000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_lixiqlvz.o4q.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/1184-17-0x00007FFA19890000-0x00007FFA1A351000-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 3a6bad9528f8e23fb5c77fbd81fa28e8
SHA1 f127317c3bc6407f536c0f0600dcbcf1aabfba36
SHA256 986366767de5873f1b170a63f2a33ce05132d1afd90c8f5017afbca8ef1beb05
SHA512 846002154a0ece6f3e9feda6f115d3161dc21b3789525dd62ae1d9188495171293efdbe7be4710666dd8a15e66b557315b5a02918a741ed1d5f3ff0c515b98e2

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

MD5 110b59ca4d00786d0bde151d21865049
SHA1 557e730d93fdf944a0cad874022df1895fb5b2e2
SHA256 77f69011c214ea5a01fd2035d781914c4893aee66d784deadc22179eadfdf77f
SHA512 cb55ac6eca50f4427718bace861679c88b2fdfea94d30209e8d61ca73a6ce9f8c4b5334922d2660a829b0636d20cbdf3bae1497c920e604efe6c636019feb10e

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

MD5 46b170302a5821687d8c622f10947f27
SHA1 47a91ea3e248bd99dc87211be7e2844dda0687df
SHA256 e3cdd1b49dca63bf255aead7a7535cc6fc085425ff5ac48975d62c37af6a689e
SHA512 e6f9e562876591cb959d5650cf9ef1eb2a87d5a154bd5f8c37f6697c7fd48d959014bcb2aab96b9c41498a465e9d0f114be276514e2be59dcb019334e3dfe7cb

memory/4372-56-0x00007FFA19893000-0x00007FFA19895000-memory.dmp

memory/4372-57-0x00007FFA19890000-0x00007FFA1A351000-memory.dmp