Malware Analysis Report

2024-11-16 13:39

Sample ID 240530-ytvmbsha6w
Target XClient.rar
SHA256 ab8aa97f54ec8ae1deec093c74bf1c367460da755fdf0c93148b402d933e6e7f
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

ab8aa97f54ec8ae1deec093c74bf1c367460da755fdf0c93148b402d933e6e7f

Threat Level: Known bad

The file XClient.rar 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

Drops startup file

Checks computer location settings

Adds Run key to start application

Looks up external IP address via web service

Unsigned PE

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Suspicious use of SetWindowsHookEx

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-30 20:05

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 20:05

Reported

2024-05-30 20:10

Platform

win10v2004-20240508-en

Max time kernel

298s

Max time network

305s

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-1-5-21-4124900551-4068476067-3491212533-1000\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-1-5-21-4124900551-4068476067-3491212533-1000\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 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 14.160.190.20.in-addr.arpa udp
BE 2.17.196.91:443 www.bing.com tcp
US 8.8.8.8:53 55.36.223.20.in-addr.arpa udp
US 8.8.8.8:53 183.142.211.20.in-addr.arpa udp
US 8.8.8.8:53 91.196.17.2.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 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 86.23.85.13.in-addr.arpa udp
US 8.8.8.8:53 56.126.166.20.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 8.8.8.8:53 11.227.111.52.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 204.79.197.200:443 tse1.mm.bing.net tcp
US 8.8.8.8:53 200.197.79.204.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 8.179.89.13.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 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/2356-0-0x00007FFFBA453000-0x00007FFFBA455000-memory.dmp

memory/2356-1-0x0000000000EE0000-0x0000000000EF8000-memory.dmp

memory/2356-2-0x00007FFFBA450000-0x00007FFFBAF11000-memory.dmp

memory/1852-8-0x000001B62B0B0000-0x000001B62B0D2000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_1sdyxu0z.54c.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/1852-13-0x00007FFFBA450000-0x00007FFFBAF11000-memory.dmp

memory/1852-14-0x00007FFFBA450000-0x00007FFFBAF11000-memory.dmp

memory/1852-15-0x00007FFFBA450000-0x00007FFFBAF11000-memory.dmp

memory/1852-18-0x00007FFFBA450000-0x00007FFFBAF11000-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 d28a889fd956d5cb3accfbaf1143eb6f
SHA1 157ba54b365341f8ff06707d996b3635da8446f7
SHA256 21e5d7ccf80a293e6ba30ed728846ca19c929c52b96e2c8d34e27cd2234f1d45
SHA512 0b6d88deb9be85722e6a78d5886d49f2caf407a59e128d2b4ed74c1356f9928c40048a62731959f2460e9ff9d9feee311043d2a37abe3bb92c2b76a44281478c

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

MD5 4c513fe7261cbb0fd7ec5d03873693d6
SHA1 360d69bf9f5ba328d5f039f4802b2546ac346c4b
SHA256 4dc40c8efd2b217c5552937c9fd2b7ac00bc30ac50a81526ab6655278c5a4dc9
SHA512 8c0fbffdfc5003e06c7ae0b53052b3478fbd7e2e1b9028db12248383535d04dcfeb80069295e48c5e0ec60504f45610b7bd944b8852cada005a590660caa04d5

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

MD5 96e3b86880fedd5afc001d108732a3e5
SHA1 8fc17b39d744a9590a6d5897012da5e6757439a3
SHA256 c3077e4cadb4ed246c02abe55aa6cf832fee4c2546b7addb7d22cd1c7c8c1294
SHA512 909b1968f7204fa7029109b02232d8cc5438f6b4dc7c9044e4e47c59fcee538199b13029e36592b12ed573d48a308dd4822d2ced4129ab08d4111897e02be55d

memory/2356-57-0x00007FFFBA453000-0x00007FFFBA455000-memory.dmp

memory/2356-58-0x00007FFFBA450000-0x00007FFFBAF11000-memory.dmp