Malware Analysis Report

2024-11-16 13:32

Sample ID 240527-skvcbahf34
Target XClient.exe
SHA256 fad7f858e34c269cddf27a915f2bd613697c9602dc639e6885f8e8379c61eb3c
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

fad7f858e34c269cddf27a915f2bd613697c9602dc639e6885f8e8379c61eb3c

Threat Level: Known bad

The file XClient.exe 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

Checks computer location settings

Adds Run key to start application

Unsigned PE

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Suspicious use of AdjustPrivilegeToken

Suspicious use of SetWindowsHookEx

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-27 15:11

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

2024-05-27 15:11

Reported

2024-05-27 15:46

Platform

win10v2004-20240508-en

Max time kernel

1774s

Max time network

1792s

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

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

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 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 g.bing.com udp
US 204.79.197.237:443 g.bing.com tcp
US 8.8.8.8:53 28.118.140.52.in-addr.arpa udp
US 8.8.8.8:53 18.24.18.2.in-addr.arpa udp
US 8.8.8.8:53 133.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 237.197.79.204.in-addr.arpa udp
NL 23.62.61.72:443 www.bing.com tcp
US 8.8.8.8:53 43.58.199.20.in-addr.arpa udp
US 8.8.8.8:53 72.61.62.23.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 primary-region.gl.at.ply.gg udp
US 147.185.221.19:65203 primary-region.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 56.126.166.20.in-addr.arpa udp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 8.8.8.8:53 58.99.105.20.in-addr.arpa udp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 8.8.8.8:53 25.24.18.2.in-addr.arpa udp
US 8.8.8.8:53 26.35.223.20.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 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 8.8.8.8:53 200.197.79.204.in-addr.arpa udp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 8.8.8.8:53 7.173.189.20.in-addr.arpa udp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 8.8.8.8:53 primary-region.gl.at.ply.gg udp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 8.8.8.8:53 primary-region.gl.at.ply.gg udp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 8.8.8.8:53 primary-region.gl.at.ply.gg udp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 8.8.8.8:53 primary-region.gl.at.ply.gg udp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 8.8.8.8:53 primary-region.gl.at.ply.gg udp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp
US 147.185.221.19:65203 primary-region.gl.at.ply.gg tcp

Files

memory/4820-0-0x00007FFBF0D83000-0x00007FFBF0D85000-memory.dmp

memory/4820-1-0x0000000000E40000-0x0000000000E5A000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ctlvm3zk.fwo.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/4804-2-0x00000213318D0000-0x00000213318F2000-memory.dmp

memory/4804-12-0x00007FFBF0D80000-0x00007FFBF1841000-memory.dmp

memory/4804-13-0x00007FFBF0D80000-0x00007FFBF1841000-memory.dmp

memory/4804-14-0x00007FFBF0D80000-0x00007FFBF1841000-memory.dmp

memory/4804-17-0x00007FFBF0D80000-0x00007FFBF1841000-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 2e907f77659a6601fcc408274894da2e
SHA1 9f5b72abef1cd7145bf37547cdb1b9254b4efe9d
SHA256 385da35673330e21ac02545220552fe301fe54dedefbdafc097ac4342a295233
SHA512 34fa0fff24f6550f55f828541aaefe5d75c86f8f0842d54b50065e9746f9662bb7209c74c9a9571540b9855bb3851f01db613190024e89b198d485bb5dc07721

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

MD5 ba169f4dcbbf147fe78ef0061a95e83b
SHA1 92a571a6eef49fff666e0f62a3545bcd1cdcda67
SHA256 5ef1421e19fde4bc03cd825dd7d6c0e7863f85fd8f0aa4a4d4f8d555dc7606d1
SHA512 8d2e5e552210dcda684682538bc964fdd8a8ff5b24cc2cc8af813729f0202191f98eb42d38d2355df17ae620fe401aad6ceaedaed3b112fdacd32485a3a0c07c

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

MD5 eb1ad317bd25b55b2bbdce8a28a74a94
SHA1 98a3978be4d10d62e7411946474579ee5bdc5ea6
SHA256 9e94e7c9ac6134ee30e79498558aa1a5a1ac79a643666c3f8922eed215dd3a98
SHA512 d011f266c0240d84470c0f9577cd9e4927309bd19bb38570ca9704ed8e1d159f9bea982a59d3eefef72ce7a10bd81208b82e88ef57c7af587f7437a89769adc0

memory/4820-53-0x00007FFBF0D80000-0x00007FFBF1841000-memory.dmp

memory/4820-54-0x00007FFBF0D83000-0x00007FFBF0D85000-memory.dmp

memory/4820-55-0x00007FFBF0D80000-0x00007FFBF1841000-memory.dmp