Malware Analysis Report

2024-11-16 13:39

Sample ID 240530-l5ec9sdg8v
Target Xclient.exe
SHA256 f691af29880a23440b65782116124cbdfe8ea9d58ed103f33f15a89b0952b13a
Tags
xworm execution 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

f691af29880a23440b65782116124cbdfe8ea9d58ed103f33f15a89b0952b13a

Threat Level: Known bad

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

Malicious Activity Summary

xworm execution rat trojan

Xworm

Detect Xworm Payload

Xworm family

Command and Scripting Interpreter: PowerShell

Drops startup file

Looks up external IP address via web service

Unsigned PE

Enumerates physical storage devices

Suspicious use of SetWindowsHookEx

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-05-30 10:06

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 10:06

Reported

2024-05-30 10:09

Platform

win11-20240426-en

Max time kernel

146s

Max time network

152s

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

Drops startup file

Description Indicator Process Target
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
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

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 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
N/A 127.0.0.1:4099 tcp
N/A 127.0.0.1:4099 tcp
N/A 127.0.0.1:4099 tcp
N/A 127.0.0.1:4099 tcp
N/A 127.0.0.1:4099 tcp
N/A 127.0.0.1:4099 tcp
N/A 127.0.0.1:4099 tcp
N/A 127.0.0.1:4099 tcp
N/A 127.0.0.1:4099 tcp
N/A 127.0.0.1:4099 tcp
N/A 127.0.0.1:4099 tcp
N/A 127.0.0.1:4099 tcp
N/A 127.0.0.1:4099 tcp
N/A 127.0.0.1:4099 tcp
N/A 127.0.0.1:4099 tcp
N/A 127.0.0.1:4099 tcp

Files

memory/4284-0-0x00007FFDFEE33000-0x00007FFDFEE35000-memory.dmp

memory/4284-1-0x0000000000170000-0x000000000018A000-memory.dmp

memory/4284-2-0x00007FFDFEE30000-0x00007FFDFF8F2000-memory.dmp

memory/4916-3-0x00007FFDFEE30000-0x00007FFDFF8F2000-memory.dmp

memory/4916-4-0x00007FFDFEE30000-0x00007FFDFF8F2000-memory.dmp

memory/4916-5-0x0000017CDA190000-0x0000017CDA1B2000-memory.dmp

memory/4916-6-0x00007FFDFEE30000-0x00007FFDFF8F2000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_5wvhtumk.30v.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/4916-15-0x00007FFDFEE30000-0x00007FFDFF8F2000-memory.dmp

memory/4916-16-0x00007FFDFEE30000-0x00007FFDFF8F2000-memory.dmp

memory/4916-19-0x00007FFDFEE30000-0x00007FFDFF8F2000-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 4093e5ab3812960039eba1a814c2ffb0
SHA1 b5e4a98a80be72fccd3cc910e93113d2febef298
SHA256 c0794e2b7036ce5612446a8b15e0c8387773bbc921f63cf8849f8a1f4ef3878c
SHA512 f3555b45aa1a1dd5214716dc81a05905c4ecd5a3e1276d35e08c65623ab1d14d469b3b576a5d9638264c1222d73889d2cc1ee43fb579d9ca3fcddd9f557cac7b

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

MD5 80b42fe4c6cf64624e6c31e5d7f2d3b3
SHA1 1f93e7dd83b86cb900810b7e3e43797868bf7d93
SHA256 ee20a5b38a6674366efda276dbbf0b43eb54efd282acfc1033042f6b53a80d4d
SHA512 83c1c744c15a8b427a1d3af677ec3bfd0353875a60fe886c41570981e17467ebbb59619b960ca8c5c3ab1430946b0633ea200b7e7d84ab6dca88b60c50055573

memory/4284-55-0x00007FFDFEE30000-0x00007FFDFF8F2000-memory.dmp