Malware Analysis Report

2024-09-11 13:52

Sample ID 240615-mnxzqaxdlb
Target XClient.exe
SHA256 2dc64216e7ec072466c632e59a4da4101fdf3e4499dabc36724c01434ff4442e
Tags
xworm execution rat trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

2dc64216e7ec072466c632e59a4da4101fdf3e4499dabc36724c01434ff4442e

Threat Level: Known bad

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

Malicious Activity Summary

xworm execution rat trojan

Xworm

Xworm family

Detect Xworm Payload

Command and Scripting Interpreter: PowerShell

Checks computer location settings

Deletes itself

Drops startup file

Looks up external IP address via web service

Enumerates physical storage devices

Unsigned PE

Checks processor information in registry

Enumerates system info in registry

Suspicious use of AdjustPrivilegeToken

Suspicious behavior: EnumeratesProcesses

Suspicious use of WriteProcessMemory

Delays execution with timeout.exe

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Command and Scripting Interpreter
T1059
PowerShell
T1059.001
Persistence
TA0003
Privilege Escalation
TA0004
Defense Evasion
TA0005
Credential Access
TA0006
Discovery
TA0007
Query Registry
T1012
System Information Discovery
T1082
Lateral Movement
TA0008
Collection
TA0009
Exfiltration
TA0010
Command and Control
TA0011
Impact
TA0040
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2024-06-15 10:37

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: behavioral2

Detonation Overview

Submitted

2024-06-15 10:37

Reported

2024-06-15 10:39

Platform

win10v2004-20240508-en

Max time kernel

52s

Max time network

47s

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

Command and Scripting Interpreter: PowerShell

execution
Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\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

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 behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

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 WriteProcessMemory

Description Indicator Process Target
PID 368 wrote to memory of 2208 N/A C:\Users\Admin\AppData\Local\Temp\XClient.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 368 wrote to memory of 2208 N/A C:\Users\Admin\AppData\Local\Temp\XClient.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 368 wrote to memory of 4628 N/A C:\Users\Admin\AppData\Local\Temp\XClient.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 368 wrote to memory of 4628 N/A C:\Users\Admin\AppData\Local\Temp\XClient.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 368 wrote to memory of 1716 N/A C:\Users\Admin\AppData\Local\Temp\XClient.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 368 wrote to memory of 1716 N/A C:\Users\Admin\AppData\Local\Temp\XClient.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 368 wrote to memory of 2660 N/A C:\Users\Admin\AppData\Local\Temp\XClient.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 368 wrote to memory of 2660 N/A C:\Users\Admin\AppData\Local\Temp\XClient.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

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 8.8.8.8:53 cameras-happen.gl.at.ply.gg udp

Files

memory/368-0-0x00007FF841A83000-0x00007FF841A85000-memory.dmp

memory/368-1-0x0000000000350000-0x0000000000366000-memory.dmp

memory/368-2-0x00007FF841A80000-0x00007FF842541000-memory.dmp

memory/2208-3-0x00007FF841A80000-0x00007FF842541000-memory.dmp

memory/2208-11-0x0000024BD0A30000-0x0000024BD0A52000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ne42foq5.y3f.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/2208-14-0x00007FF841A80000-0x00007FF842541000-memory.dmp

memory/2208-15-0x00007FF841A80000-0x00007FF842541000-memory.dmp

memory/2208-18-0x00007FF841A80000-0x00007FF842541000-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 bbc2b43d5e574fe7d193c6fc0eb7302c
SHA1 f22683b94ad593fd0513fef37df1fb5d0880cc22
SHA256 0efa2469ae0b02af024fd0e2828ccab085eaefef3736b3bda0ba631e3a45aa48
SHA512 287449b168297a5176b26777f2f5ca3284d967b93274db8b3029d130049073560a10e418607f670d08194193aa91fc9cd174717e7c1d051b09c23857fe3ab9d2

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

MD5 10890cda4b6eab618e926c4118ab0647
SHA1 1e1d63b73a0e6c7575f458b3c7917a9ce5ba776d
SHA256 00f8a035324d39bd62e6dee5e1b480069015471c487ebee4479e6990ea9ddb14
SHA512 a2ee84006c24a36f25e0bca0772430d64e3791f233da916aecdeae6712763e77d55bbbd00dc8f6b2b3887f3c26ab3980b96c5f46cc823e81e28abbbc5fc78221

memory/368-57-0x00007FF841A80000-0x00007FF842541000-memory.dmp

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-15 10:37

Reported

2024-06-15 10:39

Platform

win7-20240220-en

Max time kernel

120s

Max time network

120s

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

Command and Scripting Interpreter: PowerShell

execution
Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Deletes itself

Description Indicator Process Target
N/A N/A C:\Windows\system32\cmd.exe N/A

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

Checks processor information in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 C:\Users\Admin\AppData\Local\Temp\XClient.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier C:\Users\Admin\AppData\Local\Temp\XClient.exe N/A

Delays execution with timeout.exe

evasion
Description Indicator Process Target
N/A N/A C:\Windows\system32\timeout.exe N/A

Enumerates system info in registry

Description Indicator Process Target
Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS C:\Users\Admin\AppData\Local\Temp\XClient.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\BIOSVersion C:\Users\Admin\AppData\Local\Temp\XClient.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\BIOSReleaseDate C:\Users\Admin\AppData\Local\Temp\XClient.exe N/A
Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName C:\Users\Admin\AppData\Local\Temp\XClient.exe N/A

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

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 WriteProcessMemory

Description Indicator Process Target
PID 1740 wrote to memory of 1744 N/A C:\Users\Admin\AppData\Local\Temp\XClient.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1740 wrote to memory of 1744 N/A C:\Users\Admin\AppData\Local\Temp\XClient.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1740 wrote to memory of 1744 N/A C:\Users\Admin\AppData\Local\Temp\XClient.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1740 wrote to memory of 2624 N/A C:\Users\Admin\AppData\Local\Temp\XClient.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1740 wrote to memory of 2624 N/A C:\Users\Admin\AppData\Local\Temp\XClient.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1740 wrote to memory of 2624 N/A C:\Users\Admin\AppData\Local\Temp\XClient.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1740 wrote to memory of 3012 N/A C:\Users\Admin\AppData\Local\Temp\XClient.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1740 wrote to memory of 3012 N/A C:\Users\Admin\AppData\Local\Temp\XClient.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1740 wrote to memory of 3012 N/A C:\Users\Admin\AppData\Local\Temp\XClient.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1740 wrote to memory of 1436 N/A C:\Users\Admin\AppData\Local\Temp\XClient.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1740 wrote to memory of 1436 N/A C:\Users\Admin\AppData\Local\Temp\XClient.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1740 wrote to memory of 1436 N/A C:\Users\Admin\AppData\Local\Temp\XClient.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 1740 wrote to memory of 1176 N/A C:\Users\Admin\AppData\Local\Temp\XClient.exe C:\Windows\system32\cmd.exe
PID 1740 wrote to memory of 1176 N/A C:\Users\Admin\AppData\Local\Temp\XClient.exe C:\Windows\system32\cmd.exe
PID 1740 wrote to memory of 1176 N/A C:\Users\Admin\AppData\Local\Temp\XClient.exe C:\Windows\system32\cmd.exe
PID 1176 wrote to memory of 2024 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\timeout.exe
PID 1176 wrote to memory of 2024 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\timeout.exe
PID 1176 wrote to memory of 2024 N/A C:\Windows\system32\cmd.exe C:\Windows\system32\timeout.exe

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\cmd.exe

cmd /c ""C:\Users\Admin\AppData\Local\Temp\tmpB5D7.tmp.bat""

C:\Windows\system32\timeout.exe

timeout 3

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 cameras-happen.gl.at.ply.gg udp
US 147.185.221.20:23386 cameras-happen.gl.at.ply.gg tcp
US 147.185.221.20:23386 cameras-happen.gl.at.ply.gg tcp

Files

memory/1740-0-0x000007FEF5443000-0x000007FEF5444000-memory.dmp

memory/1740-1-0x0000000000AD0000-0x0000000000AE6000-memory.dmp

memory/1740-2-0x000007FEF5440000-0x000007FEF5E2C000-memory.dmp

memory/1744-7-0x0000000002C20000-0x0000000002CA0000-memory.dmp

memory/1744-8-0x000000001B580000-0x000000001B862000-memory.dmp

memory/1744-9-0x0000000001D90000-0x0000000001D98000-memory.dmp

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

MD5 459f683ed446ff0fc16d7a2152d83582
SHA1 98421219af9dc90e8f2e2076e17fe830a005054a
SHA256 358430cfbefa95687fd7fdcfbd88eabed3c35b6949d5754e3ae9de406855438f
SHA512 c3a107e0ff144816fe676ffe6681ed25eac37f121da58f10883face782df1e792806d459c1490fdcbccf5e92f7e2175ec61724e87ecb4f65e34e65ed8ffebf70

memory/2624-15-0x000000001B4E0000-0x000000001B7C2000-memory.dmp

memory/2624-16-0x0000000002810000-0x0000000002818000-memory.dmp

\??\PIPE\srvsvc

MD5 d41d8cd98f00b204e9800998ecf8427e
SHA1 da39a3ee5e6b4b0d3255bfef95601890afd80709
SHA256 e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA512 cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

memory/1740-33-0x000007FEF5443000-0x000007FEF5444000-memory.dmp

memory/1740-34-0x000007FEF5440000-0x000007FEF5E2C000-memory.dmp

memory/1740-35-0x000000001A7E0000-0x000000001A7EC000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\tmpB5D7.tmp.bat

MD5 4086db906e64340b00633553a930cf09
SHA1 0af2bff701d476ee6ec2f183b86caee604b4b734
SHA256 46d53187a773ab9825777316ec0a2e63cd6631cd2d7285a6d16e5f3dfbce6446
SHA512 2adedd195566fa5516269847898c874c0eafab664752c61bdaa45c40965a87abd781ac4f82919729d1d518abb758373d27e8f813e008a5ffd7ff5e928effb077

memory/1740-47-0x000007FEF5440000-0x000007FEF5E2C000-memory.dmp