xworm | baa8ace81d5e51f20fea99bf6b8de26c594a2011b670883304e085e5a9847eb2

General

Target

XClient.exe
Size

80KB
MD5

bfa950b37b6a4f8de71af861e677a8b4
SHA1

2ee40bfbf2964d92c82256e5924169295dfdd225
SHA256

07f94f8f6061ba95899914496edc5854aa810de56797d9004875276d60e21ade
SHA512

235b514fac01b24edaef3aeb4209676789b6ba9264a8798cb7ae48c26d2455cdd8f254e92bbba688535acb69fd77b3c0a0a549cf97ece84c235cc74f72234e1a
SSDEEP

1536:EI5NuEGJkEtydWqZQSp1eS+b59gxzhfxdl/5m6qeo//3Oy/4IK4Dax5:Eg1GhtktQGAS+b59cJ4eA/OlINDab

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

full-self.gl.at.ply.gg:45212

Attributes

Install_directory
%AppData%
install_file
XClient.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/1852-1-0x0000000000A10000-0x0000000000A2A000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm

Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2840	powershell.exe
2996	powershell.exe
3028	powershell.exe
2644	powershell.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3434294380-2554721341-1919518612-1000\Software\Microsoft\Windows\CurrentVersion\Run\XClient = "C:\\Users\\Admin\\AppData\\Roaming\\XClient.exe"	XClient.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2840	powershell.exe
2996	powershell.exe
3028	powershell.exe
2644	powershell.exe
1852	XClient.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	1852	XClient.exe
Token: SeDebugPrivilege	2840	powershell.exe
Token: SeDebugPrivilege	2996	powershell.exe
Token: SeDebugPrivilege	3028	powershell.exe
Token: SeDebugPrivilege	2644	powershell.exe
Token: SeDebugPrivilege	1852	XClient.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1852	XClient.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1852 wrote to memory of 2840	1852	XClient.exe	28
PID 1852 wrote to memory of 2840	1852	XClient.exe	28
PID 1852 wrote to memory of 2840	1852	XClient.exe	28
PID 1852 wrote to memory of 2996	1852	XClient.exe	30
PID 1852 wrote to memory of 2996	1852	XClient.exe	30
PID 1852 wrote to memory of 2996	1852	XClient.exe	30
PID 1852 wrote to memory of 3028	1852	XClient.exe	32
PID 1852 wrote to memory of 3028	1852	XClient.exe	32
PID 1852 wrote to memory of 3028	1852	XClient.exe	32
PID 1852 wrote to memory of 2644	1852	XClient.exe	34
PID 1852 wrote to memory of 2644	1852	XClient.exe	34
PID 1852 wrote to memory of 2644	1852	XClient.exe	34

C:\Users\Admin\AppData\Local\Temp\XClient.exe
"C:\Users\Admin\AppData\Local\Temp\XClient.exe"
1⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1852
- 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'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2840
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2996
- 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'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3028
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2644

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\XUI874DYM1ZDXHY5EQQ4.temp

Filesize
7KB

MD5
9b876fe96a1c24a49294a6a49468bf90

SHA1
5368edd3798367fa01d8eae503358ad650d6be58

SHA256
a65606f043d3985282d1f1f6c27a7c35a3ff681ad013aca53b0f1da94c147e90

SHA512
5986eb118161279c182d0e6e8f55e7e30e61266b15fc5d7e386b36f7d25bc6a8df1db75799bbf8093ab04121532ae481f32a08066aeb29cd10eca2d70bdd9738

Download Submit
memory/1852-0-0x000007FEF6273000-0x000007FEF6274000-memory.dmp

Filesize
4KB

Download
memory/1852-1-0x0000000000A10000-0x0000000000A2A000-memory.dmp

Filesize
104KB

Download
memory/1852-28-0x000000001B0D0000-0x000000001B150000-memory.dmp

Filesize
512KB

Download
memory/1852-29-0x000007FEF6273000-0x000007FEF6274000-memory.dmp

Filesize
4KB

Download
memory/1852-30-0x000000001B0D0000-0x000000001B150000-memory.dmp

Filesize
512KB

Download
memory/2840-6-0x0000000002B40000-0x0000000002BC0000-memory.dmp

Filesize
512KB

Download
memory/2840-7-0x000000001B700000-0x000000001B9E2000-memory.dmp

Filesize
2.9MB

Download
memory/2840-8-0x0000000002910000-0x0000000002918000-memory.dmp

Filesize
32KB

Download
memory/2996-14-0x000000001B6F0000-0x000000001B9D2000-memory.dmp

Filesize
2.9MB

Download
memory/2996-15-0x00000000022B0000-0x00000000022B8000-memory.dmp

Filesize
32KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads