xworm | baa8ace81d5e51f20fea99bf6b8de26c594a2011b670883304e085e5a9847eb2

Analysis

max time kernel
30s
max time network
35s
platform
windows7_x64
resource
win7-20240704-en
resource tags

arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
submitted
01-08-2024 20:54

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Reason

Machine shutdown

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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

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/2936-1-0x0000000000E50000-0x0000000000E6A000-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
2760	powershell.exe
2616	powershell.exe
2724	powershell.exe
2668	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-1-5-21-2212144002-1172735686-1556890956-1000\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
2760	powershell.exe
2616	powershell.exe
2724	powershell.exe
2668	powershell.exe
2936	XClient.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	2936	XClient.exe
Token: SeDebugPrivilege	2760	powershell.exe
Token: SeDebugPrivilege	2616	powershell.exe
Token: SeDebugPrivilege	2724	powershell.exe
Token: SeDebugPrivilege	2668	powershell.exe
Token: SeDebugPrivilege	2936	XClient.exe
Token: SeShutdownPrivilege	2980	shutdown.exe
Token: SeRemoteShutdownPrivilege	2980	shutdown.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2936	XClient.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2936 wrote to memory of 2760	2936	XClient.exe	30
PID 2936 wrote to memory of 2760	2936	XClient.exe	30
PID 2936 wrote to memory of 2760	2936	XClient.exe	30
PID 2936 wrote to memory of 2616	2936	XClient.exe	32
PID 2936 wrote to memory of 2616	2936	XClient.exe	32
PID 2936 wrote to memory of 2616	2936	XClient.exe	32
PID 2936 wrote to memory of 2724	2936	XClient.exe	34
PID 2936 wrote to memory of 2724	2936	XClient.exe	34
PID 2936 wrote to memory of 2724	2936	XClient.exe	34
PID 2936 wrote to memory of 2668	2936	XClient.exe	36
PID 2936 wrote to memory of 2668	2936	XClient.exe	36
PID 2936 wrote to memory of 2668	2936	XClient.exe	36
PID 2936 wrote to memory of 2980	2936	XClient.exe	39
PID 2936 wrote to memory of 2980	2936	XClient.exe	39
PID 2936 wrote to memory of 2980	2936	XClient.exe	39

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:2936
- 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:2760
- 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:2616
- 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:2724
- 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:2668
- C:\Windows\system32\shutdown.exe
  shutdown.exe /f /s /t 0
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:2980

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x0
1⤵
PID:2384

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x1
1⤵
PID:2460

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\OK8NFGLUXYTZFW78CM37.temp

Filesize
7KB

MD5
45c2247d65a9c53feae293010a9fb81a

SHA1
7b7aa31f7bef5d3e7575e625f4787b81b448dbdf

SHA256
92d5b12e5983454da51ae46905d474c9268ec0852dbadaa02b7aebd14ae19014

SHA512
2af90ead619199784f297737644455f6a35656bc0618fe9d591a272093bd896fcb4840dd5c422565767ec0b10cf0d7be687e807b07dd68ae6088cabaea72dbba

Download Submit
memory/2616-15-0x0000000001EC0000-0x0000000001EC8000-memory.dmp

Filesize
32KB

Download
memory/2616-14-0x000000001B360000-0x000000001B642000-memory.dmp

Filesize
2.9MB

Download
memory/2760-6-0x0000000002930000-0x00000000029B0000-memory.dmp

Filesize
512KB

Download
memory/2760-8-0x0000000002470000-0x0000000002478000-memory.dmp

Filesize
32KB

Download
memory/2760-7-0x000000001B3C0000-0x000000001B6A2000-memory.dmp

Filesize
2.9MB

Download
memory/2936-0-0x000007FEF5FA3000-0x000007FEF5FA4000-memory.dmp

Filesize
4KB

Download
memory/2936-1-0x0000000000E50000-0x0000000000E6A000-memory.dmp

Filesize
104KB

Download
memory/2936-28-0x000000001B170000-0x000000001B1F0000-memory.dmp

Filesize
512KB

Download
memory/2936-29-0x000007FEF5FA3000-0x000007FEF5FA4000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

Errors

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads