xworm | 7e71c79883eb025596762b4e0bf86b447039079dfe510ccf13a383b612575fa6

Analysis

max time kernel
120s
max time network
157s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
22/03/2025, 06:09

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

3d97ea72c561c7d15574a99be582c59e.exe
Size

67KB
MD5

3d97ea72c561c7d15574a99be582c59e
SHA1

25eab8088c710e7f44b9d569eb96a27762cd53ca
SHA256

06de1b5a3ba2dae2ed909d8e647cc5c1a141b7520d26cda3f54947e7f8aaad45
SHA512

b0f1f99ac3927518e80ac6a5643949ac0945ab25faf7d4c8ea29dd9b3051f16fe3e3dea26a0006561b9836a50850cd2b41ad7c0341f6dcc823b73e9df02b1e69
SSDEEP

1536:I+mxV1I5K7uB6MnjU9bkVPWMXil+bV1Ts4um0h62lNn86OW6ds:I+DK7ukHYVPWM4+bVhp0lnjOWos

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

127.0.0.1:4758

108.77.173.66:4758

Attributes

Install_directory
%AppData%
install_file
XClient.exe

Signatures

Detect Xworm Payload 3 IoCs

resource	yara_rule
behavioral19/memory/1740-1-0x0000000000170000-0x0000000000188000-memory.dmp	family_xworm
behavioral19/files/0x000d000000012263-34.dat	family_xworm
behavioral19/memory/2808-36-0x00000000011E0000-0x00000000011F8000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Xworm family
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
276	powershell.exe
2756	powershell.exe
2992	powershell.exe
2664	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	3d97ea72c561c7d15574a99be582c59e.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	3d97ea72c561c7d15574a99be582c59e.exe

Executes dropped EXE 2 IoCs

pid	Process
2808	XClient.exe
588	XClient.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-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows\CurrentVersion\Run\XClient = "C:\\Users\\Admin\\AppData\\Roaming\\XClient.exe"	3d97ea72c561c7d15574a99be582c59e.exe

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

System Information Discovery
T1082

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
1356	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
276	powershell.exe
2756	powershell.exe
2992	powershell.exe
2664	powershell.exe
1740	3d97ea72c561c7d15574a99be582c59e.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	1740	3d97ea72c561c7d15574a99be582c59e.exe
Token: SeDebugPrivilege	276	powershell.exe
Token: SeDebugPrivilege	2756	powershell.exe
Token: SeDebugPrivilege	2992	powershell.exe
Token: SeDebugPrivilege	2664	powershell.exe
Token: SeDebugPrivilege	1740	3d97ea72c561c7d15574a99be582c59e.exe
Token: SeDebugPrivilege	2808	XClient.exe
Token: SeDebugPrivilege	588	XClient.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1740	3d97ea72c561c7d15574a99be582c59e.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1740 wrote to memory of 276	1740	3d97ea72c561c7d15574a99be582c59e.exe	28
PID 1740 wrote to memory of 276	1740	3d97ea72c561c7d15574a99be582c59e.exe	28
PID 1740 wrote to memory of 276	1740	3d97ea72c561c7d15574a99be582c59e.exe	28
PID 1740 wrote to memory of 2756	1740	3d97ea72c561c7d15574a99be582c59e.exe	30
PID 1740 wrote to memory of 2756	1740	3d97ea72c561c7d15574a99be582c59e.exe	30
PID 1740 wrote to memory of 2756	1740	3d97ea72c561c7d15574a99be582c59e.exe	30
PID 1740 wrote to memory of 2992	1740	3d97ea72c561c7d15574a99be582c59e.exe	32
PID 1740 wrote to memory of 2992	1740	3d97ea72c561c7d15574a99be582c59e.exe	32
PID 1740 wrote to memory of 2992	1740	3d97ea72c561c7d15574a99be582c59e.exe	32
PID 1740 wrote to memory of 2664	1740	3d97ea72c561c7d15574a99be582c59e.exe	34
PID 1740 wrote to memory of 2664	1740	3d97ea72c561c7d15574a99be582c59e.exe	34
PID 1740 wrote to memory of 2664	1740	3d97ea72c561c7d15574a99be582c59e.exe	34
PID 1740 wrote to memory of 1356	1740	3d97ea72c561c7d15574a99be582c59e.exe	36
PID 1740 wrote to memory of 1356	1740	3d97ea72c561c7d15574a99be582c59e.exe	36
PID 1740 wrote to memory of 1356	1740	3d97ea72c561c7d15574a99be582c59e.exe	36
PID 1776 wrote to memory of 2808	1776	taskeng.exe	40
PID 1776 wrote to memory of 2808	1776	taskeng.exe	40
PID 1776 wrote to memory of 2808	1776	taskeng.exe	40
PID 1776 wrote to memory of 588	1776	taskeng.exe	41
PID 1776 wrote to memory of 588	1776	taskeng.exe	41
PID 1776 wrote to memory of 588	1776	taskeng.exe	41

Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\3d97ea72c561c7d15574a99be582c59e.exe
"C:\Users\Admin\AppData\Local\Temp\3d97ea72c561c7d15574a99be582c59e.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1740
- 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\3d97ea72c561c7d15574a99be582c59e.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:276
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '3d97ea72c561c7d15574a99be582c59e.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2756
- 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:2992
- 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:2664
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "XClient" /tr "C:\Users\Admin\AppData\Roaming\XClient.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:1356

C:\Windows\system32\taskeng.exe
taskeng.exe {E584BCC4-D790-4DBC-A35B-2C13E1EB66A1} S-1-5-21-3692679935-4019334568-335155002-1000:BCXRJFKE\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1776
- C:\Users\Admin\AppData\Roaming\XClient.exe
  C:\Users\Admin\AppData\Roaming\XClient.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2808
- C:\Users\Admin\AppData\Roaming\XClient.exe
  C:\Users\Admin\AppData\Roaming\XClient.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:588

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
7KB

MD5
f971773501580461c171177128cfb630

SHA1
2c50969436cb5b29b5cd5461e2a659905e414b7a

SHA256
ed4b886aa7e752d922ff1d570a6b2c104807c13601820d69104eba07cbbc3794

SHA512
59cc3e1c91f70e06284699600c239d6a78b75747c4c607cedd57f310a405bb91988d512738156acac34033ae0a91c85bcae92acd3570a09b793f1d6b7ab1c76b

Download Submit
C:\Users\Admin\AppData\Roaming\XClient.exe

Filesize
67KB

MD5
3d97ea72c561c7d15574a99be582c59e

SHA1
25eab8088c710e7f44b9d569eb96a27762cd53ca

SHA256
06de1b5a3ba2dae2ed909d8e647cc5c1a141b7520d26cda3f54947e7f8aaad45

SHA512
b0f1f99ac3927518e80ac6a5643949ac0945ab25faf7d4c8ea29dd9b3051f16fe3e3dea26a0006561b9836a50850cd2b41ad7c0341f6dcc823b73e9df02b1e69

Download Submit
memory/276-9-0x00000000022E0000-0x00000000022E8000-memory.dmp

Filesize
32KB

Download
memory/276-6-0x0000000002560000-0x00000000025E0000-memory.dmp

Filesize
512KB

Download
memory/276-8-0x000000001B3B0000-0x000000001B692000-memory.dmp

Filesize
2.9MB

Download
memory/1740-7-0x000007FEF64B3000-0x000007FEF64B4000-memory.dmp

Filesize
4KB

Download
memory/1740-0-0x000007FEF64B3000-0x000007FEF64B4000-memory.dmp

Filesize
4KB

Download
memory/1740-31-0x000000001B260000-0x000000001B2E0000-memory.dmp

Filesize
512KB

Download
memory/1740-32-0x000000001B260000-0x000000001B2E0000-memory.dmp

Filesize
512KB

Download
memory/1740-1-0x0000000000170000-0x0000000000188000-memory.dmp

Filesize
96KB

Download
memory/2756-15-0x000000001B140000-0x000000001B422000-memory.dmp

Filesize
2.9MB

Download
memory/2756-16-0x00000000024E0000-0x00000000024E8000-memory.dmp

Filesize
32KB

Download
memory/2808-36-0x00000000011E0000-0x00000000011F8000-memory.dmp

Filesize
96KB

Download