xworm | 3394a84609088b9e0cc8e0e9df4c9f1c94f6fda2efc10164eef27bec071372e3 | Triage

Analysis

max time kernel
30s
max time network
31s
platform
windows10-2004_x64
resource
win10v2004-20250217-en
resource tags

arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
submitted
07/03/2025, 01:07

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General

Target

XClient.exe
Size

156KB
MD5

49acade22394e1ad05b0a24ad2461d44
SHA1

2cc67fe90f60f39918de6e02755756d04a9ea6a6
SHA256

3394a84609088b9e0cc8e0e9df4c9f1c94f6fda2efc10164eef27bec071372e3
SHA512

f7b85b6594dbd5db200810c563a2de3a8be6c9d1b9796ee2b7c856fe1747b54cc467d23a2c15120368e2155c490788c3964c1515990cab4a930f59f67adfdd87
SSDEEP

1536:WRWZt9DWl8i9ko6zbQ8v/niOiN/NHERafjVm:kst08iWo6zbQ8yOiNVHEoY

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

3.1

C2

places-y.gl.at.ply.gg:45473

Attributes

Install_directory
%AppData%
install_file
USB.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral1/memory/2124-1-0x0000000000DC0000-0x0000000000DEE000-memory.dmp	family_xworm
behavioral1/files/0x000700000001e63f-8.dat	family_xworm

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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-925314154-1797147466-1467878628-1000\Control Panel\International\Geo\Nation	XClient.exe

Drops startup file 2 IoCs

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

Adds Run key to start application 2 TTPs 1 IoCs

Registry Run Keys / Startup Folder

Modify Registry

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-925314154-1797147466-1467878628-1000\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

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

pid	Process
116	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2124	XClient.exe
Token: SeDebugPrivilege	2124	XClient.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 2124 wrote to memory of 116	2124	XClient.exe	93
PID 2124 wrote to memory of 116	2124	XClient.exe	93

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\XClient.exe
"C:\Users\Admin\AppData\Local\Temp\XClient.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2124
- 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:116

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

Scheduled Task

Persistence

Boot or Logon Autostart Execution

Registry Run Keys / Startup Folder

Scheduled Task/Job

Scheduled Task

Privilege Escalation

Boot or Logon Autostart Execution

Registry Run Keys / Startup Folder

Scheduled Task/Job

Scheduled Task

Defense Evasion

Modify Registry

Credential Access

Discovery

Query Registry

System Information Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
156KB

MD5
49acade22394e1ad05b0a24ad2461d44

SHA1
2cc67fe90f60f39918de6e02755756d04a9ea6a6

SHA256
3394a84609088b9e0cc8e0e9df4c9f1c94f6fda2efc10164eef27bec071372e3

SHA512
f7b85b6594dbd5db200810c563a2de3a8be6c9d1b9796ee2b7c856fe1747b54cc467d23a2c15120368e2155c490788c3964c1515990cab4a930f59f67adfdd87

Download Submit
memory/2124-0-0x00007FFEB1F03000-0x00007FFEB1F05000-memory.dmp

Filesize
8KB

Download
memory/2124-1-0x0000000000DC0000-0x0000000000DEE000-memory.dmp

Filesize
184KB

Download
memory/2124-10-0x00007FFEB1F00000-0x00007FFEB29C1000-memory.dmp

Filesize
10.8MB

Download
memory/2124-11-0x00007FFEB1F03000-0x00007FFEB1F05000-memory.dmp

Filesize
8KB

Download
memory/2124-12-0x00007FFEB1F00000-0x00007FFEB29C1000-memory.dmp

Filesize
10.8MB

Download