xworm | 3394a84609088b9e0cc8e0e9df4c9f1c94f6fda2efc10164eef27bec071372e3 | Triage

Analysis

max time kernel
17s
max time network
25s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-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
behavioral2/memory/2744-1-0x0000000000110000-0x000000000013E000-memory.dmp	family_xworm
behavioral2/files/0x000c0000000122ce-8.dat	family_xworm

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

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\XClient.lnk	XClient.exe
File created	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-1-5-21-312935884-697965778-3955649944-1000\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
2344	schtasks.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2744	XClient.exe
Token: SeDebugPrivilege	2744	XClient.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2744 wrote to memory of 2344	2744	XClient.exe	31
PID 2744 wrote to memory of 2344	2744	XClient.exe	31
PID 2744 wrote to memory of 2344	2744	XClient.exe	31

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⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2744
- 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:2344

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/2744-0-0x000007FEF6623000-0x000007FEF6624000-memory.dmp

Filesize
4KB

Download
memory/2744-1-0x0000000000110000-0x000000000013E000-memory.dmp

Filesize
184KB

Download
memory/2744-10-0x000007FEF6620000-0x000007FEF700C000-memory.dmp

Filesize
9.9MB

Download
memory/2744-11-0x000007FEF6623000-0x000007FEF6624000-memory.dmp

Filesize
4KB

Download
memory/2744-12-0x000007FEF6620000-0x000007FEF700C000-memory.dmp

Filesize
9.9MB

Download