xworm | ec9fa98b9c0a55ad5d3b51bf6148b6e2041d1a14c36b4ad98caa9438bc3854e9

Analysis

max time kernel
150s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20250314-en
resource tags

arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
submitted
22/03/2025, 06:18

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General

Target

fe99ddfdfc78f8223ddd4511fafbccd50e22d089c428f9c6cea01d89b2142c6c.exe
Size

144KB
MD5

2c55bdee9b3ac74ea1c16c0c86deb93c
SHA1

f74a12160819d97888e93e5b56067d4b24413791
SHA256

fe99ddfdfc78f8223ddd4511fafbccd50e22d089c428f9c6cea01d89b2142c6c
SHA512

aebb19b54103f9aa2efda1da908fd08bd9e426610e7c6bccda92ceb0dd8116795b5ed54e6d05c2eb8588eb63fb2916970e443fc6639451e330e093d39f7ce3ae
SSDEEP

3072:3IJrjowkba1TOi1M+lmsolAIrRuw+mqv9j1MWLQI:3IdAbT+lDAA

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

xkpog9yml.localto.net:5392

:5392

Attributes

Install_directory
%Temp%
install_file
windowsservice.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral12/memory/5128-1-0x0000000000A90000-0x0000000000ABA000-memory.dmp	family_xworm
behavioral12/files/0x000a000000024164-8.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

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1062200478-553497403-3857448183-1000\Control Panel\International\Geo\Nation	fe99ddfdfc78f8223ddd4511fafbccd50e22d089c428f9c6cea01d89b2142c6c.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\windowsservice.lnk	fe99ddfdfc78f8223ddd4511fafbccd50e22d089c428f9c6cea01d89b2142c6c.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\windowsservice.lnk	fe99ddfdfc78f8223ddd4511fafbccd50e22d089c428f9c6cea01d89b2142c6c.exe

Executes dropped EXE 3 IoCs

pid	Process
4856	windowsservice.exe
5188	windowsservice.exe
5628	windowsservice.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-1-5-21-1062200478-553497403-3857448183-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\windowsservice = "C:\\Users\\Admin\\AppData\\Local\\Temp\\windowsservice.exe"	fe99ddfdfc78f8223ddd4511fafbccd50e22d089c428f9c6cea01d89b2142c6c.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
4576	schtasks.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	5128	fe99ddfdfc78f8223ddd4511fafbccd50e22d089c428f9c6cea01d89b2142c6c.exe
Token: SeDebugPrivilege	4856	windowsservice.exe
Token: SeDebugPrivilege	5188	windowsservice.exe
Token: SeDebugPrivilege	5628	windowsservice.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 5128 wrote to memory of 4576	5128	fe99ddfdfc78f8223ddd4511fafbccd50e22d089c428f9c6cea01d89b2142c6c.exe	93
PID 5128 wrote to memory of 4576	5128	fe99ddfdfc78f8223ddd4511fafbccd50e22d089c428f9c6cea01d89b2142c6c.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\fe99ddfdfc78f8223ddd4511fafbccd50e22d089c428f9c6cea01d89b2142c6c.exe
"C:\Users\Admin\AppData\Local\Temp\fe99ddfdfc78f8223ddd4511fafbccd50e22d089c428f9c6cea01d89b2142c6c.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5128
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "windowsservice" /tr "C:\Users\Admin\AppData\Local\Temp\windowsservice.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:4576

C:\Users\Admin\AppData\Local\Temp\windowsservice.exe
C:\Users\Admin\AppData\Local\Temp\windowsservice.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4856

C:\Users\Admin\AppData\Local\Temp\windowsservice.exe
C:\Users\Admin\AppData\Local\Temp\windowsservice.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:5188

C:\Users\Admin\AppData\Local\Temp\windowsservice.exe
C:\Users\Admin\AppData\Local\Temp\windowsservice.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:5628

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

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

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\windowsservice.exe.log

Filesize
654B

MD5
2ff39f6c7249774be85fd60a8f9a245e

SHA1
684ff36b31aedc1e587c8496c02722c6698c1c4e

SHA256
e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

SHA512
1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

Download Submit
C:\Users\Admin\AppData\Local\Temp\windowsservice.exe

Filesize
144KB

MD5
2c55bdee9b3ac74ea1c16c0c86deb93c

SHA1
f74a12160819d97888e93e5b56067d4b24413791

SHA256
fe99ddfdfc78f8223ddd4511fafbccd50e22d089c428f9c6cea01d89b2142c6c

SHA512
aebb19b54103f9aa2efda1da908fd08bd9e426610e7c6bccda92ceb0dd8116795b5ed54e6d05c2eb8588eb63fb2916970e443fc6639451e330e093d39f7ce3ae

Download Submit
memory/4856-10-0x00007FFE67400000-0x00007FFE67EC1000-memory.dmp

Filesize
10.8MB

Download
memory/4856-13-0x00007FFE67400000-0x00007FFE67EC1000-memory.dmp

Filesize
10.8MB

Download
memory/5128-0-0x00007FFE67403000-0x00007FFE67405000-memory.dmp

Filesize
8KB

Download
memory/5128-1-0x0000000000A90000-0x0000000000ABA000-memory.dmp

Filesize
168KB

Download
memory/5128-6-0x00007FFE67400000-0x00007FFE67EC1000-memory.dmp

Filesize
10.8MB

Download
memory/5128-7-0x00007FFE67403000-0x00007FFE67405000-memory.dmp

Filesize
8KB

Download
memory/5128-11-0x00007FFE67400000-0x00007FFE67EC1000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads