xworm | 5e5d5458b8a025c2bc9a6e7998492989732967c9a1019b11d655200adf3686c7

Analysis

max time kernel
144s
max time network
133s
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, 06:13

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General

Target

825b5bf7809427781ab9eefb0f139255.exe
Size

38KB
MD5

825b5bf7809427781ab9eefb0f139255
SHA1

6864d57c5fc44e43fca8fda5bfb40c26b7a70804
SHA256

0e7b11f47c021e3e338d099da258cc2e068aff9eddc68e603f82d53347134a31
SHA512

6dad901703326ab2b853d9a0ec73fcbac523127c7de33cf787a217d61818cb7e350bef87fa6d0553977eaf46840260873c6a9087aa234624d62d4c01bbd16b14
SSDEEP

768:vzpm6oL50kuAM6tQijixOTFQ9UBOwhebJE:rpmLekMFeFQ9UBOwIVE

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

127.0.0.1:7000

Mutex

3of0BUcZm7XWUIl3

Attributes

Install_directory
%Userprofile%
install_file
unbranded.exe

aes.plain

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral10/memory/6140-1-0x0000000000480000-0x0000000000490000-memory.dmp	family_xworm
behavioral10/files/0x0008000000024214-7.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	825b5bf7809427781ab9eefb0f139255.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\unbranded.lnk	825b5bf7809427781ab9eefb0f139255.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\unbranded.lnk	825b5bf7809427781ab9eefb0f139255.exe

Executes dropped EXE 3 IoCs

pid	Process
4716	unbranded.exe
2560	unbranded.exe
5736	unbranded.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\unbranded = "C:\\Users\\Admin\\unbranded.exe"	825b5bf7809427781ab9eefb0f139255.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
4508	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
6140	825b5bf7809427781ab9eefb0f139255.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	6140	825b5bf7809427781ab9eefb0f139255.exe
Token: SeDebugPrivilege	4716	unbranded.exe
Token: SeDebugPrivilege	2560	unbranded.exe
Token: SeDebugPrivilege	5736	unbranded.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
6140	825b5bf7809427781ab9eefb0f139255.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 6140 wrote to memory of 4508	6140	825b5bf7809427781ab9eefb0f139255.exe	89
PID 6140 wrote to memory of 4508	6140	825b5bf7809427781ab9eefb0f139255.exe	89

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\825b5bf7809427781ab9eefb0f139255.exe
"C:\Users\Admin\AppData\Local\Temp\825b5bf7809427781ab9eefb0f139255.exe"
1⤵
- Checks computer location settings
- 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:6140
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "unbranded" /tr "C:\Users\Admin\unbranded.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:4508

C:\Users\Admin\unbranded.exe
C:\Users\Admin\unbranded.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4716

C:\Users\Admin\unbranded.exe
C:\Users\Admin\unbranded.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2560

C:\Users\Admin\unbranded.exe
C:\Users\Admin\unbranded.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:5736

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\unbranded.exe.log

Filesize
654B

MD5
2ff39f6c7249774be85fd60a8f9a245e

SHA1
684ff36b31aedc1e587c8496c02722c6698c1c4e

SHA256
e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

SHA512
1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

Download Submit
C:\Users\Admin\unbranded.exe

Filesize
38KB

MD5
825b5bf7809427781ab9eefb0f139255

SHA1
6864d57c5fc44e43fca8fda5bfb40c26b7a70804

SHA256
0e7b11f47c021e3e338d099da258cc2e068aff9eddc68e603f82d53347134a31

SHA512
6dad901703326ab2b853d9a0ec73fcbac523127c7de33cf787a217d61818cb7e350bef87fa6d0553977eaf46840260873c6a9087aa234624d62d4c01bbd16b14

Download Submit
memory/4716-9-0x00007FF803E90000-0x00007FF804951000-memory.dmp

Filesize
10.8MB

Download
memory/4716-11-0x00007FF803E90000-0x00007FF804951000-memory.dmp

Filesize
10.8MB

Download
memory/6140-0-0x00007FF803E93000-0x00007FF803E95000-memory.dmp

Filesize
8KB

Download
memory/6140-1-0x0000000000480000-0x0000000000490000-memory.dmp

Filesize
64KB

Download
memory/6140-6-0x00007FF803E90000-0x00007FF804951000-memory.dmp

Filesize
10.8MB

Download
memory/6140-12-0x00007FF803E90000-0x00007FF804951000-memory.dmp

Filesize
10.8MB

Download