xworm | d65824b6d2c191eb48d040261d408ecb3f1d0cf6ef9ceac096543b184582aded

Resubmissions

06/03/2025, 14:33

250306-rw458azzdv 10

06/03/2025, 14:29

250306-rtqvtazygz 10

Analysis

max time kernel
137s
max time network
142s
platform
windows10-ltsc 2021_x64
resource
win10ltsc2021-20250217-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20250217-enlocale:en-usos:windows10-ltsc 2021-x64system
submitted
06/03/2025, 14:29

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General

Target

XClient.exe
Size

34KB
MD5

420aaab8a4e68d5730a9e19422a0fe96
SHA1

f4dd350f797169f22c8efd7de8a252b7d2fcf8ae
SHA256

d65824b6d2c191eb48d040261d408ecb3f1d0cf6ef9ceac096543b184582aded
SHA512

fa1ccd03397231387559381aa7762e786b98fa89c02a8b09b6804a14ed0a3ce45ba11bb6b5f7a112a2420a3bd25f708f2ebc4afb281c377dc372fca563e63f98
SSDEEP

768:0e749/qEkLACVVickCVFy19JZ6aO/hoq/:XaCEk8hcdF49JZ6aO/CQ

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

3.1

association-lectures.gl.at.ply.gg:32463

Mutex

Gpg1PP1lxuWY9X4X

Attributes

Install_directory
%AppData%
install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/memory/4588-1-0x0000000000380000-0x000000000038E000-memory.dmp	family_xworm
behavioral2/files/0x0008000000027edf-50.dat	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 3 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
1004	powershell.exe
1716	powershell.exe
3640	powershell.exe

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-1-5-21-1252571373-3012572919-3982031544-1000\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

Executes dropped EXE 3 IoCs

pid	Process
6064	XClient.exe
2432	XClient.exe
2972	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-1-5-21-1252571373-3012572919-3982031544-1000\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

T1053.005

pid	Process
5540	schtasks.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
1004	powershell.exe
1004	powershell.exe
1716	powershell.exe
1716	powershell.exe
3640	powershell.exe
3640	powershell.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4588	XClient.exe
Token: SeDebugPrivilege	1004	powershell.exe
Token: SeIncreaseQuotaPrivilege	1004	powershell.exe
Token: SeSecurityPrivilege	1004	powershell.exe
Token: SeTakeOwnershipPrivilege	1004	powershell.exe
Token: SeLoadDriverPrivilege	1004	powershell.exe
Token: SeSystemProfilePrivilege	1004	powershell.exe
Token: SeSystemtimePrivilege	1004	powershell.exe
Token: SeProfSingleProcessPrivilege	1004	powershell.exe
Token: SeIncBasePriorityPrivilege	1004	powershell.exe
Token: SeCreatePagefilePrivilege	1004	powershell.exe
Token: SeBackupPrivilege	1004	powershell.exe
Token: SeRestorePrivilege	1004	powershell.exe
Token: SeShutdownPrivilege	1004	powershell.exe
Token: SeDebugPrivilege	1004	powershell.exe
Token: SeSystemEnvironmentPrivilege	1004	powershell.exe
Token: SeRemoteShutdownPrivilege	1004	powershell.exe
Token: SeUndockPrivilege	1004	powershell.exe
Token: SeManageVolumePrivilege	1004	powershell.exe
Token: 33	1004	powershell.exe
Token: 34	1004	powershell.exe
Token: 35	1004	powershell.exe
Token: 36	1004	powershell.exe
Token: SeDebugPrivilege	1716	powershell.exe
Token: SeIncreaseQuotaPrivilege	1716	powershell.exe
Token: SeSecurityPrivilege	1716	powershell.exe
Token: SeTakeOwnershipPrivilege	1716	powershell.exe
Token: SeLoadDriverPrivilege	1716	powershell.exe
Token: SeSystemProfilePrivilege	1716	powershell.exe
Token: SeSystemtimePrivilege	1716	powershell.exe
Token: SeProfSingleProcessPrivilege	1716	powershell.exe
Token: SeIncBasePriorityPrivilege	1716	powershell.exe
Token: SeCreatePagefilePrivilege	1716	powershell.exe
Token: SeBackupPrivilege	1716	powershell.exe
Token: SeRestorePrivilege	1716	powershell.exe
Token: SeShutdownPrivilege	1716	powershell.exe
Token: SeDebugPrivilege	1716	powershell.exe
Token: SeSystemEnvironmentPrivilege	1716	powershell.exe
Token: SeRemoteShutdownPrivilege	1716	powershell.exe
Token: SeUndockPrivilege	1716	powershell.exe
Token: SeManageVolumePrivilege	1716	powershell.exe
Token: 33	1716	powershell.exe
Token: 34	1716	powershell.exe
Token: 35	1716	powershell.exe
Token: 36	1716	powershell.exe
Token: SeDebugPrivilege	3640	powershell.exe
Token: SeIncreaseQuotaPrivilege	3640	powershell.exe
Token: SeSecurityPrivilege	3640	powershell.exe
Token: SeTakeOwnershipPrivilege	3640	powershell.exe
Token: SeLoadDriverPrivilege	3640	powershell.exe
Token: SeSystemProfilePrivilege	3640	powershell.exe
Token: SeSystemtimePrivilege	3640	powershell.exe
Token: SeProfSingleProcessPrivilege	3640	powershell.exe
Token: SeIncBasePriorityPrivilege	3640	powershell.exe
Token: SeCreatePagefilePrivilege	3640	powershell.exe
Token: SeBackupPrivilege	3640	powershell.exe
Token: SeRestorePrivilege	3640	powershell.exe
Token: SeShutdownPrivilege	3640	powershell.exe
Token: SeDebugPrivilege	3640	powershell.exe
Token: SeSystemEnvironmentPrivilege	3640	powershell.exe
Token: SeRemoteShutdownPrivilege	3640	powershell.exe
Token: SeUndockPrivilege	3640	powershell.exe
Token: SeManageVolumePrivilege	3640	powershell.exe
Token: 33	3640	powershell.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4588 wrote to memory of 1004	4588	XClient.exe	87
PID 4588 wrote to memory of 1004	4588	XClient.exe	87
PID 4588 wrote to memory of 1716	4588	XClient.exe	92
PID 4588 wrote to memory of 1716	4588	XClient.exe	92
PID 4588 wrote to memory of 3640	4588	XClient.exe	94
PID 4588 wrote to memory of 3640	4588	XClient.exe	94
PID 4588 wrote to memory of 5540	4588	XClient.exe	96
PID 4588 wrote to memory of 5540	4588	XClient.exe	96

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:4588
- 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\XClient.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1004
- 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:1716
- 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:3640
- 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:5540

C:\Users\Admin\AppData\Roaming\XClient.exe
"C:\Users\Admin\AppData\Roaming\XClient.exe"
1⤵
- Executes dropped EXE
PID:6064

C:\Users\Admin\AppData\Roaming\XClient.exe
"C:\Users\Admin\AppData\Roaming\XClient.exe"
1⤵
- Executes dropped EXE
PID:2432

C:\Users\Admin\AppData\Roaming\XClient.exe
"C:\Users\Admin\AppData\Roaming\XClient.exe"
1⤵
- Executes dropped EXE
PID:2972

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

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Downloads

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

Filesize
654B

MD5
11c6e74f0561678d2cf7fc075a6cc00c

SHA1
535ee79ba978554abcb98c566235805e7ea18490

SHA256
d39a78fabca39532fcb85ce908781a75132e1bd01cc50a3b290dd87127837d63

SHA512
32c63d67bf512b42e7f57f71287b354200126cb417ef9d869c72e0b9388a7c2f5e3b61f303f1353baa1bf482d0f17e06e23c9f50b2f1babd4d958b6da19c40b0

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
3KB

MD5
3eb3833f769dd890afc295b977eab4b4

SHA1
e857649b037939602c72ad003e5d3698695f436f

SHA256
c485a6e2fd17c342fca60060f47d6a5655a65a412e35e001bb5bf88d96e6e485

SHA512
c24bbc8f278478d43756807b8c584d4e3fb2289db468bc92986a489f74a8da386a667a758360a397e77e018e363be8912ac260072fa3e31117ad0599ac749e72

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
1KB

MD5
c67441dfa09f61bca500bb43407c56b8

SHA1
5a56cf7cbeb48c109e2128c31b681fac3959157b

SHA256
63082da456c124d0bc516d2161d1613db5f3008d903e4066d2c7b4e90b435f33

SHA512
325de8b718b3a01df05e20e028c5882240e5fd2e96c771361b776312923ff178f27494a1f5249bf6d7365a99155eb8735a51366e85597008e6a10462e63ee0e8

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
1KB

MD5
dece17e8b3d1cc0b29cf5a977b68730e

SHA1
e24e56624c7701b349a5a07642e9b9d902196f55

SHA256
1f78459e977340a708884f6f42099ad6914a855ee98cba6c09bbb2b56dbaa908

SHA512
8a966a00209f43ebc4051c3433aa12ce4e9a2f85acfb428f87fc7fd222549085c115df2372cbc29836a926950a38400a68e29c6f89c8f237a14c7833a92eb8a4

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_pv2zhqmw.mpg.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

Filesize
34KB

MD5
420aaab8a4e68d5730a9e19422a0fe96

SHA1
f4dd350f797169f22c8efd7de8a252b7d2fcf8ae

SHA256
d65824b6d2c191eb48d040261d408ecb3f1d0cf6ef9ceac096543b184582aded

SHA512
fa1ccd03397231387559381aa7762e786b98fa89c02a8b09b6804a14ed0a3ce45ba11bb6b5f7a112a2420a3bd25f708f2ebc4afb281c377dc372fca563e63f98

Download Submit
memory/1004-12-0x00007FFF13070000-0x00007FFF13B32000-memory.dmp

Filesize
10.8MB

Download
memory/1004-15-0x00007FFF13070000-0x00007FFF13B32000-memory.dmp

Filesize
10.8MB

Download
memory/1004-16-0x00007FFF13070000-0x00007FFF13B32000-memory.dmp

Filesize
10.8MB

Download
memory/1004-19-0x00007FFF13070000-0x00007FFF13B32000-memory.dmp

Filesize
10.8MB

Download
memory/1004-14-0x00007FFF13070000-0x00007FFF13B32000-memory.dmp

Filesize
10.8MB

Download
memory/1004-13-0x00007FFF13070000-0x00007FFF13B32000-memory.dmp

Filesize
10.8MB

Download
memory/1004-11-0x000001BDD61E0000-0x000001BDD6202000-memory.dmp

Filesize
136KB

Download
memory/4588-0-0x00007FFF13073000-0x00007FFF13075000-memory.dmp

Filesize
8KB

Download
memory/4588-47-0x00007FFF13073000-0x00007FFF13075000-memory.dmp

Filesize
8KB

Download
memory/4588-52-0x00007FFF13070000-0x00007FFF13B32000-memory.dmp

Filesize
10.8MB

Download
memory/4588-56-0x00007FFF13070000-0x00007FFF13B32000-memory.dmp

Filesize
10.8MB

Download
memory/4588-57-0x0000000002490000-0x000000000249A000-memory.dmp

Filesize
40KB

Download
memory/4588-1-0x0000000000380000-0x000000000038E000-memory.dmp

Filesize
56KB

Download