xworm | d65824b6d2c191eb48d040261d408ecb3f1d0cf6ef9ceac096543b184582aded

Resubmissions

06/03/2025, 13:58

250306-q9shxa1jv8 10

06/03/2025, 13:38

250306-qxclxszpz4 10

Analysis

max time kernel
124s
max time network
151s
platform
windows10-ltsc 2021_x64
resource
win10ltsc2021-20250218-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20250218-enlocale:en-usos:windows10-ltsc 2021-x64system
submitted
06/03/2025, 13:58

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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 spyware stealer 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
behavioral1/memory/4028-1-0x0000000000C40000-0x0000000000C4E000-memory.dmp	family_xworm
behavioral1/files/0x0007000000027f0d-48.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
1344	powershell.exe
4968	powershell.exe
4844	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-1-5-21-556327730-4249790997-552795783-1000\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 2 IoCs

pid	Process
1768	XClient.exe
4932	XClient.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

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-1-5-21-556327730-4249790997-552795783-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\XClient = "C:\\Users\\Admin\\AppData\\Roaming\\XClient.exe"	XClient.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\Debug\WIA\wiatrace.log	mspaint.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-556327730-4249790997-552795783-1000_Classes\Local Settings	XClient.exe

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
3684	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1344	powershell.exe
1344	powershell.exe
4968	powershell.exe
4968	powershell.exe
4844	powershell.exe
4844	powershell.exe
3588	mspaint.exe
3588	mspaint.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4028	XClient.exe
Token: SeDebugPrivilege	1344	powershell.exe
Token: SeIncreaseQuotaPrivilege	1344	powershell.exe
Token: SeSecurityPrivilege	1344	powershell.exe
Token: SeTakeOwnershipPrivilege	1344	powershell.exe
Token: SeLoadDriverPrivilege	1344	powershell.exe
Token: SeSystemProfilePrivilege	1344	powershell.exe
Token: SeSystemtimePrivilege	1344	powershell.exe
Token: SeProfSingleProcessPrivilege	1344	powershell.exe
Token: SeIncBasePriorityPrivilege	1344	powershell.exe
Token: SeCreatePagefilePrivilege	1344	powershell.exe
Token: SeBackupPrivilege	1344	powershell.exe
Token: SeRestorePrivilege	1344	powershell.exe
Token: SeShutdownPrivilege	1344	powershell.exe
Token: SeDebugPrivilege	1344	powershell.exe
Token: SeSystemEnvironmentPrivilege	1344	powershell.exe
Token: SeRemoteShutdownPrivilege	1344	powershell.exe
Token: SeUndockPrivilege	1344	powershell.exe
Token: SeManageVolumePrivilege	1344	powershell.exe
Token: 33	1344	powershell.exe
Token: 34	1344	powershell.exe
Token: 35	1344	powershell.exe
Token: 36	1344	powershell.exe
Token: SeDebugPrivilege	4968	powershell.exe
Token: SeIncreaseQuotaPrivilege	4968	powershell.exe
Token: SeSecurityPrivilege	4968	powershell.exe
Token: SeTakeOwnershipPrivilege	4968	powershell.exe
Token: SeLoadDriverPrivilege	4968	powershell.exe
Token: SeSystemProfilePrivilege	4968	powershell.exe
Token: SeSystemtimePrivilege	4968	powershell.exe
Token: SeProfSingleProcessPrivilege	4968	powershell.exe
Token: SeIncBasePriorityPrivilege	4968	powershell.exe
Token: SeCreatePagefilePrivilege	4968	powershell.exe
Token: SeBackupPrivilege	4968	powershell.exe
Token: SeRestorePrivilege	4968	powershell.exe
Token: SeShutdownPrivilege	4968	powershell.exe
Token: SeDebugPrivilege	4968	powershell.exe
Token: SeSystemEnvironmentPrivilege	4968	powershell.exe
Token: SeRemoteShutdownPrivilege	4968	powershell.exe
Token: SeUndockPrivilege	4968	powershell.exe
Token: SeManageVolumePrivilege	4968	powershell.exe
Token: 33	4968	powershell.exe
Token: 34	4968	powershell.exe
Token: 35	4968	powershell.exe
Token: 36	4968	powershell.exe
Token: SeDebugPrivilege	4844	powershell.exe
Token: SeIncreaseQuotaPrivilege	4844	powershell.exe
Token: SeSecurityPrivilege	4844	powershell.exe
Token: SeTakeOwnershipPrivilege	4844	powershell.exe
Token: SeLoadDriverPrivilege	4844	powershell.exe
Token: SeSystemProfilePrivilege	4844	powershell.exe
Token: SeSystemtimePrivilege	4844	powershell.exe
Token: SeProfSingleProcessPrivilege	4844	powershell.exe
Token: SeIncBasePriorityPrivilege	4844	powershell.exe
Token: SeCreatePagefilePrivilege	4844	powershell.exe
Token: SeBackupPrivilege	4844	powershell.exe
Token: SeRestorePrivilege	4844	powershell.exe
Token: SeShutdownPrivilege	4844	powershell.exe
Token: SeDebugPrivilege	4844	powershell.exe
Token: SeSystemEnvironmentPrivilege	4844	powershell.exe
Token: SeRemoteShutdownPrivilege	4844	powershell.exe
Token: SeUndockPrivilege	4844	powershell.exe
Token: SeManageVolumePrivilege	4844	powershell.exe
Token: 33	4844	powershell.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3588	mspaint.exe
3588	mspaint.exe
3588	mspaint.exe
3588	mspaint.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4028 wrote to memory of 1344	4028	XClient.exe	82
PID 4028 wrote to memory of 1344	4028	XClient.exe	82
PID 4028 wrote to memory of 4968	4028	XClient.exe	89
PID 4028 wrote to memory of 4968	4028	XClient.exe	89
PID 4028 wrote to memory of 4844	4028	XClient.exe	91
PID 4028 wrote to memory of 4844	4028	XClient.exe	91
PID 4028 wrote to memory of 3684	4028	XClient.exe	94
PID 4028 wrote to memory of 3684	4028	XClient.exe	94
PID 4028 wrote to memory of 3588	4028	XClient.exe	101
PID 4028 wrote to memory of 3588	4028	XClient.exe	101

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
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4028
- 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:1344
- 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:4968
- 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:4844
- 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:3684
- C:\Windows\system32\mspaint.exe
  "C:\Windows\system32\mspaint.exe" "C:\Users\Admin\AppData\Local\Temp\qkfrcw.png"
  2⤵
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  PID:3588

C:\Users\Admin\AppData\Roaming\XClient.exe
"C:\Users\Admin\AppData\Roaming\XClient.exe"
1⤵
- Executes dropped EXE
PID:1768

C:\Users\Admin\AppData\Roaming\XClient.exe
"C:\Users\Admin\AppData\Roaming\XClient.exe"
1⤵
- Executes dropped EXE
PID:4932

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s DeviceAssociationService
1⤵
PID:2480

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

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

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
60b3262c3163ee3d466199160b9ed07d

SHA1
994ece4ea4e61de0be2fdd580f87e3415f9e1ff6

SHA256
e3b30f16d41f94cba2b8a75f35c91ae7418465abfbfe5477ec0551d1952b2fdb

SHA512
081d2015cb94477eb0fbc38f44b6d9b4a3204fb3ad0b7d0e146a88ab4ab9a0d475207f1adae03f4a81ccc5beb7568dc8be1249f69e32fe56efd9ee2f6ee3b1af

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

Filesize
1KB

MD5
88f3d2470ae68d78459df619659abc02

SHA1
d252b061c740f46597676baa1d98ab9dcc07212b

SHA256
11367173d1927ae6584f97e8ef1ff5ab58216ae2cc86f3998e49b10c88cb9be9

SHA512
17593f5009bf33c9d711f6704a6e2271aba27dd5fc58a0d92bb9508ddcd6bbcdd138e1ff2ce89ea605e24defd9344315c40339ebe70b74587df175803a33a6b3

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_a0dq0tnc.ngl.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\qkfrcw.png

Filesize
17KB

MD5
a466fc11f42a6de40e050c9813947612

SHA1
81845f1a0a98f590d97670c19d0a762123a2a539

SHA256
5047dc90d705a1a50c325fc00b26d5290939c42d6aa727d09e8d21d0537cec85

SHA512
59e3349a9291abe96c663e2f63345ea13c79e9a8a716a9408e74526f05642f1a8d59cc5ae866287299a4aa4a4fb8385f509de0d2dab483ffa6859a6a29c24556

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

Filesize
34KB

MD5
420aaab8a4e68d5730a9e19422a0fe96

SHA1
f4dd350f797169f22c8efd7de8a252b7d2fcf8ae

SHA256
d65824b6d2c191eb48d040261d408ecb3f1d0cf6ef9ceac096543b184582aded

SHA512
fa1ccd03397231387559381aa7762e786b98fa89c02a8b09b6804a14ed0a3ce45ba11bb6b5f7a112a2420a3bd25f708f2ebc4afb281c377dc372fca563e63f98

Download Submit
memory/1344-13-0x00007FFAA0220000-0x00007FFAA0CE2000-memory.dmp

Filesize
10.8MB

Download
memory/1344-18-0x00007FFAA0220000-0x00007FFAA0CE2000-memory.dmp

Filesize
10.8MB

Download
memory/1344-15-0x00007FFAA0220000-0x00007FFAA0CE2000-memory.dmp

Filesize
10.8MB

Download
memory/1344-14-0x00007FFAA0220000-0x00007FFAA0CE2000-memory.dmp

Filesize
10.8MB

Download
memory/1344-2-0x0000022B8F620000-0x0000022B8F642000-memory.dmp

Filesize
136KB

Download
memory/1344-12-0x00007FFAA0220000-0x00007FFAA0CE2000-memory.dmp

Filesize
10.8MB

Download
memory/4028-51-0x00007FFAA0220000-0x00007FFAA0CE2000-memory.dmp

Filesize
10.8MB

Download
memory/4028-50-0x00007FFAA0220000-0x00007FFAA0CE2000-memory.dmp

Filesize
10.8MB

Download
memory/4028-52-0x000000001C3B0000-0x000000001C3BA000-memory.dmp

Filesize
40KB

Download
memory/4028-56-0x0000000002D00000-0x0000000002D0E000-memory.dmp

Filesize
56KB

Download
memory/4028-57-0x000000001FEE0000-0x0000000020408000-memory.dmp

Filesize
5.2MB

Download
memory/4028-0-0x00007FFAA0223000-0x00007FFAA0225000-memory.dmp

Filesize
8KB

Download
memory/4028-61-0x0000000001290000-0x0000000001312000-memory.dmp

Filesize
520KB

Download
memory/4028-1-0x0000000000C40000-0x0000000000C4E000-memory.dmp

Filesize
56KB

Download