xworm | c7b4ab9cf38108798831e0729182cd723b8c5704b976878066b7123f15734807

Analysis

max time kernel
105s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20250619-en
resource tags

arch:x64arch:x86image:win10v2004-20250619-enlocale:en-usos:windows10-2004-x64system
submitted
13/08/2025, 04:27

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General

Target
XWormClient.exe
Size 71KB
Sample250813-e28dlsv1ct
SHA256 c7b4ab9cf38108798831e0729182cd723b8c5704b976878066b7123f15734807
MD5 356b9458ba747cfcbfb4d081d8fe6e67
SHA1 764734b1e20435e1864bf7872d9020b1f998e4c6
SHA512 db8de0e1d5eff2d84a54b759bb5f20161e246b4ec11632a8b08fb3384322a993f8b26947f7a853d39b1cc892e3ef327565b6796aff835e7507f681c1dbc1cfff
SSDEEP 1536:Eq2I6WbhJuU57nID+b5JIGGItwiZ+ff/6FOV+U4e9GhS:fbnuUtC+bbnZrOV+U4WGA
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

XWorm V6.0

return-aug.gl.at.ply.gg:39431

Attributes

Install_directory
%AppData%
install_file
Com Surrogate.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral1/memory/4352-0-0x00000000009F0000-0x0000000000A08000-memory.dmp	family_xworm
behavioral1/files/0x000200000001e76b-55.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 4 IoCs

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

execution

PowerShell

T1059.001

pid	Process
3264	powershell.exe
3272	powershell.exe
4132	powershell.exe
2716	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-1-5-21-636600838-1632888396-3521553955-1000\Control Panel\International\Geo\Nation	XWormClient.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 2 IoCs

pid	Process
1020	Com Surrogate.exe
6080	Com Surrogate.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-1-5-21-636600838-1632888396-3521553955-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Com Surrogate = "C:\\Users\\Admin\\AppData\\Roaming\\Com Surrogate.exe"	XWormClient.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
1100	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
3272	powershell.exe
3272	powershell.exe
4132	powershell.exe
4132	powershell.exe
2716	powershell.exe
2716	powershell.exe
3264	powershell.exe
3264	powershell.exe
4352	XWormClient.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	4352	XWormClient.exe
Token: SeDebugPrivilege	3272	powershell.exe
Token: SeDebugPrivilege	4132	powershell.exe
Token: SeDebugPrivilege	2716	powershell.exe
Token: SeDebugPrivilege	3264	powershell.exe
Token: SeDebugPrivilege	4352	XWormClient.exe
Token: SeDebugPrivilege	1020	Com Surrogate.exe
Token: SeDebugPrivilege	6080	Com Surrogate.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4352	XWormClient.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4352 wrote to memory of 3272	4352	XWormClient.exe	84
PID 4352 wrote to memory of 3272	4352	XWormClient.exe	84
PID 4352 wrote to memory of 4132	4352	XWormClient.exe	86
PID 4352 wrote to memory of 4132	4352	XWormClient.exe	86
PID 4352 wrote to memory of 2716	4352	XWormClient.exe	88
PID 4352 wrote to memory of 2716	4352	XWormClient.exe	88
PID 4352 wrote to memory of 3264	4352	XWormClient.exe	90
PID 4352 wrote to memory of 3264	4352	XWormClient.exe	90
PID 4352 wrote to memory of 1100	4352	XWormClient.exe	92
PID 4352 wrote to memory of 1100	4352	XWormClient.exe	92

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\XWormClient.exe
"C:\Users\Admin\AppData\Local\Temp\XWormClient.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:4352
- 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\XWormClient.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3272
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XWormClient.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4132
- 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\Com Surrogate.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2716
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Com Surrogate.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3264
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "Com Surrogate" /tr "C:\Users\Admin\AppData\Roaming\Com Surrogate.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:1100

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c C:\Users\Admin\AppData\Roaming\Com Surrogate.exe
1⤵
PID:4040

C:\Users\Admin\AppData\Roaming\Com Surrogate.exe
"C:\Users\Admin\AppData\Roaming\Com Surrogate.exe"
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1020

C:\Users\Admin\AppData\Roaming\Com Surrogate.exe
"C:\Users\Admin\AppData\Roaming\Com Surrogate.exe"
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:6080

Network

MITRE ATT&CK Enterprise v16

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

Com Surrogate.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\Com Surrogate.exe.log
Size 654B
SHA256 e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced
MD5 2ff39f6c7249774be85fd60a8f9a245e
SHA1 684ff36b31aedc1e587c8496c02722c6698c1c4e
SHA512 1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1
MD5 SHA1 SHA512

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powershell.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
Size 2KB
SHA256 84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
MD5 d85ba6ff808d9e5444a4b369f5bc2730
SHA1 31aa9d96590fff6981b315e0b391b575e4c0804a
SHA512 8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249
MD5 SHA1 SHA512

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 944B
SHA256 16c05848744983bd75fe403c1aa3aded96c6baf10b77fe95d9f4b52d8422daac
MD5 51fc9f46ed7a5fbec980d47049731eac
SHA1 1811612998c800bb4563742c4760b2ab3a5e2677
SHA512 e55ea8fe57f30d236b3ba8cd327e53dac090bb71ef7899b536a4acccd997a6aa232d9b80e0995a536975aeb13cfe29eda27b630393683e3825660224d96b8a15
MD5 SHA1 SHA512

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 944B
SHA256 718dc2f5f4a6dbb7fab7f3db05bd7f602fb16526caae7084ab46c3ab4e7bad35
MD5 65a68df1062af34622552c4f644a5708
SHA1 6f6ecf7b4b635abb0b132d95dac2759dc14b50af
SHA512 4e460eb566032942547b58411222dd26ae300a95f83cf5ae6df58ebd28594341123611b348bd4031a33bc7f38307d5cb8fb677bba8c896919e3eee677a104d4d
MD5 SHA1 SHA512

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 944B
SHA256 c88e4bbb64f7fa31429ebe82c1cf07785c44486f37576f783a26ac856e02a4eb
MD5 9bc110200117a3752313ca2acaf8a9e1
SHA1 fda6b7da2e7b0175b391475ca78d1b4cf2147cd3
SHA512 1f1af32aa18a8cbfcc65b0d4fb7e6ca2705f125eaa85789e981ee68b90c64522e954825abf460d4b4f97567715dfae8d9b0a25a4d54d10bc4c257c472f2e80fb
MD5 SHA1 SHA512

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__PSScriptPolicyTest_pb31rgma.t44.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_pb31rgma.t44.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

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Com Surrogate.exe

Path C:\Users\Admin\AppData\Roaming\Com Surrogate.exe
Size 71KB
SHA256 c7b4ab9cf38108798831e0729182cd723b8c5704b976878066b7123f15734807
MD5 356b9458ba747cfcbfb4d081d8fe6e67
SHA1 764734b1e20435e1864bf7872d9020b1f998e4c6
SHA512 db8de0e1d5eff2d84a54b759bb5f20161e246b4ec11632a8b08fb3384322a993f8b26947f7a853d39b1cc892e3ef327565b6796aff835e7507f681c1dbc1cfff
SSDEEP 1536:Eq2I6WbhJuU57nID+b5JIGGItwiZ+ff/6FOV+U4e9GhS:fbnuUtC+bbnZrOV+U4WGA
MD5 SHA1 SHA512 SSDEEP

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memory/3272-3-0x00000146B1CD0000-0x00000146B1CF2000-memory.dmp

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memory/3272-2-0x00000146B1D20000-0x00000146B1D30000-memory.dmp

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memory/3272-1-0x00000146B1D20000-0x00000146B1D30000-memory.dmp

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memory/4352-0-0x00000000009F0000-0x0000000000A08000-memory.dmp

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memory/4352-53-0x000000001B7E0000-0x000000001B7F0000-memory.dmp

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memory/4352-54-0x000000001B7E0000-0x000000001B7F0000-memory.dmp

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memory/4352-59-0x000000001C870000-0x000000001CA06000-memory.dmp

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