xworm | 935996d08fff589672a9b02b6b95378af257416620f289af520602136dcba3d2

Analysis

max time kernel
135s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
13/07/2024, 03:02

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General

Target

GPU-UUID-Changer.exe
Size

9.1MB
MD5

3f6c9384490a5eb88d9c6a1b258a9895
SHA1

403e28d2656ed756ea0e8cb29dc2651820b3f208
SHA256

935996d08fff589672a9b02b6b95378af257416620f289af520602136dcba3d2
SHA512

2980ece94859d2c09cd03367e430ddf73a905c83598ed3b0f4cce6fa7b5b6a6e470221b6419b88def3a17d4702397a4f748406500e7bc3381efeab7ed7980aca
SSDEEP

196608:3gJCvHuEdmzjKiQLYAsGcBzG5NF1TvdS7gW:ECPueiQxsANF1vdS7h

Score

10^/10

xworm defense_evasion execution impact persistence ransomware rat trojan

Malware Config

Extracted

Family

xworm

Version

3.1

aid-poly.at.ply.gg:13632

Attributes

Install_directory
%Temp%
install_file
USB.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/files/0x0009000000023419-6.dat	family_xworm
behavioral2/memory/1708-13-0x00000000009F0000-0x0000000000A08000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Deletes shadow copies 3 TTPs
Ransomware often targets backup files to inhibit system recovery.
ransomware defense_evasion impact execution

File Deletion
T1070.004

Inhibit System Recovery
T1490

Windows Management Instrumentation
T1047

Checks computer location settings 2 TTPs 2 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-1-5-21-47134698-4092160662-1261813102-1000\Control Panel\International\Geo\Nation	GPU-UUID-Changer.exe
Key value queried	\REGISTRY\USER\S-1-5-21-47134698-4092160662-1261813102-1000\Control Panel\International\Geo\Nation	spoof.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 4 IoCs

pid	Process
1708	spoof.exe
1260	GPU-UUID-Changer.exe
1384	spoof.exe
2820	spoof.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-1-5-21-47134698-4092160662-1261813102-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\spoof = "C:\\Users\\Admin\\AppData\\Local\\Temp\\spoof.exe"	spoof.exe

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
12	ip-api.com

Drops file in System32 directory 7 IoCs

description	ioc	Process
File opened for modification	C:\Windows\system32\wbem\repository\MAPPING2.MAP	svchost.exe
File opened for modification	C:\Windows\system32\wbem\repository\MAPPING3.MAP	svchost.exe
File opened for modification	C:\Windows\system32\wbem\repository\OBJECTS.DATA	svchost.exe
File opened for modification	C:\Windows\system32\wbem\repository\INDEX.BTR	svchost.exe
File opened for modification	C:\Windows\system32\wbem\repository	svchost.exe
File opened for modification	C:\Windows\system32\wbem\repository\WRITABLE.TST	svchost.exe
File opened for modification	C:\Windows\system32\wbem\repository\MAPPING1.MAP	svchost.exe

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

System Information Discovery
T1082

Enumerates system info in registry 2 TTPs 9 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0\DiskController\1\DiskPeripheral	GPU-UUID-Changer.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0\DiskController\2\DiskPeripheral	GPU-UUID-Changer.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0KeyboardController\0KeyboardPeripheral\0	GPU-UUID-Changer.exe
Key enumerated	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0\DiskController\0\DiskPeripheral	GPU-UUID-Changer.exe
Key queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0\DiskController\0\DiskPeripheral	GPU-UUID-Changer.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0\DiskController\0\DiskPeripheral\0	GPU-UUID-Changer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0\DiskController\0\DiskPeripheral\0\Identifier	GPU-UUID-Changer.exe
Set value (str)	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0\DiskController\0\DiskPeripheral\0\Identifier = "e0df3c7e-bb980fd1-f"	GPU-UUID-Changer.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\MultifunctionAdapter\0\DiskController\0\DiskPeripheral	GPU-UUID-Changer.exe

Interacts with shadow copies 3 TTPs 1 IoCs

Shadow copies are often targeted by ransomware to inhibit system recovery.

ransomware

File Deletion

T1070.004

Inhibit System Recovery

T1490

Direct Volume Access

T1006

pid	Process
3024	vssadmin.exe

Runs net.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
2612	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1260	GPU-UUID-Changer.exe
1260	GPU-UUID-Changer.exe
1260	GPU-UUID-Changer.exe
1260	GPU-UUID-Changer.exe
1708	spoof.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	1708	spoof.exe
Token: SeBackupPrivilege	1312	vssvc.exe
Token: SeRestorePrivilege	1312	vssvc.exe
Token: SeAuditPrivilege	1312	vssvc.exe
Token: SeAssignPrimaryTokenPrivilege	1484	svchost.exe
Token: SeIncreaseQuotaPrivilege	1484	svchost.exe
Token: SeSecurityPrivilege	1484	svchost.exe
Token: SeTakeOwnershipPrivilege	1484	svchost.exe
Token: SeLoadDriverPrivilege	1484	svchost.exe
Token: SeSystemtimePrivilege	1484	svchost.exe
Token: SeBackupPrivilege	1484	svchost.exe
Token: SeRestorePrivilege	1484	svchost.exe
Token: SeShutdownPrivilege	1484	svchost.exe
Token: SeSystemEnvironmentPrivilege	1484	svchost.exe
Token: SeUndockPrivilege	1484	svchost.exe
Token: SeManageVolumePrivilege	1484	svchost.exe
Token: SeAssignPrimaryTokenPrivilege	1484	svchost.exe
Token: SeIncreaseQuotaPrivilege	1484	svchost.exe
Token: SeSecurityPrivilege	1484	svchost.exe
Token: SeTakeOwnershipPrivilege	1484	svchost.exe
Token: SeLoadDriverPrivilege	1484	svchost.exe
Token: SeSystemtimePrivilege	1484	svchost.exe
Token: SeBackupPrivilege	1484	svchost.exe
Token: SeRestorePrivilege	1484	svchost.exe
Token: SeShutdownPrivilege	1484	svchost.exe
Token: SeSystemEnvironmentPrivilege	1484	svchost.exe
Token: SeUndockPrivilege	1484	svchost.exe
Token: SeManageVolumePrivilege	1484	svchost.exe
Token: SeAssignPrimaryTokenPrivilege	1484	svchost.exe
Token: SeIncreaseQuotaPrivilege	1484	svchost.exe
Token: SeSecurityPrivilege	1484	svchost.exe
Token: SeTakeOwnershipPrivilege	1484	svchost.exe
Token: SeLoadDriverPrivilege	1484	svchost.exe
Token: SeSystemtimePrivilege	1484	svchost.exe
Token: SeBackupPrivilege	1484	svchost.exe
Token: SeRestorePrivilege	1484	svchost.exe
Token: SeShutdownPrivilege	1484	svchost.exe
Token: SeSystemEnvironmentPrivilege	1484	svchost.exe
Token: SeUndockPrivilege	1484	svchost.exe
Token: SeManageVolumePrivilege	1484	svchost.exe
Token: SeAssignPrimaryTokenPrivilege	1484	svchost.exe
Token: SeIncreaseQuotaPrivilege	1484	svchost.exe
Token: SeSecurityPrivilege	1484	svchost.exe
Token: SeTakeOwnershipPrivilege	1484	svchost.exe
Token: SeLoadDriverPrivilege	1484	svchost.exe
Token: SeSystemtimePrivilege	1484	svchost.exe
Token: SeBackupPrivilege	1484	svchost.exe
Token: SeRestorePrivilege	1484	svchost.exe
Token: SeShutdownPrivilege	1484	svchost.exe
Token: SeSystemEnvironmentPrivilege	1484	svchost.exe
Token: SeUndockPrivilege	1484	svchost.exe
Token: SeManageVolumePrivilege	1484	svchost.exe
Token: SeAssignPrimaryTokenPrivilege	1484	svchost.exe
Token: SeIncreaseQuotaPrivilege	1484	svchost.exe
Token: SeSecurityPrivilege	1484	svchost.exe
Token: SeTakeOwnershipPrivilege	1484	svchost.exe
Token: SeLoadDriverPrivilege	1484	svchost.exe
Token: SeSystemtimePrivilege	1484	svchost.exe
Token: SeBackupPrivilege	1484	svchost.exe
Token: SeRestorePrivilege	1484	svchost.exe
Token: SeShutdownPrivilege	1484	svchost.exe
Token: SeSystemEnvironmentPrivilege	1484	svchost.exe
Token: SeUndockPrivilege	1484	svchost.exe
Token: SeManageVolumePrivilege	1484	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1708	spoof.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 1336 wrote to memory of 1708	1336	GPU-UUID-Changer.exe	86
PID 1336 wrote to memory of 1708	1336	GPU-UUID-Changer.exe	86
PID 1336 wrote to memory of 1260	1336	GPU-UUID-Changer.exe	87
PID 1336 wrote to memory of 1260	1336	GPU-UUID-Changer.exe	87
PID 1260 wrote to memory of 3728	1260	GPU-UUID-Changer.exe	89
PID 1260 wrote to memory of 3728	1260	GPU-UUID-Changer.exe	89
PID 3728 wrote to memory of 3024	3728	cmd.exe	90
PID 3728 wrote to memory of 3024	3728	cmd.exe	90
PID 1260 wrote to memory of 1880	1260	GPU-UUID-Changer.exe	93
PID 1260 wrote to memory of 1880	1260	GPU-UUID-Changer.exe	93
PID 1880 wrote to memory of 2408	1880	cmd.exe	94
PID 1880 wrote to memory of 2408	1880	cmd.exe	94
PID 2408 wrote to memory of 5012	2408	net.exe	95
PID 2408 wrote to memory of 5012	2408	net.exe	95
PID 1708 wrote to memory of 2612	1708	spoof.exe	99
PID 1708 wrote to memory of 2612	1708	spoof.exe	99
PID 1260 wrote to memory of 3104	1260	GPU-UUID-Changer.exe	101
PID 1260 wrote to memory of 3104	1260	GPU-UUID-Changer.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
Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Users\Admin\AppData\Local\Temp\GPU-UUID-Changer.exe
"C:\Users\Admin\AppData\Local\Temp\GPU-UUID-Changer.exe"
1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:1336
- C:\Users\Admin\AppData\Roaming\spoof.exe
  "C:\Users\Admin\AppData\Roaming\spoof.exe"
  2⤵
  - Checks computer location settings
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:1708
- - C:\Windows\System32\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "spoof" /tr "C:\Users\Admin\AppData\Local\Temp\spoof.exe"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2612
- C:\Users\Admin\AppData\Roaming\GPU-UUID-Changer.exe
  "C:\Users\Admin\AppData\Roaming\GPU-UUID-Changer.exe"
  2⤵
  - Executes dropped EXE
  - Enumerates system info in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1260
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c vssadmin delete shadows /All /Quiet
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3728
  - - C:\Windows\system32\vssadmin.exe
      vssadmin delete shadows /All /Quiet
      4⤵
      Interacts with shadow copies
      PID:3024
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c net stop winmgmt /Y
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:1880
  - - C:\Windows\system32\net.exe
      net stop winmgmt /Y
      4⤵
      Suspicious use of WriteProcessMemory
      PID:2408
    - - C:\Windows\system32\net1.exe
        
        C:\Windows\system32\net1 stop winmgmt /Y
        5⤵
        
        PID:5012
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /c exit
    3⤵
    PID:3104

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1312

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s Winmgmt
1⤵
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
PID:1484

C:\Users\Admin\AppData\Local\Temp\spoof.exe
C:\Users\Admin\AppData\Local\Temp\spoof.exe
1⤵
- Executes dropped EXE
PID:1384

C:\Users\Admin\AppData\Local\Temp\spoof.exe
C:\Users\Admin\AppData\Local\Temp\spoof.exe
1⤵
- Executes dropped EXE
PID:2820

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Windows Management Instrumentation

T1047

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

Direct Volume Access

T1006

Indicator Removal

T1070

File Deletion

T1070.004

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Inhibit System Recovery

T1490

Replay Monitor

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Downloads

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

Filesize
654B

MD5
2ff39f6c7249774be85fd60a8f9a245e

SHA1
684ff36b31aedc1e587c8496c02722c6698c1c4e

SHA256
e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

SHA512
1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

Download Submit
C:\Users\Admin\AppData\Roaming\GPU-UUID-Changer.exe

Filesize
9.1MB

MD5
d017dce19ccb6058d97506dcea7a8d8e

SHA1
c2789af6e67fb530b64da82ced1355f4494ff1bd

SHA256
b4a5ac199048621eef42ad480aa9379a6ac76dbae08ca4b170da9e970b48e059

SHA512
04d504f551ab762b69174c01dfec82611a43125aea670d7070162268542b3dd95c519bc93e51e8490c122c834a87a85c76fed3c2bea601742b951713624405c3

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

Filesize
68KB

MD5
3e1a0d74fd0db1063ca1497041470a32

SHA1
932b8d0954102add2461cf203ccb96a35b1ddef7

SHA256
1c655e32a859ce3fe86a6e9ebb810c4e848bebd2f83db91af991771639df76b6

SHA512
561e53db8bec69f6bb9029ba7a245067305ffcfc133a53b3b68c4d5d3f7b9acc71db60afff9f2e3fdfbb55e50ede13362fb2b2e8897b89f36f7543da9cc144cf

Download Submit
memory/1260-32-0x00007FF736DE0000-0x00007FF737E41000-memory.dmp

Filesize
16.4MB

Download
memory/1260-25-0x00007FF736E0D000-0x00007FF73752F000-memory.dmp

Filesize
7.1MB

Download
memory/1260-24-0x00007FF87EA70000-0x00007FF87EA72000-memory.dmp

Filesize
8KB

Download
memory/1260-27-0x00007FF736DE0000-0x00007FF737E41000-memory.dmp

Filesize
16.4MB

Download
memory/1260-33-0x00007FF736E0D000-0x00007FF73752F000-memory.dmp

Filesize
7.1MB

Download
memory/1336-1-0x0000000000B50000-0x000000000147A000-memory.dmp

Filesize
9.2MB

Download
memory/1336-0-0x00007FF860673000-0x00007FF860675000-memory.dmp

Filesize
8KB

Download
memory/1708-13-0x00000000009F0000-0x0000000000A08000-memory.dmp

Filesize
96KB

Download
memory/1708-29-0x000000001B6E0000-0x000000001B6F0000-memory.dmp

Filesize
64KB

Download
memory/1708-40-0x00007FF860670000-0x00007FF861131000-memory.dmp

Filesize
10.8MB

Download
memory/1708-41-0x000000001B6E0000-0x000000001B6F0000-memory.dmp

Filesize
64KB

Download
memory/1708-14-0x00007FF860670000-0x00007FF861131000-memory.dmp

Filesize
10.8MB

Download