Analysis
- max time kernel
150s - max time network
153s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
22/09/2026, 19:13
Behavioral task
behavioral1
Sample
XClient.exe
Resource
win10v2004-20260911-en
8 signatures
150 seconds
Behavioral task
behavioral2
Sample
XClient.exe
Resource
win11ltsc2024-20260911-en
7 signatures
150 seconds
General
- Target XClient.exe
- Size 30KB
- Sample260922-xw8fjade96
- SHA256 15ca18c6f01b8ca1fe9bc2b386eed8247c79e42ed053ac9a608b747affe4218c
- MD5 2abae8f5455870180e3a21aab16978df
- SHA1 730eff2fe5fb01b16c354f7846cb4bb4070da489
- SHA512 f0495dc54d250ae106b6f0cd92db8da3d7df85e665f10d72a1803bcb019971f869856cd168e8885aac8f45d40a3661de51689168696a0b3f2a24dd97fb069da0
- SSDEEP 768:SHZrtxekwo1YETDNAsbBFR9RXOqh6bLW:2Zr6AAsFFR9RXOqonW
- TLSH T189D24B0877E58327CAEF2FF229B2910103759507D923EF5E4CD886A76F67A8146003EA
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
Malware Config
Extracted
Family
-
xworm
Version
-
3.0
C2
-
87.109.50.187:5000
Mutex
-
3gP1Jtyg0u6fhqUO
Attributes
-
install_file
USB.exe
aes.plain
Signatures
- Detect Xworm Payload 1 IoCs
resource yara_rule behavioral2/memory/5464-1-0x00000000007B0000-0x00000000007BE000-memory.dmp family_xworm - Executes dropped EXE 1 IoCs
pid Process 3216 khzrxc.exe - Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs
Bootkits write to the MBR to gain persistence at a level below the operating system.
description ioc Process File opened for modification \??\PhysicalDrive0 khzrxc.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 5464 XClient.exe Token: 33 988 AUDIODG.EXE Token: SeIncBasePriorityPrivilege 988 AUDIODG.EXE - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 5464 wrote to memory of 3216 5464 XClient.exe 93
Processes
-
C:\Users\Admin\AppData\Local\Temp\XClient.exe"C:\Users\Admin\AppData\Local\Temp\XClient.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5464 -
C:\Users\Admin\AppData\Local\Temp\khzrxc.exe"C:\Users\Admin\AppData\Local\Temp\khzrxc.exe"2⤵
- Executes dropped EXE
- Writes to the Master Boot Record (MBR)
PID:3216
-
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k GPSvcGroup1⤵PID:2932
-
C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x000000000000050C 0x00000000000005101⤵
- Suspicious use of AdjustPrivilegeToken
PID:988
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\khzrxc.exe
- Size 802KB
- SHA256 68a2b9da01ab0d8999c490f680d3e3fa7f12c0ec80a5c1ecae51af6047663cf4
- MD5 d0d0328089b837492585e0da68731986
- SHA1 7a654dc8e8b62bcecb6b4ea6d1bd561f153a672e
- SHA512 0eaf20de487d1831901ed13bec53aa2bb60be4e0be90899cc6fdf88868b5c485d7e180644f508c8668e42654170fadf2df50b1ebc41a0e0f97e7370f75ee05ab
- SSDEEP 12288:zX5Ftmfz8+5HPG7kZFJXHByzhsR3roZeepwU9LNC:z5F41PVPXHByzhqepVLNC
- TLSH T17805384B99558F4CDC2243F75442C8B21D436D8868B486A625FBFE2FB3B609768C7C47
- MD5 SHA1 SHA512 SSDEEP TLSH