Analysis
- max time kernel
148s - max time network
140s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows - submitted
24/09/2026, 12:45
Behavioral task
behavioral1
Sample
XClient.exe
Resource
win10v2004-20260911-en
Behavioral task
behavioral2
Sample
XClient.exe
Resource
win11ltsc2024-20260911-en
General
- Target XClient.exe
- Size 32KB
- Sample260924-py3dasss3k
- SHA256 558f4d83a90a3e8c8a56960e6d793e1772fd1d7b87e9da3b09b09f082dccb71c
- MD5 9b789908506000a65c033a91567aa2aa
- SHA1 c3ab3125201805fd7a332b1d942fd6eff268c172
- SHA512 8dd141ff1df147bd16a2d1abd72867fd35f4cc9a0540ed4243cab8cbd5d2b7a421a6a1fced232f34eb2b5aff2f67459d63d2637c80d3360733c5536925061d69
- SSDEEP 768:jnyi8cvm0yGRnyGYKZhFy89/wOjhFcOj:jnxb9yABYKjF79/wOjXj
- TLSH T17DE26D4877D28326C6EE1BF06C73A2450379F2079A27EB4E5CC8855A7B677C289013E6
- MD5 SHA1 SHA512 SSDEEP TLSH
Malware Config
Extracted
-
xworm
-
3.0
-
82.47.102.179:5001
-
431fDc4L3mvZEUlE
-
Install_directory
%Userprofile%
-
install_file
USB.exe
Signatures
- Detect Xworm Payload 1 IoCs
resource yara_rule behavioral2/memory/5804-1-0x00000000008E0000-0x00000000008EE000-memory.dmp family_xworm - Creates a file in the Startup directory 1 TTPs 2 IoCs
A file was written to a Windows startup folder. Files in these directories are executed automatically when a user logs on or an application initializes.
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 1 IoCs
pid Process 1380 drsdir.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 drsdir.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language drsdir.exe - Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 5804 XClient.exe Token: SeDebugPrivilege 5804 XClient.exe Token: 33 2480 AUDIODG.EXE Token: SeIncBasePriorityPrivilege 2480 AUDIODG.EXE - Suspicious use of WriteProcessMemory 1 IoCs
description pid Process procid_target PID 5804 wrote to memory of 1380 5804 XClient.exe 91
Processes
-
C:\Users\Admin\AppData\Local\Temp\XClient.exe"C:\Users\Admin\AppData\Local\Temp\XClient.exe"1⤵
- Creates a file in the Startup directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5804 -
C:\Users\Admin\AppData\Local\Temp\drsdir.exe"C:\Users\Admin\AppData\Local\Temp\drsdir.exe"2⤵
- Executes dropped EXE
- Writes to the Master Boot Record (MBR)
- System Location Discovery: System Language Discovery
PID:1380
-
-
C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x00000000000004CC 0x00000000000004C81⤵
- Suspicious use of AdjustPrivilegeToken
PID:2480
Network
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Pre-OS Boot
1Bootkit
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\drsdir.exe
- Size 4.6MB
- SHA256 22bcf19d969c980ea0cbf3fd50c674831e8f8bb886e1381983cc4f21a0bd375b
- MD5 65f19f7a7cfde18ce5825c6a50212033
- SHA1 8e6a5af6e5345e021d7684c95d5da630a81d801d
- SHA512 d5dbd83058527a76c19c73daedd5e2cdf3c0b64e8744fa5c93f8425da41c2b03fc22bdd29a91616615ee31b712e399641588114a89c7af7ca47e2c9989086e59
- SSDEEP 98304:iP5CM1W5mXwxxAEP5CM1W5mXwxxALeDe:iP5CoW0APP5CoW0A
- TLSH T1D426F1A3E6524C1EE96123B88071DE799D276ED47831832A55F9FC2FBA331C21CD7096
- MD5 SHA1 SHA512 SSDEEP TLSH