Analysis
- max time kernel
150s - max time network
153s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
16/09/2026, 15:58
General
- Target systemm.exe
- Size 7.2MB
- Sample260916-tepejs1tcx
- SHA256 8b8863c9714248efbb2131e82e53c30a5627c4e051c98fe758caa22f1b3985d8
Malware Config
Extracted
-
xworm
-
3.0
-
82.47.101.153:7165
-
W5UazQxWqWYqnndf
-
install_file
USB.exe
Signatures
- Family: Xworm
Xworm is a remote access trojan written in C#.
- Detect Xworm Payload 2 IoCs
- .NET Reactor proctector 1 IoCs
Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.
- Executes dropped EXE 3 IoCs
- 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.
- 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.
- Suspicious behavior: EnumeratesProcesses 23 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of SendNotifyMessage 1 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\systemm.exe"C:\Users\Admin\AppData\Local\Temp\systemm.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\system.exe"C:\Users\Admin\AppData\Local\system.exe"2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\dvextl.exe"C:\Users\Admin\AppData\Local\Temp\dvextl.exe"3⤵
- Executes dropped EXE
- Writes to the Master Boot Record (MBR)
- System Location Discovery: System Language Discovery
-
-
-
C:\Users\Admin\AppData\Local\XWorm V3.0.exe"C:\Users\Admin\AppData\Local\XWorm V3.0.exe"2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
-
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C:\Windows\system32\wbem\WmiApSrv.exeC:\Windows\system32\wbem\WmiApSrv.exe1⤵
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C:\Windows\system32\AUDIODG.EXEC:\Windows\system32\AUDIODG.EXE 0x00000000000004E0 0x00000000000004E81⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
dvextl.exe
XWorm V3.0.exe
system.exe
memory/2888-57-0x0000000005510000-0x00000000055A2000-memory.dmp
memory/2888-56-0x0000000000390000-0x000000000039C000-memory.dmp
memory/3416-26-0x00007FFB2F4D0000-0x00007FFB2FE74000-memory.dmp
memory/3416-14-0x00000000003D0000-0x00000000003DE000-memory.dmp
memory/3416-47-0x0000000000B90000-0x0000000000B9A000-memory.dmp
memory/3416-43-0x00007FFB2F4D0000-0x00007FFB2FE74000-memory.dmp
memory/3416-41-0x00007FFB2F4D0000-0x00007FFB2FE74000-memory.dmp
memory/3416-40-0x00007FFB2F4D0000-0x00007FFB2FE74000-memory.dmp
memory/3416-38-0x00007FFB2F4D0000-0x00007FFB2FE74000-memory.dmp
memory/3988-20-0x00007FFB2F4D0000-0x00007FFB2FE74000-memory.dmp
memory/3988-24-0x00007FFB2F4D0000-0x00007FFB2FE74000-memory.dmp
memory/3988-1-0x0000000000A60000-0x0000000001194000-memory.dmp
memory/3988-2-0x00007FFB2F4D0000-0x00007FFB2FE74000-memory.dmp
memory/3988-11-0x00007FFB2F4D0000-0x00007FFB2FE74000-memory.dmp
memory/3988-13-0x00007FFB2F4D0000-0x00007FFB2FE74000-memory.dmp
memory/3988-0-0x00007FFB2F65F000-0x00007FFB2F660000-memory.dmp
memory/3988-4-0x00007FFB2F4D0000-0x00007FFB2FE74000-memory.dmp
memory/4908-31-0x000001B2F4AA0000-0x000001B2F55B6000-memory.dmp
memory/4908-37-0x00007FFB2F4D0000-0x00007FFB2FE74000-memory.dmp
memory/4908-25-0x000001B2D7B90000-0x000001B2D82BA000-memory.dmp
memory/4908-39-0x00007FFB2F4D0000-0x00007FFB2FE74000-memory.dmp
memory/4908-36-0x00007FFB2F4D0000-0x00007FFB2FE74000-memory.dmp
memory/4908-33-0x00007FFB2F4D0000-0x00007FFB2FE74000-memory.dmp
memory/4908-42-0x00007FFB2F4D0000-0x00007FFB2FE74000-memory.dmp
memory/4908-32-0x00007FFB2F4D0000-0x00007FFB2FE74000-memory.dmp
memory/4908-27-0x00007FFB2F4D0000-0x00007FFB2FE74000-memory.dmp
memory/4908-30-0x00007FFB2F4D0000-0x00007FFB2FE74000-memory.dmp
memory/4908-29-0x00007FFB2F4D0000-0x00007FFB2FE74000-memory.dmp
memory/4908-28-0x00007FFB2F4D0000-0x00007FFB2FE74000-memory.dmp