Analysis
- max time kernel
149s - max time network
147s - platform
windows11-21h2_x64 - resource
win11-20251015-en - resource tags
- submitted
21/10/2025, 04:26
General
- Target SKM_C300i2510201438065959565985959595959_65535656535.PDF.exe
- Size 527KB
- Sample251021-e2scdse12b
- SHA256 2cd68c73f407a88d29c7599a427f747f4f686dd12c33be96589d49f2f879d080
Malware Config
Extracted
-
xworm
-
5.0
-
104.250.180.178:7061
-
nad1XgX6V6D7Ls0K
-
Install_directory
%AppData%
-
install_file
XWormClient.exe
Signatures
- Detect Xworm Payload 1 IoCs
- Xworm
Xworm is a remote access trojan written in C#.
- Xworm family
- Drops startup file 2 IoCs
- SmartAssembly .NET packer 1 IoCs
Detects SmartAssembly .NET packer.
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\SKM_C300i2510201438065959565985959595959_65535656535.PDF.exe"C:\Users\Admin\AppData\Local\Temp\SKM_C300i2510201438065959565985959595959_65535656535.PDF.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\SKM_C300i2510201438065959565985959595959_65535656535.PDF.exe"C:\Users\Admin\AppData\Local\Temp\SKM_C300i2510201438065959565985959595959_65535656535.PDF.exe"2⤵
- Drops startup file
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
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Downloads
SKM_C300i2510201438065959565985959595959_65535656535.PDF.exe.log
memory/1332-6-0x0000000005A10000-0x0000000005A26000-memory.dmp
memory/1332-2-0x0000000005570000-0x0000000005602000-memory.dmp
memory/1332-3-0x0000000005800000-0x0000000005810000-memory.dmp
memory/1332-4-0x00000000054F0000-0x00000000054FA000-memory.dmp
memory/1332-5-0x0000000005810000-0x00000000058AC000-memory.dmp
memory/1332-0-0x00000000009D0000-0x0000000000A5A000-memory.dmp
memory/1332-7-0x0000000005800000-0x0000000005810000-memory.dmp
memory/1332-8-0x0000000006D40000-0x0000000006D94000-memory.dmp
memory/1332-1-0x0000000005B20000-0x00000000060C6000-memory.dmp
memory/5036-9-0x0000000000400000-0x0000000000410000-memory.dmp
memory/5036-16-0x0000000005AE0000-0x0000000005AF0000-memory.dmp
memory/5036-17-0x0000000006850000-0x00000000068B6000-memory.dmp
memory/5036-18-0x0000000005AE0000-0x0000000005AF0000-memory.dmp