Analysis
- user interaction
yes - max time kernel
82s - max time network
154s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
05/08/2026, 05:21
General
- Target ugbvxgnp.exe
- Size 53KB
- Sample260805-f2ft2aea95
- SHA256 7043ebcb444a82382829c529564093769cb30c5ee0ea1871e64a26988619de92
Malware Config
Extracted
-
neptunerat
-
143.14.44.56:1417
-
filename
USB.exe
-
group
MasonGroup
-
key
x7Dn8m346c6Sf2ow
-
rat_name
MasonRAT
Signatures
- Family: NeptuneRAT, MasonRAT
NeptuneRAT aka MasonRAT is a trojan written in C#.
- Detects NeptuneRAT stealer 2 IoCs
- Executes dropped EXE 2 IoCs
- Adds Run key to start application 2 TTPs 1 IoCs
- Contacts third-party web service commonly abused for C2 1 TTPs 2 IoCs
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 1 IoCs
- 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.
Processes
-
C:\Users\Admin\AppData\Local\Temp\ugbvxgnp.exe"C:\Users\Admin\AppData\Local\Temp\ugbvxgnp.exe"1⤵
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\System32\schtasks.exe"C:\Windows\System32\schtasks.exe" /create /f /sc minute /mo 1 /tn "ugbvxgnp" /tr "C:\Users\Admin\AppData\Roaming\ugbvxgnp.exe"2⤵
- Scheduled Task/Job: Scheduled Task
-
-
C:\Users\Admin\AppData\Roaming\ugbvxgnp.exeC:\Users\Admin\AppData\Roaming\ugbvxgnp.exe1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
-
C:\Users\Admin\AppData\Roaming\ugbvxgnp.exe"C:\Users\Admin\AppData\Roaming\ugbvxgnp.exe"1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
-
C:\Users\Admin\AppData\Roaming\ugbvxgnp.exe"C:\Users\Admin\AppData\Roaming\ugbvxgnp.exe"1⤵
Network
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1Replay Monitor
Loading Replay Monitor...
Downloads
ugbvxgnp.exe
memory/1964-12-0x00007FFF9EBB0000-0x00007FFF9F554000-memory.dmp
memory/1964-11-0x00007FFF9EBB0000-0x00007FFF9F554000-memory.dmp
memory/1964-3-0x00007FFF9EBB0000-0x00007FFF9F554000-memory.dmp
memory/1964-4-0x00007FFF9EBB0000-0x00007FFF9F554000-memory.dmp
memory/1964-5-0x00007FFF9EBB0000-0x00007FFF9F554000-memory.dmp
memory/1964-6-0x00007FFF9EBB0000-0x00007FFF9F554000-memory.dmp
memory/1964-1-0x0000000000D90000-0x0000000000DA4000-memory.dmp
memory/1964-17-0x00007FFF9EBB0000-0x00007FFF9F554000-memory.dmp
memory/1964-2-0x00007FFF9EBB0000-0x00007FFF9F554000-memory.dmp
memory/1964-9-0x00007FFF9EBB0000-0x00007FFF9F554000-memory.dmp
memory/1964-10-0x00007FFF9EBB0000-0x00007FFF9F554000-memory.dmp
memory/1964-0-0x00007FFF9ED3F000-0x00007FFF9ED40000-memory.dmp
memory/1964-13-0x00007FFF9EBB0000-0x00007FFF9F554000-memory.dmp
memory/1964-14-0x00007FFF9EBB0000-0x00007FFF9F554000-memory.dmp
memory/1964-15-0x00007FFF9EBB0000-0x00007FFF9F554000-memory.dmp
memory/1964-16-0x00007FFF9EBB0000-0x00007FFF9F554000-memory.dmp
memory/4348-8-0x00007FFF9EBB0000-0x00007FFF9F554000-memory.dmp
memory/4348-18-0x00007FFF9EBB0000-0x00007FFF9F554000-memory.dmp