Analysis
- max time kernel
148s - max time network
152s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
10/09/2026, 13:03
General
- Target MasonClient.exe
- Size 49KB
- Sample260910-qac9yaha92
- SHA256 91ad000e65f5ef0c0b0fc34cf821f18f03328b2f4a16883bcb097e250e4d5fdc
Malware Config
Extracted
-
neptunerat
-
5so2aq1juc.localto.net:2625
-
filename
USB.exe
-
group
MasonGroup
-
key
1LimkS0svs0OJpPa
-
rat_name
MasonRAT
Signatures
- Family: NeptuneRAT, MasonRAT
NeptuneRAT aka MasonRAT is a trojan written in C#.
- Detects NeptuneRAT stealer 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.
- Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\MasonClient.exe"C:\Users\Admin\AppData\Local\Temp\MasonClient.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
memory/572-0-0x00007FFC8914F000-0x00007FFC89150000-memory.dmp
memory/572-1-0x0000000000460000-0x0000000000472000-memory.dmp
memory/572-2-0x00007FFC88FC0000-0x00007FFC89964000-memory.dmp
memory/572-3-0x00007FFC88FC0000-0x00007FFC89964000-memory.dmp
memory/572-4-0x00007FFC88FC0000-0x00007FFC89964000-memory.dmp
memory/572-5-0x00007FFC88FC0000-0x00007FFC89964000-memory.dmp
memory/572-6-0x00007FFC88FC0000-0x00007FFC89964000-memory.dmp
memory/572-7-0x00007FFC88FC0000-0x00007FFC89964000-memory.dmp
memory/572-8-0x00007FFC88FC0000-0x00007FFC89964000-memory.dmp
memory/572-9-0x00007FFC88FC0000-0x00007FFC89964000-memory.dmp
memory/572-10-0x00007FFC88FC0000-0x00007FFC89964000-memory.dmp