Analysis
- max time kernel
148s - max time network
126s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
03/10/2026, 12:55
General
- Target MasonClient.exe
- Size 48KB
- Sample261003-p5w5vsdc49
- SHA256 ff792307c9180baa65e9ac5bcd207c28c48d80f37814b5db67e96bfdc010eb70
Score
10/10
Malware Config
Extracted
Family
-
neptunerat
Attributes
-
filename
MasonUSB.exe
-
group
MasonGroup
-
key
qMyFWc1X9zfSNu1C
-
localhost
127.0.0.1:1417
-
rat_name
MasonRAT
Signatures
- Family: NeptuneRAT, MasonRAT
NeptuneRAT aka MasonRAT is a trojan written in C#.
- Detects NeptuneRAT stealer 1 IoCs
- 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 Matrix
Replay Monitor
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Downloads
memory/1440-0-0x00007FF9F964F000-0x00007FF9F9650000-memory.dmp
memory/1440-1-0x0000000000060000-0x0000000000072000-memory.dmp
memory/1440-2-0x00007FF9F94C0000-0x00007FF9F9E64000-memory.dmp
memory/1440-3-0x00007FF9F94C0000-0x00007FF9F9E64000-memory.dmp
memory/1440-4-0x00007FF9F94C0000-0x00007FF9F9E64000-memory.dmp
memory/1440-5-0x00007FF9F94C0000-0x00007FF9F9E64000-memory.dmp