Analysis
- user interaction
yes - max time kernel
51s - max time network
54s - platform
windows10-ltsc_2021_x64 - resource
win10ltsc2021-20260513-en - resource tags
- submitted
04/08/2026, 19:55
General
- Target MasonClient.exe
- Size 49KB
- Sample260804-ynb8ssga79
- SHA256 9204ce2a7c3634a9bcfd6a84c586968c159ef97ae2a688d0a3879ecd197a4311
Score
10/10
Malware Config
Extracted
Family
-
neptunerat
C2
-
94.156.250.190:1337
Attributes
-
filename
USB.exe
-
group
MasonGroup
-
key
TvtCM3U0sz5caRyH
-
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/5056-0-0x00000000004B0000-0x00000000004C2000-memory.dmp
memory/5056-1-0x000000001B380000-0x000000001B390000-memory.dmp
memory/5056-2-0x000000001B380000-0x000000001B390000-memory.dmp