Analysis
- max time kernel
148s - max time network
147s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
22/09/2026, 17:06
General
- Target MasonClient.exe
- Size 49KB
- Sample260922-vmhseabb34
- SHA256 7a7281ec920f9cec2db04b711d268cb3a1f56c559ccda8affabdec2aa6c1af86
Malware Config
Extracted
-
neptunerat
-
fduhgnduhgd-42552.portmap.host:42552
-
filename
USB.exe
-
group
MasonGroup
-
key
g4iwvBAV8XRPb7ng
-
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/4952-0-0x00007FFD973EF000-0x00007FFD973F0000-memory.dmp
memory/4952-1-0x0000000000970000-0x0000000000982000-memory.dmp
memory/4952-2-0x00007FFD97260000-0x00007FFD97C04000-memory.dmp
memory/4952-3-0x00007FFD97260000-0x00007FFD97C04000-memory.dmp
memory/4952-4-0x00007FFD97260000-0x00007FFD97C04000-memory.dmp
memory/4952-5-0x00007FFD97260000-0x00007FFD97C04000-memory.dmp
memory/4952-6-0x00007FFD97260000-0x00007FFD97C04000-memory.dmp
memory/4952-7-0x00007FFD97260000-0x00007FFD97C04000-memory.dmp
memory/4952-9-0x00007FFD97260000-0x00007FFD97C04000-memory.dmp
memory/4952-10-0x00007FFD97260000-0x00007FFD97C04000-memory.dmp
memory/4952-8-0x00007FFD97260000-0x00007FFD97C04000-memory.dmp
memory/4952-11-0x00007FFD97260000-0x00007FFD97C04000-memory.dmp
memory/4952-12-0x00007FFD97260000-0x00007FFD97C04000-memory.dmp
memory/4952-13-0x00007FFD97260000-0x00007FFD97C04000-memory.dmp
memory/4952-14-0x00007FFD97260000-0x00007FFD97C04000-memory.dmp
memory/4952-15-0x00007FFD97260000-0x00007FFD97C04000-memory.dmp
memory/4952-16-0x00007FFD97260000-0x00007FFD97C04000-memory.dmp
memory/4952-17-0x00007FFD97260000-0x00007FFD97C04000-memory.dmp