Analysis
- max time kernel
150s - max time network
154s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260911-en - resource tags
- submitted
02/10/2026, 03:37
General
- Target 8c26857f0fc04d8b392184cf1202ab79a13e1030d383215a0e863d798317d9ef.exe
- Size 49KB
- Sample261002-d6pxdsvvct
- SHA256 8c26857f0fc04d8b392184cf1202ab79a13e1030d383215a0e863d798317d9ef
Malware Config
Extracted
-
neptunerat
-
1.tcp.cpolar.top:11879
-
filename
USB.exe
-
group
MasonGroup
-
key
zDdxeYBmg8Y4Li59
-
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.
- Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs
The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.
- Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\8c26857f0fc04d8b392184cf1202ab79a13e1030d383215a0e863d798317d9ef.exe"C:\Users\Admin\AppData\Local\Temp\8c26857f0fc04d8b392184cf1202ab79a13e1030d383215a0e863d798317d9ef.exe"1⤵
- Reads the TCP/IP host and domain name from the registry
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v16
Replay Monitor
Loading Replay Monitor...
Downloads
memory/4524-1-0x0000000000300000-0x0000000000312000-memory.dmp
memory/4524-0-0x00007FF92148F000-0x00007FF921490000-memory.dmp
memory/4524-2-0x00007FF921300000-0x00007FF921CA4000-memory.dmp
memory/4524-3-0x00007FF921300000-0x00007FF921CA4000-memory.dmp
memory/4524-4-0x00007FF921300000-0x00007FF921CA4000-memory.dmp
memory/4524-5-0x00007FF921300000-0x00007FF921CA4000-memory.dmp
memory/4524-6-0x00007FF921300000-0x00007FF921CA4000-memory.dmp
memory/4524-7-0x00007FF921300000-0x00007FF921CA4000-memory.dmp
memory/4524-8-0x00007FF921300000-0x00007FF921CA4000-memory.dmp
memory/4524-9-0x00007FF921300000-0x00007FF921CA4000-memory.dmp
memory/4524-10-0x00007FF921300000-0x00007FF921CA4000-memory.dmp
memory/4524-11-0x00007FF921300000-0x00007FF921CA4000-memory.dmp
memory/4524-12-0x00007FF921300000-0x00007FF921CA4000-memory.dmp
memory/4524-13-0x00007FF921300000-0x00007FF921CA4000-memory.dmp
memory/4524-14-0x00007FF921300000-0x00007FF921CA4000-memory.dmp
memory/4524-15-0x00007FF921300000-0x00007FF921CA4000-memory.dmp
memory/4524-16-0x00007FF921300000-0x00007FF921CA4000-memory.dmp
memory/4524-17-0x00007FF921300000-0x00007FF921CA4000-memory.dmp