Analysis
- max time kernel
149s - max time network
153s - platform
windows10-ltsc_2021_x64 - resource
win10ltsc2021-20260911-en - resource tags
- submitted
01/10/2026, 22:23
General
- Target sse.exe
- Size 49KB
- Sample261001-2bae8awsfv
- SHA256 f50b63df6f1788bdc61734bfd04b4f8536b4e5bde76fdb3964e58671e486a8b5
Score
10/10
Malware Config
Extracted
Family
-
neptunerat
C2
-
njf7eg-40082.portmap.host:40082
Attributes
-
filename
USB.exe
-
group
MasonGroup
-
key
8HCl3XyKBZ8azOgP
-
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\sse.exe"C:\Users\Admin\AppData\Local\Temp\sse.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
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Downloads
memory/4384-0-0x0000000000E80000-0x0000000000E92000-memory.dmp
memory/4384-1-0x0000000001540000-0x0000000001550000-memory.dmp
memory/4384-2-0x0000000001540000-0x0000000001550000-memory.dmp
memory/4384-3-0x000000001D830000-0x000000001D9D7000-memory.dmp
memory/4384-5-0x000000001D830000-0x000000001D9D7000-memory.dmp