Analysis
- max time kernel
149s - max time network
152s - platform
windows11-ltsc_2024_x64 - resource
win11ltsc2024-20260709-en - resource tags
- submitted
11/07/2026, 04:09
General
- Target MasonClient.exe
- Size 49KB
- Sample260711-erba5adv71
- SHA256 f42fa5267574ebea8a0d41a02b424b9499a8e9ba79f2eca64e74107279188c2e
Malware Config
Extracted
-
neptunerat
-
efk123-56274.portmap.host:56274
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
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Downloads
memory/4308-0-0x00007FF9D75CF000-0x00007FF9D75D0000-memory.dmp
memory/4308-1-0x0000000000940000-0x0000000000952000-memory.dmp
memory/4308-2-0x00007FF9D7440000-0x00007FF9D7DE4000-memory.dmp
memory/4308-3-0x00007FF9D7440000-0x00007FF9D7DE4000-memory.dmp
memory/4308-4-0x00007FF9D7440000-0x00007FF9D7DE4000-memory.dmp
memory/4308-5-0x00007FF9D7440000-0x00007FF9D7DE4000-memory.dmp
memory/4308-6-0x00007FF9D7440000-0x00007FF9D7DE4000-memory.dmp
memory/4308-7-0x00007FF9D7440000-0x00007FF9D7DE4000-memory.dmp
memory/4308-8-0x00007FF9D7440000-0x00007FF9D7DE4000-memory.dmp
memory/4308-9-0x00007FF9D7440000-0x00007FF9D7DE4000-memory.dmp
memory/4308-10-0x00007FF9D7440000-0x00007FF9D7DE4000-memory.dmp
memory/4308-11-0x00007FF9D7440000-0x00007FF9D7DE4000-memory.dmp
memory/4308-12-0x00007FF9D7440000-0x00007FF9D7DE4000-memory.dmp
memory/4308-13-0x00007FF9D7440000-0x00007FF9D7DE4000-memory.dmp
memory/4308-14-0x00007FF9D7440000-0x00007FF9D7DE4000-memory.dmp
memory/4308-15-0x00007FF9D7440000-0x00007FF9D7DE4000-memory.dmp
memory/4308-16-0x00007FF9D7440000-0x00007FF9D7DE4000-memory.dmp
memory/4308-17-0x00007FF9D7440000-0x00007FF9D7DE4000-memory.dmp