General
- Target 66.exe
- Size 48KB
- Sample261107-2apthsgd37
- SHA256 09950d67c93e7d7c557b80e398971e29abd6bdb02dd93acedb5d9181aa060313
- MD5 19e814fab127b99b03aa7a2a73948500
- SHA1 c664890796a9975cd5de36e236f1a4b15357b7ae
- SHA512 b0103d92bfbe64ea1456b93849dfd4905a483b4eaa2ac2842f03958562868f0bee3c0c7c6431000fbdf7512bcab81a0f36227a80ee60779ac2b31e7740640bb2
- SSDEEP 768:xsr3eU2BWe2r0axVIu0XD2iZyEOukbaEjofpkszx0rgynBGbop8SwhnTxcAM+hLI:xsr3eU2BW5wQVIu0XD2iZ7kbaEj4asze
- TLSH T1B623F88CA7D84131E4BE5AB21D77124893B4BAA38462D79F7CC405DE2B26B85C741EF3
- MD5 SHA1 SHA512 SSDEEP TLSH
Behavioral task
behavioral1
Sample
66.exe
Resource
win10v2004-20260911-en
5 signatures
150 seconds
Behavioral task
behavioral2
Sample
66.exe
Resource
win11ltsc2024-20260911-en
19 signatures
150 seconds
Malware Config
Extracted
Family
-
neptunerat
C2
-
23.239.12.84:3333
Attributes
-
filename
USB.exe
-
group
MasonGroup
-
key
Alou7Nc2Oj6Ctf8m
-
rat_name
MasonRAT
Targets
-
- Target 66.exe
- Size 48KB
- SHA256 09950d67c93e7d7c557b80e398971e29abd6bdb02dd93acedb5d9181aa060313
- MD5 19e814fab127b99b03aa7a2a73948500
- SHA1 c664890796a9975cd5de36e236f1a4b15357b7ae
- SHA512 b0103d92bfbe64ea1456b93849dfd4905a483b4eaa2ac2842f03958562868f0bee3c0c7c6431000fbdf7512bcab81a0f36227a80ee60779ac2b31e7740640bb2
- SSDEEP 768:xsr3eU2BWe2r0axVIu0XD2iZyEOukbaEjofpkszx0rgynBGbop8SwhnTxcAM+hLI:xsr3eU2BW5wQVIu0XD2iZ7kbaEj4asze
- TLSH T1B623F88CA7D84131E4BE5AB21D77124893B4BAA38462D79F7CC405DE2B26B85C741EF3
- MD5 SHA1 SHA512 SSDEEP TLSH
Detects NeptuneRAT stealer
Executes dropped EXE
Writes to the Master Boot Record (MBR)
Bootkits write to the MBR to gain persistence at a level below the operating system.
Drops file in System32 directory
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
1Windows Command Shell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Pre-OS Boot
1Bootkit
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Process Injection
1Process Hollowing
1Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Modify Registry
1Pre-OS Boot
1Bootkit
1Process Injection
1Process Hollowing
1