General
- Target Server.exe
- Size 248KB
- Sample260808-d565aaswdx
- SHA256 72faffb7f0ad058f27ed60bb2275f04ef0100b85783289b8f05de07a8e50beac
- MD5 9bafba8bfde3127b67cde15f83047b30
- SHA1 9ec4cae790256d77f102f5caedf43be93f4fb260
- SHA512 e4f39d5934d959d06a2f9ab844367a7e58fb31ab40d1d1586a4d9be53be4bfd5dd4964d3294b957827223550964cb87d38411d463e63b1e36aca97ac101a48a2
- SSDEEP 3072:gZ4cImeMb8sbOmwotLD8KbgVtn8Mo8G1gVziHzZbIK1YKB/pCAcNqXhwBV3yxSQd:fbMb9/5bTgVziHzZnSKrCbYMy6bT8Bq
- TLSH T16F4428A6F7A000F6D4BE41718D636B06B7B2F0370721D7EF1A9449993F637A04D29BA1
- MD5 SHA1 SHA512 SSDEEP TLSH
Behavioral task
behavioral1
Sample
Server.exe
Resource
win10v2004-20260513-en
Behavioral task
behavioral2
Sample
Server.exe
Resource
win11ltsc2024-20260710-en
Malware Config
Extracted
-
neptunerat
-
viperalza7fgg-40476.portmap.host:40476
-
filename
USB.exe
-
group
MasonGroup
-
key
9wrRyOC9NiWIvgni
-
rat_name
MasonRAT
Targets
-
- Target Server.exe
- Size 248KB
- SHA256 72faffb7f0ad058f27ed60bb2275f04ef0100b85783289b8f05de07a8e50beac
- MD5 9bafba8bfde3127b67cde15f83047b30
- SHA1 9ec4cae790256d77f102f5caedf43be93f4fb260
- SHA512 e4f39d5934d959d06a2f9ab844367a7e58fb31ab40d1d1586a4d9be53be4bfd5dd4964d3294b957827223550964cb87d38411d463e63b1e36aca97ac101a48a2
- SSDEEP 3072:gZ4cImeMb8sbOmwotLD8KbgVtn8Mo8G1gVziHzZbIK1YKB/pCAcNqXhwBV3yxSQd:fbMb9/5bTgVziHzZnSKrCbYMy6bT8Bq
- TLSH T16F4428A6F7A000F6D4BE41718D636B06B7B2F0370721D7EF1A9449993F637A04D29BA1
- MD5 SHA1 SHA512 SSDEEP TLSH
-
Detects NeptuneRAT stealer
-
Suspicious use of NtCreateProcessExOtherParentProcess
-
Suspicious use of NtCreateUserProcessOtherParentProcess
-
Badlisted process makes network request
Network request originating from process or tool commonly abused by malware.
-
Sets service image path in registry
This determines the executable launched when a service starts. It can be used to establish persistence.
-
Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
-
Checks computer location settings
Looks up country code configured in the registry, likely geofence.
-
Executes dropped EXE
-
Indicator Removal: Clear Windows Event Logs
Clear Windows Event Logs to hide the activity of an intrusion.
-
Contacts third-party web service commonly abused for C2
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
-
Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
-
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
1PowerShell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Pre-OS Boot
1Bootkit
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Indicator Removal
1Clear Windows Event Logs
1Modify Registry
1Pre-OS Boot
1Bootkit
1