General
- Target Bypassed.exe
- Size 1.9MB
- Sample260805-bh65navfra
- SHA256 c8446d701d99c5c75a98633f56c3dcce2f0a53c6ebfa542810674f539dc7e896
- MD5 895088641b452ca046da55b8901462d7
- SHA1 e1756aa09e0ead1a6ee58e9b409192043e614822
- SHA512 0cc1108513076c1bac555d01ced27aae9d138d1463416fd056e459b967145f7b19f0e5e0e561ec12483484a874d204773a5170a494e550c29f0a5e29ce02fb7a
- SSDEEP 49152:BMXA6xXZgFUd7gvy3XHHooAj3JJqrdrp9ZjXXkGE8AJ7gnX6cHIQS1eXApMbEJMy:
- TLSH T11995A1141EEE181963B2AE6D5BD478DFC45EABA33B0710F614F2028E4711D93C9E27B9
- MD5 SHA1 SHA512 SSDEEP TLSH
Static task
static1
Behavioral task
behavioral1
Sample
Bypassed.exe
Resource
win10v2004-20260513-it
Behavioral task
behavioral2
Sample
Bypassed.exe
Resource
win10ltsc2021-20260513-it
Behavioral task
behavioral3
Sample
Bypassed.exe
Resource
win11-20260513-it
Behavioral task
behavioral4
Sample
Bypassed.exe
Resource
win11ltsc2024-20260709-it
Malware Config
Extracted
-
neptunerat
-
82.22.62.124:443
-
filename
MasonUSB.exe
-
group
MasonGroup
-
key
eacBkjvaIIlrNRCZ
-
rat_name
MasonRAT
Targets
-
- Target Bypassed.exe
- Size 1.9MB
- SHA256 c8446d701d99c5c75a98633f56c3dcce2f0a53c6ebfa542810674f539dc7e896
- MD5 895088641b452ca046da55b8901462d7
- SHA1 e1756aa09e0ead1a6ee58e9b409192043e614822
- SHA512 0cc1108513076c1bac555d01ced27aae9d138d1463416fd056e459b967145f7b19f0e5e0e561ec12483484a874d204773a5170a494e550c29f0a5e29ce02fb7a
- SSDEEP 49152:BMXA6xXZgFUd7gvy3XHHooAj3JJqrdrp9ZjXXkGE8AJ7gnX6cHIQS1eXApMbEJMy:
- TLSH T11995A1141EEE181963B2AE6D5BD478DFC45EABA33B0710F614F2028E4711D93C9E27B9
- MD5 SHA1 SHA512 SSDEEP TLSH
Score10/10-
Detects NeptuneRAT stealer
-
Command and Scripting Interpreter: PowerShell
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
-
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
-
Drops file in System32 directory
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
3PowerShell
2Windows Command Shell
1Scheduled Task/Job
1Scheduled Task
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
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
1