General
- Target MasonClient.exe
- Size 50KB
- Sample260927-e62rma1sdz
- SHA256 79d94605086bb82f31ce24ec0bf6bae92865031bc2539269b2b39c4628c7b30f
- MD5 1bf5e049a47c09d77acb53011ea9dc56
- SHA1 d5079a77a290e130f60a69fe21de3e779ebffb2a
- SHA512 74308da5b5b9aa57b97a040d59822257f942942c950cd4fd4eeb2933bd4351b2f987daead4036d08d6025b2329ebf84637a74767fd0e978d6de3b06214d68ce8
- SSDEEP 768:/pGqA0gpdFxXBVnYmyeHtErb9NgXSgDN3hBObyJsl:/pFCFYmyeHwb9NbMDOVl
- TLSH T13933E68DBBE44129D5BE6AB12D73A20983B079934517C60F7CD402CB3B6B7884691EF3
- MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
Behavioral task
behavioral1
Sample
MasonClient.exe
Resource
win10v2004-20260911-en
9 signatures
150 seconds
Behavioral task
behavioral2
Sample
MasonClient.exe
Resource
win11ltsc2024-20260911-en
8 signatures
150 seconds
Malware Config
Extracted
Family
-
neptunerat
C2
-
193.161.193.99:876
Attributes
-
filename
USB.exe
-
group
MasonGroup
-
key
3dkbTKB8OrzIdMEj
-
rat_name
MasonRAT
Targets
-
- Target MasonClient.exe
- Size 50KB
- SHA256 79d94605086bb82f31ce24ec0bf6bae92865031bc2539269b2b39c4628c7b30f
- MD5 1bf5e049a47c09d77acb53011ea9dc56
- SHA1 d5079a77a290e130f60a69fe21de3e779ebffb2a
- SHA512 74308da5b5b9aa57b97a040d59822257f942942c950cd4fd4eeb2933bd4351b2f987daead4036d08d6025b2329ebf84637a74767fd0e978d6de3b06214d68ce8
- SSDEEP 768:/pGqA0gpdFxXBVnYmyeHtErb9NgXSgDN3hBObyJsl:/pFCFYmyeHwb9NbMDOVl
- TLSH T13933E68DBBE44129D5BE6AB12D73A20983B079934517C60F7CD402CB3B6B7884691EF3
- MD5 SHA1 SHA512 SSDEEP TLSH
Score10/10-
Detects NeptuneRAT stealer
-
Checks computer location settings
Looks up country code configured in the registry, likely geofence.
-
Executes dropped EXE