General
- Target Systems.exe
- Size 88KB
- Sample260811-kcanyadd54
- SHA256 149726b7f81a67a5f98a7cf6f58b6c52f786a29e5c06321b504b387264ccd51f
- MD5 1640909c7b70ba133ee2e7b6738c9fa3
- SHA1 b2f8be6c4237c3a78b9836111b551a286099c106
- SHA512 73b6b0787060efa4aad48f26de73f33b5c7b593c02149a7da352904f9ab8d74b8a99534e7e5137dd3a8359ed35ade2cda339829ac5b51c9329e5dafc57284786
- SSDEEP 1536:ToWMHaQzy34J3uc/bY680UZP7ChqlVxtO16I7M0WZfP87RAz0sAVK9:TojHVzFNuLiSTChql7w16obWqddfVK9
- TLSH T1D093F1B683FE50B6EBF545BE9A64C2285FEE71000F7521C004FA687F8D1866B1E1A19C
- MD5 SHA1 SHA512 SSDEEP TLSH
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
Systems.exe
Resource
win10v2004-20260513-en
14 signatures
900 seconds
Behavioral task
behavioral2
Sample
Systems.exe
Resource
win11ltsc2024-20260710-en
13 signatures
900 seconds
Malware Config
Extracted
Family
-
neptunerat
C2
-
92.99.93.184:6767
Attributes
-
filename
USB.exe
-
group
MasonGroup
-
key
HHtOAIVB8ELpXuCq
-
rat_name
MasonRAT
Targets
-
- Target Systems.exe
- Size 88KB
- SHA256 149726b7f81a67a5f98a7cf6f58b6c52f786a29e5c06321b504b387264ccd51f
- MD5 1640909c7b70ba133ee2e7b6738c9fa3
- SHA1 b2f8be6c4237c3a78b9836111b551a286099c106
- SHA512 73b6b0787060efa4aad48f26de73f33b5c7b593c02149a7da352904f9ab8d74b8a99534e7e5137dd3a8359ed35ade2cda339829ac5b51c9329e5dafc57284786
- SSDEEP 1536:ToWMHaQzy34J3uc/bY680UZP7ChqlVxtO16I7M0WZfP87RAz0sAVK9:TojHVzFNuLiSTChql7w16obWqddfVK9
- TLSH T1D093F1B683FE50B6EBF545BE9A64C2285FEE71000F7521C004FA687F8D1866B1E1A19C
- MD5 SHA1 SHA512 SSDEEP TLSH
-
Detects DonutLoader
-
Detects NeptuneRAT stealer
-
Family: DonutLoader
DonutLoader is a position-independent code that enables in-memory execution of VBScript, JScript, EXE, DLL files and dotNET assemblies.
-
Checks computer location settings
Looks up country code configured in the registry, likely geofence.
-
Executes dropped EXE
-
Adds Run key to start application
MITRE ATT&CK Enterprise v16
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Scheduled Task
1