General
- Target OctopusEAX.exe
- Size 8.5MB
- Sample261109-vzbvmac14y
- SHA256 994a1970cac874ed1723b067f890e6c4e39960a4bc60e51e4e9458790586e743
- MD5 9a0231211ac51f71838bfb39a895b16e
- SHA1 6d002a113ae45a75fb7f4b366702c343114ce77b
- SHA512 8c90e11d721147075a1bf9b442f4ab5caa409b5fe271903958dca726448d5d2ec91b42c58f5fbe832a2729684c59cbe82d8012f41b35e687ac421d5b22a1cc86
- SSDEEP 196608:OpEi4b5a3Sd7OjmFQR4MVGFtwLPcnL225Rin:OydSKtM5LPchon
- TLSH T1AE961216A2A802FDE5BFA134CE776B07DB7274070374AA9F0B9048562F232515E7FB16
- MD5 SHA1 SHA512 SSDEEP TLSH
Behavioral task
behavioral1
Sample
OctopusEAX.exe
Resource
win11-20260911-en
Behavioral task
behavioral2
Sample
OctopusEAX.exe
Resource
win11ltsc2024-20260911-en
Malware Config
Extracted
-
neptunerat
-
nsnosi-39204.portmap.host:39204
-
filename
USB.exe
-
group
MasonGroup
-
key
gU6Vn0Ysp6hyNraR
-
rat_name
MasonRAT
Targets
-
- Target OctopusEAX.exe
- Size 8.5MB
- SHA256 994a1970cac874ed1723b067f890e6c4e39960a4bc60e51e4e9458790586e743
- MD5 9a0231211ac51f71838bfb39a895b16e
- SHA1 6d002a113ae45a75fb7f4b366702c343114ce77b
- SHA512 8c90e11d721147075a1bf9b442f4ab5caa409b5fe271903958dca726448d5d2ec91b42c58f5fbe832a2729684c59cbe82d8012f41b35e687ac421d5b22a1cc86
- SSDEEP 196608:OpEi4b5a3Sd7OjmFQR4MVGFtwLPcnL225Rin:OydSKtM5LPchon
- TLSH T1AE961216A2A802FDE5BFA134CE776B07DB7274070374AA9F0B9048562F232515E7FB16
- MD5 SHA1 SHA512 SSDEEP TLSH
Deletes Windows Defender Definitions
Uses mpcmdrun utility to delete all AV definitions.
Detects NeptuneRAT stealer
Command and Scripting Interpreter: PowerShell
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
Disables one or more Microsoft Defender components
Uses the Powershell Set-MpPreference cmdlet to disable one or more Microsoft Defender components.
Clipboard Data
Adversaries may collect data stored in the clipboard from users copying information within or between applications.
Executes dropped EXE
Loads dropped DLL
Unsecured Credentials: Credentials In Files
Steal credentials from unsecured files.
Accesses cryptocurrency files/wallets, possible credential harvesting
Adds Run key to start application
Contacts third-party web service commonly abused for C2
Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.
Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
Obfuscated Files or Information: Command Obfuscation
Adversaries may obfuscate content during command execution to impede detection.
Discovers running processes
Running process information can be used to identify security tools or plan follow-on actions.
Drops file in System32 directory
MITRE ATT&CK Enterprise v16
Execution
Command and Scripting Interpreter
4PowerShell
2Windows Command Shell
1Scheduled Task/Job
1Scheduled Task
1Windows Management Instrumentation
1Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Event Triggered Execution
1Netsh Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Event Triggered Execution
1Netsh Helper DLL
1Scheduled Task/Job
1Scheduled Task
1Defense Evasion
Impair Defenses
2Disable or Modify Tools
1Modify Registry
1Obfuscated Files or Information
1Command Obfuscation
1Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
3Credentials In Files
3