Resubmissions

12/05/2024, 05:00

240512-fm7dfahg8s

12/05/2024, 04:36

240512-e8aqxsca796

12/05/2024, 04:26

240512-e2tkfsbf569

12/05/2024, 04:22

240512-ezqqsabe5610

12/05/2024, 04:18

240512-ewyxzsbd268

General

  • Target
    Synapse.exe
  • Size 17.5MB
  • Sample240512-e2tkfsbf56
  • SHA256 fb025a0aa34315c3287c087cc598598732f8e96cbcba4cd5ea2d728a270e5467
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Targets

    • Target
      Synapse.exe
    • Size 17.5MB
    • SHA256 fb025a0aa34315c3287c087cc598598732f8e96cbcba4cd5ea2d728a270e5467
    • MD5 SHA1 SHA512 SSDEEP
    • Checks for common network interception software

      Looks in the registry for tools like Wireshark or Fiddler commonly used to analyze network activity.

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Downloads MZ/PE file

    • Modifies Windows Firewall

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Target
      Synapse.pyc
    • Size 1.9MB
    • SHA256 7247caf33200a867f3957f2bd70a10e6f4fa319a904c0e77a5620de69dc1f3ed
    • MD5 SHA1 SHA512 SSDEEP
    Score
    3/10

MITRE ATT&CK Enterprise v15

Tasks