General

  • Target
    Riva-s C2 internel V2.rar
  • Size 1.1MB
  • Sample260415-2glensbs9n
  • SHA256 ca180feb4743e60a5ae52e4543be645b986dfbb0cc9f05e5f8e1a38e2483922d
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Targets

    • Target
      Riva-s C2 internel V2.rar
    • Size 1.1MB
    • SHA256 ca180feb4743e60a5ae52e4543be645b986dfbb0cc9f05e5f8e1a38e2483922d
    • MD5 SHA1 SHA512 SSDEEP TLSH
    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • Stops running service(s)

    • Checks installed software on the system

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

    • Contacts third-party web service commonly abused for C2

      Legitimate web (hosting) services can be abused by malware authors to host malware or C2s.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v16

Tasks