General

  • Target
    https://install.avira-update.com/download/vpn-win/package/VpnInstaller.exe
  • Sample260625-knm4eaat5y

Malware Config

Targets

    • Target
      https://install.avira-update.com/download/vpn-win/package/VpnInstaller.exe
    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Sets service image path in registry

      This determines the executable launched when a service starts. It can be used to establish persistence.

    • 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.

    • Checks for any installed AV software in registry

    • Checks installed software on the system

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

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v16

Tasks