General

  • Target
    https://www.ccleaner.com/recuva?irclickid=y8GSSsyFCxyZTvvxvJxWj2%3ABUkuQ%3AnTuUR5m0g0&IRID=310668&x-medium=affiliate&utm-medium=affiliate&utm-source=Impact&utm_term=Impact_310668&utm_content=310668&x-origin=8&x-partner=310668&x-subpartner=&ir_partnerid=310668&ir_adid=3841105&ir_campaignid=19556&irgwc=1&afsrc=1&utm_campaign=en-ww_clc_rcv_aff_nas_nau_nah_imp_nad_low:mktc_security
  • Sample260704-ex46dsfs3q

Malware Config

Targets

    • Target
      https://www.ccleaner.com/recuva?irclickid=y8GSSsyFCxyZTvvxvJxWj2%3ABUkuQ%3AnTuUR5m0g0&IRID=310668&x-medium=affiliate&utm-medium=affiliate&utm-source=Impact&utm_term=Impact_310668&utm_content=310668&x-origin=8&x-partner=310668&x-subpartner=&ir_partnerid=310668&ir_adid=3841105&ir_campaignid=19556&irgwc=1&afsrc=1&utm_campaign=en-ww_clc_rcv_aff_nas_nau_nah_imp_nad_low:mktc_security
    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    • 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 installed software on the system

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

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

MITRE ATT&CK Enterprise v16

Tasks