General

  • Target
    https://cloud.bluestacks.com/api/getdownloadnow?platform=win&win_version=11&mac_version=&client_uuid=a6eaafa8-2b5b-4603-bce9-f730607afcb1&app_pkg=bs10-en&platform_cloud=&preferred_lang=en&utm_source=&utm_medium=&gaCookie=&gclid=&clickid=&msclkid=&affiliateId=&offerId=&transaction_id=&aff_sub=&referrer=&first_landing_page=&download_page_referrer=https%3A%2F%2Fwww.bluestacks.com%2Fdownload.html&utm_campaign=download-en&user_id=&exit_utm_campaign=bsx-install-button-download-page-en&incompatible=false&bluestacks_version=bs5&device_memory=16&device_cpu_cores=7&extra_data=%7B%22deviceDetails%22%3A%22windows%22%2C%22renderer%22%3A%22ANGLE%20(NVIDIA%2C%20NVIDIA%20GeForce%20RTX%204060%20Ti%20(0x00002803)%20Direct3D11%20vs_5_0%20ps_5_0%2C%20D3D11)%22%7D
  • Sample260802-sn9lea11b1

Malware Config

Targets

    • Target
      https://cloud.bluestacks.com/api/getdownloadnow?platform=win&win_version=11&mac_version=&client_uuid=a6eaafa8-2b5b-4603-bce9-f730607afcb1&app_pkg=bs10-en&platform_cloud=&preferred_lang=en&utm_source=&utm_medium=&gaCookie=&gclid=&clickid=&msclkid=&affiliateId=&offerId=&transaction_id=&aff_sub=&referrer=&first_landing_page=&download_page_referrer=https%3A%2F%2Fwww.bluestacks.com%2Fdownload.html&utm_campaign=download-en&user_id=&exit_utm_campaign=bsx-install-button-download-page-en&incompatible=false&bluestacks_version=bs5&device_memory=16&device_cpu_cores=7&extra_data=%7B%22deviceDetails%22%3A%22windows%22%2C%22renderer%22%3A%22ANGLE%20(NVIDIA%2C%20NVIDIA%20GeForce%20RTX%204060%20Ti%20(0x00002803)%20Direct3D11%20vs_5_0%20ps_5_0%2C%20D3D11)%22%7D
    • Downloads MZ/PE file

    • Modifies Windows Firewall

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Adds Run key to start application

    • 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.

    • Looks up external IP address via web service

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

    • Discovers running processes

      Running process information can be used to identify security tools or plan follow-on actions.

    • Drops file in System32 directory

    • Executes a VBScript file via the Windows Script Host.

MITRE ATT&CK Enterprise v16

Tasks