General

  • Target

    file_v2_0.rar

  • Size

    12.7MB

  • Sample

    240201-r3z5vahfhr

  • MD5

    ef865d4214cbe1f0017c03b9c8b8a080

  • SHA1

    92e91daa32b2bf34bb9a5b8d6de610f241568cf8

  • SHA256

    c841a0c166bdd4518233a01e9a389af40fa80c972b27e471b2b70bc5c1c817cc

  • SHA512

    d1a8637b115be27819ddcc1e6119ccd77d21e3904a3bad84cad82b2d1e3cf2e51deee21b9b931c9c027e2281a5b945239256a85f6407781a4b1cb4f81b99bdc7

  • SSDEEP

    393216:889KAmRYZ1GT8s0fQN0bBrBqF759lKb7s3:xcAmou8sOq0bVIF7DY3A

Malware Config

Targets

    • Target

      file_v2_0.rar

    • Size

      12.7MB

    • MD5

      ef865d4214cbe1f0017c03b9c8b8a080

    • SHA1

      92e91daa32b2bf34bb9a5b8d6de610f241568cf8

    • SHA256

      c841a0c166bdd4518233a01e9a389af40fa80c972b27e471b2b70bc5c1c817cc

    • SHA512

      d1a8637b115be27819ddcc1e6119ccd77d21e3904a3bad84cad82b2d1e3cf2e51deee21b9b931c9c027e2281a5b945239256a85f6407781a4b1cb4f81b99bdc7

    • SSDEEP

      393216:889KAmRYZ1GT8s0fQN0bBrBqF759lKb7s3:xcAmou8sOq0bVIF7DY3A

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Downloads MZ/PE file

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Reads user/profile data of web browsers

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

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Checks whether UAC is enabled

    • Looks up external IP address via web service

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

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks