General

  • Target

    PolarisBiosEditor 1.7.2.zip

  • Size

    2.1MB

  • Sample

    210123-bfyzkjhfta

  • MD5

    6da1bac338854a4412c0c0012fc6718d

  • SHA1

    61cda046b241be87a27f0a5e1b6c7813a10904a2

  • SHA256

    3fcd62fac62aa9429edf5bbf7d4fb33bccfd39b1e7f009fb9609448371a01a49

  • SHA512

    2ce8ed5f585e2056bff22f0488e7e89bf7c9ec35803d2659b5b1a1cde66f669eb7f1384fc26ba363104b5e6139ed81483c38b385900f3bc09ecd71936158f881

Score
10/10

Malware Config

Extracted

Family

remcos

C2

37.252.11.23:5858

Targets

    • Target

      PolarisBiosEditor 1.7.2/PolarisBiosEditor.exe

    • Size

      2.5MB

    • MD5

      9e0fda5c54adcedc3182e76165a19796

    • SHA1

      3c343ca9fbdf93f8bac79ca854e150a3dffb2a88

    • SHA256

      1ef35cbc0d1d5cba4a2504862c79c4e5147007d1c1e0f2a9c6ebf6c8f18461eb

    • SHA512

      a8b1d1637085b700ae92d6861448522c45d7f78763241fe6b66137dd427e29ae70c9351ff72ad0e3d88edb37516f92f07ea4aeed44fa36fc6c9461999e48e34c

    Score
    10/10
    • Remcos

      Remcos is a closed-source remote control and surveillance software.

    • Blocklisted process makes network request

    • Executes dropped EXE

    • Loads dropped DLL

    • Enumerates physical storage devices

      Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

MITRE ATT&CK Enterprise v6

Tasks