General

  • Target

    ef0e8df5c700e64d5d2e8dde4c9b5c117abfc919c676ff383019c585e8e367b0

  • Size

    814KB

  • Sample

    220201-c7bwgsgad5

  • MD5

    3e3563c9eb5692e5ef8957b5cccc6388

  • SHA1

    741e0d1c224e813fbc77b379ae8cd75f99f05821

  • SHA256

    ef0e8df5c700e64d5d2e8dde4c9b5c117abfc919c676ff383019c585e8e367b0

  • SHA512

    4fef9a80fcec9464e3023664045a9f7592e2393026e1197545bb6f0a87c2837c7a1c0c2e56eae4b7258136901eb096660463aab7499460c9a1b91037fe273849

Score
10/10

Malware Config

Extracted

Family

buer

C2

http://mainserver.host/

http://reservestation.host/

Targets

    • Target

      ef0e8df5c700e64d5d2e8dde4c9b5c117abfc919c676ff383019c585e8e367b0

    • Size

      814KB

    • MD5

      3e3563c9eb5692e5ef8957b5cccc6388

    • SHA1

      741e0d1c224e813fbc77b379ae8cd75f99f05821

    • SHA256

      ef0e8df5c700e64d5d2e8dde4c9b5c117abfc919c676ff383019c585e8e367b0

    • SHA512

      4fef9a80fcec9464e3023664045a9f7592e2393026e1197545bb6f0a87c2837c7a1c0c2e56eae4b7258136901eb096660463aab7499460c9a1b91037fe273849

    Score
    10/10
    • Buer

      Buer is a new modular loader first seen in August 2019.

    • Modifies WinLogon for persistence

    • Buer Loader

      Detects Buer loader in memory or disk.

    • Executes dropped EXE

    • Deletes itself

    • Loads dropped DLL

MITRE ATT&CK Enterprise v6

Tasks