General

  • Target

    20230516c1d06f86f2cdb187302d60572c08961fryuk.exe

  • Size

    3.1MB

  • Sample

    230518-q3mn3sbe62

  • MD5

    c1d06f86f2cdb187302d60572c08961f

  • SHA1

    3d22f378c4e07c16e7737e1a089e86e94178837d

  • SHA256

    bc781919bf4cc9af2f2332c996358743a0729a297c8d5c2839889d4b9f9c4a0f

  • SHA512

    c072026037e4bc19507e3bb4f53b6ceab8ce5babb0f2eeef84a867e36ebd72232321cff3d7a6c2d951d078c9e4d9715359795f18410e14fe2eb0139dc5417953

  • SSDEEP

    12288:sp4pNfz3ymJnJ8QCFkxCaQTOlPes5Z76k/L/KB8NIpYJTCihq82WFpXKEVFA2MCL:eEtl9mRda12sX7hKB8NIyXbacAf4

Score
10/10

Malware Config

Targets

    • Target

      20230516c1d06f86f2cdb187302d60572c08961fryuk.exe

    • Size

      3.1MB

    • MD5

      c1d06f86f2cdb187302d60572c08961f

    • SHA1

      3d22f378c4e07c16e7737e1a089e86e94178837d

    • SHA256

      bc781919bf4cc9af2f2332c996358743a0729a297c8d5c2839889d4b9f9c4a0f

    • SHA512

      c072026037e4bc19507e3bb4f53b6ceab8ce5babb0f2eeef84a867e36ebd72232321cff3d7a6c2d951d078c9e4d9715359795f18410e14fe2eb0139dc5417953

    • SSDEEP

      12288:sp4pNfz3ymJnJ8QCFkxCaQTOlPes5Z76k/L/KB8NIpYJTCihq82WFpXKEVFA2MCL:eEtl9mRda12sX7hKB8NIyXbacAf4

    Score
    10/10
    • Modifies WinLogon for persistence

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Enumerates connected drives

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

    • Drops autorun.inf file

      Malware can abuse Windows Autorun to spread further via attached volumes.

    • Drops file in System32 directory

MITRE ATT&CK Enterprise v6

Tasks