General

  • Target

    8576F95A0E018025E8B46367AE311E83.exe

  • Size

    4.6MB

  • Sample

    241215-dsf3bstrbk

  • MD5

    8576f95a0e018025e8b46367ae311e83

  • SHA1

    0d1c5e913dcc60910e454416e3c149c9d05f02f5

  • SHA256

    b8c9a273058d6214aeccc822fb5f304edc734bd57a4ac43450feeacef70fafb8

  • SHA512

    ef30324c2f5afdfe3639e7322e8e1845e661d55cd4ffff6f7bf65c85e8ac23d5d7c5b92f39d1807c9524a5fb29b21b45249a617f63f0e35ecd3803edd6dc7f30

  • SSDEEP

    98304:d++ALvAvoV3JDBQSBK5f7a6uBt9iofavIah:TmvvV5DpQ7a6ugoCvIw

Malware Config

Targets

    • Target

      8576F95A0E018025E8B46367AE311E83.exe

    • Size

      4.6MB

    • MD5

      8576f95a0e018025e8b46367ae311e83

    • SHA1

      0d1c5e913dcc60910e454416e3c149c9d05f02f5

    • SHA256

      b8c9a273058d6214aeccc822fb5f304edc734bd57a4ac43450feeacef70fafb8

    • SHA512

      ef30324c2f5afdfe3639e7322e8e1845e661d55cd4ffff6f7bf65c85e8ac23d5d7c5b92f39d1807c9524a5fb29b21b45249a617f63f0e35ecd3803edd6dc7f30

    • SSDEEP

      98304:d++ALvAvoV3JDBQSBK5f7a6uBt9iofavIah:TmvvV5DpQ7a6ugoCvIw

    • DcRat

      DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

    • Dcrat family

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Unexpected DNS network traffic destination

      Network traffic to other servers than the configured DNS servers was detected on the DNS port.

    • Blocklisted process makes network request

    • Enumerates connected drives

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

    • Legitimate hosting services abused for malware hosting/C2

MITRE ATT&CK Enterprise v15

Tasks