Overview

overview

10

Static

static

1

2023-04-11...uk.exe

windows7-x64

10

2023-04-11...uk.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2023-04-11_d70dccb4721cd208244895193db0d73d_ryuk

  • Size

    2.8MB

  • Sample

    230413-dwct3sae3x

  • MD5

    d70dccb4721cd208244895193db0d73d

  • SHA1

    bde919508c9d65f25b5b88c5dc7f0be4dcd35cdd

  • SHA256

    7df612bcb1cff7e3e9b923a0b6ff6b554b70babd4ab7c91e3266651cc90ab822

  • SHA512

    95ca91e6018f3a2bd20e330f0a5744d7f5a5e2f941395d200e53214c77d31306b6931af830c5abd27b98f7e3520b895b9a8ecb07b0884fa31409f89d1573b241

  • SSDEEP

    12288:sp4pNfz3ymJnJ8QCFkxCaQTOlPes5Z76k/L/KB8NIpYJTCihq82WFpXKEVFA2MCF:eEtl9mRda12sX7hKB8NIyXbacAfC

Score
10/10
persistence

Malware Config

Targets

    • Target

      2023-04-11_d70dccb4721cd208244895193db0d73d_ryuk

    • Size

      2.8MB

    • MD5

      d70dccb4721cd208244895193db0d73d

    • SHA1

      bde919508c9d65f25b5b88c5dc7f0be4dcd35cdd

    • SHA256

      7df612bcb1cff7e3e9b923a0b6ff6b554b70babd4ab7c91e3266651cc90ab822

    • SHA512

      95ca91e6018f3a2bd20e330f0a5744d7f5a5e2f941395d200e53214c77d31306b6931af830c5abd27b98f7e3520b895b9a8ecb07b0884fa31409f89d1573b241

    • SSDEEP

      12288:sp4pNfz3ymJnJ8QCFkxCaQTOlPes5Z76k/L/KB8NIpYJTCihq82WFpXKEVFA2MCF:eEtl9mRda12sX7hKB8NIyXbacAfC

    Score
    10/10
    persistence

    • Modifies WinLogon for persistence

      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

    behavioral1behavioral2

MITRE ATT&CK Enterprise v6

Tasks