Overview

overview

10

Static

static

3

2023-05-14...uk.exe

windows7-x64

10

2023-05-14...uk.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2023-05-14_d815dbbd883fb0ca60366fec3446e3f5_ryuk

  • Size

    2.4MB

  • Sample

    230515-sp6adaee6v

  • MD5

    d815dbbd883fb0ca60366fec3446e3f5

  • SHA1

    392fccb013d50ad1fbf7bdcd783be9bb85a48a87

  • SHA256

    f95ab72f3dbc0f053bbf300a20d8e6c26bbab1b6812d04a6fb4770ea3bde30b8

  • SHA512

    42ef36a40ad3993b5abc7b322c5934613d888fb9741554654564d24bd2cd27f1a1146ba1c5b62242959742cbb4fdc58be26efda931b79f74a7f9547dc1944b38

  • SSDEEP

    12288:sp4pNfz3ymJnJ8QCFkxCaQTOlPes5Z76k/L/KB8NIpYJTCihq82WFpXKEVFA2MC5:eEtl9mRda12sX7hKB8NIyXbacAfC

Score
10/10
persistence

Malware Config

Targets

    • Target

      2023-05-14_d815dbbd883fb0ca60366fec3446e3f5_ryuk

    • Size

      2.4MB

    • MD5

      d815dbbd883fb0ca60366fec3446e3f5

    • SHA1

      392fccb013d50ad1fbf7bdcd783be9bb85a48a87

    • SHA256

      f95ab72f3dbc0f053bbf300a20d8e6c26bbab1b6812d04a6fb4770ea3bde30b8

    • SHA512

      42ef36a40ad3993b5abc7b322c5934613d888fb9741554654564d24bd2cd27f1a1146ba1c5b62242959742cbb4fdc58be26efda931b79f74a7f9547dc1944b38

    • SSDEEP

      12288:sp4pNfz3ymJnJ8QCFkxCaQTOlPes5Z76k/L/KB8NIpYJTCihq82WFpXKEVFA2MC5: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