Overview

overview

10

Static

static

3

2023-05-22...uk.exe

windows7-x64

10

2023-05-22...uk.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2023-05-22_dc931ee5128cf9f7e26394fe51bad3b5_ryuk

  • Size

    2.9MB

  • Sample

    230523-dqdt7aee4s

  • MD5

    dc931ee5128cf9f7e26394fe51bad3b5

  • SHA1

    3296dff96d57d44ed3c63664f585ce19d3719e54

  • SHA256

    6bf1f0b9fe08c7c207447f44c20b63487b06029aa65810469459410f2eda7425

  • SHA512

    eb10963da6ffd18494108cf51ce7371117613abca66c9bf07a34b1b99cd429ebc35fe384f19b203433bfb0a7d0a213e7acc32a3a2d518f092e02b528512e4820

  • SSDEEP

    12288:sp4pNfz3ymJnJ8QCFkxCaQTOlPes5Z76k/L/KB8NIpYJTCihq82WFpXKEVFA2MCR:eEtl9mRda12sX7hKB8NIyXbacAfC

Score
10/10
persistence

Malware Config

Targets

    • Target

      2023-05-22_dc931ee5128cf9f7e26394fe51bad3b5_ryuk

    • Size

      2.9MB

    • MD5

      dc931ee5128cf9f7e26394fe51bad3b5

    • SHA1

      3296dff96d57d44ed3c63664f585ce19d3719e54

    • SHA256

      6bf1f0b9fe08c7c207447f44c20b63487b06029aa65810469459410f2eda7425

    • SHA512

      eb10963da6ffd18494108cf51ce7371117613abca66c9bf07a34b1b99cd429ebc35fe384f19b203433bfb0a7d0a213e7acc32a3a2d518f092e02b528512e4820

    • SSDEEP

      12288:sp4pNfz3ymJnJ8QCFkxCaQTOlPes5Z76k/L/KB8NIpYJTCihq82WFpXKEVFA2MCR: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