Overview

overview

10

Static

static

3

2023-05-12...uk.exe

windows7-x64

10

2023-05-12...uk.exe

windows10-2004-x64

10

Sharing

Copy URL Twitter E-mail

General

  • Target

    2023-05-12_90dae46e52f2b5108de3b856e2a54d04_ryuk.exe

  • Size

    2.4MB

  • Sample

    230513-dp7e4sfd42

  • MD5

    90dae46e52f2b5108de3b856e2a54d04

  • SHA1

    18d2e1c30d47642e272dc6ad6e2104d5c468e354

  • SHA256

    dbcab77d9c7966de98413d2aedfe6ee6f464189c2eaf35215f59534fc3926a7c

  • SHA512

    4173ebb1d4d5b8f7811262f838e18facc3ca0a8e710cdff10fa821f994a181a82ef050dbd58e592fa507a17902f4303568b8c07e0b880dfde25a33d4eee53c5f

  • SSDEEP

    12288:sp4pNfz3ymJnJ8QCFkxCaQTOlPes5Z76k/L/KB8NIpYJTCihq82WFpXKEVFA2MCS:eEtl9mRda12sX7hKB8NIyXbacAf/

Score
10/10
persistence

Malware Config

Targets

    • Target

      2023-05-12_90dae46e52f2b5108de3b856e2a54d04_ryuk.exe

    • Size

      2.4MB

    • MD5

      90dae46e52f2b5108de3b856e2a54d04

    • SHA1

      18d2e1c30d47642e272dc6ad6e2104d5c468e354

    • SHA256

      dbcab77d9c7966de98413d2aedfe6ee6f464189c2eaf35215f59534fc3926a7c

    • SHA512

      4173ebb1d4d5b8f7811262f838e18facc3ca0a8e710cdff10fa821f994a181a82ef050dbd58e592fa507a17902f4303568b8c07e0b880dfde25a33d4eee53c5f

    • SSDEEP

      12288:sp4pNfz3ymJnJ8QCFkxCaQTOlPes5Z76k/L/KB8NIpYJTCihq82WFpXKEVFA2MCS:eEtl9mRda12sX7hKB8NIyXbacAf/

    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