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_f03084124fe54e59dc78b3a1678072e4_ryuk

  • Size

    2.4MB

  • Sample

    230515-sp9b2aee6z

  • MD5

    f03084124fe54e59dc78b3a1678072e4

  • SHA1

    0c6a70261cdff49359651745436d5262225ee91b

  • SHA256

    57ba237eebf8422a8f7fac07f6e6710d62ad2ef91fef58810c720073b1fdba44

  • SHA512

    ba3956af855bfea9dd623ab96ab0545cdc60cda4e1078fa25a617b523f1df41132e678f73f80190f778b7e5668b407b76915b30d8a153bfba96e6efd1c928a90

  • SSDEEP

    12288:sp4pNfz3ymJnJ8QCFkxCaQTOlPes5Z76k/L/KB8NIpYJTCihq82WFpXKEVFA2MCS:eEtl9mRda12sX7hKB8NIyXbacAfv

Score
10/10
persistence

Malware Config

Targets

    • Target

      2023-05-14_f03084124fe54e59dc78b3a1678072e4_ryuk

    • Size

      2.4MB

    • MD5

      f03084124fe54e59dc78b3a1678072e4

    • SHA1

      0c6a70261cdff49359651745436d5262225ee91b

    • SHA256

      57ba237eebf8422a8f7fac07f6e6710d62ad2ef91fef58810c720073b1fdba44

    • SHA512

      ba3956af855bfea9dd623ab96ab0545cdc60cda4e1078fa25a617b523f1df41132e678f73f80190f778b7e5668b407b76915b30d8a153bfba96e6efd1c928a90

    • SSDEEP

      12288:sp4pNfz3ymJnJ8QCFkxCaQTOlPes5Z76k/L/KB8NIpYJTCihq82WFpXKEVFA2MCS:eEtl9mRda12sX7hKB8NIyXbacAfv

    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