Overview

overview

10

Static

static

3

2023-05-12...uk.exe

windows7-x64

10

2023-05-12...uk.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2023-05-12_15a3245cc090e0ec317482baef7bb6b8_ryuk.exe

  • Size

    2.4MB

  • Sample

    230513-dplteafd24

  • MD5

    15a3245cc090e0ec317482baef7bb6b8

  • SHA1

    bfa58078b197e6453e3d4bc26d908685156df3f0

  • SHA256

    8e1ce6baf5593edb5a001ea5eac795daeb6dcc055099e9a20881398c1e01660e

  • SHA512

    89c1ca20d8e43b0594674078aef2d2928dec4f7ae5cbf95b7d024cf02b1b62a19cdba4b2b624fde29f8060841eeaf5fc21efad0f64a57da10caf45d401291294

  • SSDEEP

    12288:sp4pNfz3ymJnJ8QCFkxCaQTOlPes5Z76k/L/KB8NIpYJTCihq82WFpXKEVFA2MCT:eEtl9mRda12sX7hKB8NIyXbacAfu

Score
10/10
persistence

Malware Config

Targets

    • Target

      2023-05-12_15a3245cc090e0ec317482baef7bb6b8_ryuk.exe

    • Size

      2.4MB

    • MD5

      15a3245cc090e0ec317482baef7bb6b8

    • SHA1

      bfa58078b197e6453e3d4bc26d908685156df3f0

    • SHA256

      8e1ce6baf5593edb5a001ea5eac795daeb6dcc055099e9a20881398c1e01660e

    • SHA512

      89c1ca20d8e43b0594674078aef2d2928dec4f7ae5cbf95b7d024cf02b1b62a19cdba4b2b624fde29f8060841eeaf5fc21efad0f64a57da10caf45d401291294

    • SSDEEP

      12288:sp4pNfz3ymJnJ8QCFkxCaQTOlPes5Z76k/L/KB8NIpYJTCihq82WFpXKEVFA2MCT:eEtl9mRda12sX7hKB8NIyXbacAfu

    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