Overview

overview

10

Static

static

3

2023-04-24...uk.exe

windows7-x64

10

2023-04-24...uk.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2023-04-24_ad8e2594b7bcba48e7cb4eaaea3c8245_ryuk

  • Size

    3.2MB

  • Sample

    230426-ed8z8sgg3y

  • MD5

    ad8e2594b7bcba48e7cb4eaaea3c8245

  • SHA1

    96920a497b9b53f56db208f2af5535266f8a0c4d

  • SHA256

    a16bdded38087cd572f99c83b202f52320da42e15ca5f1d14b62eb3445e1ab67

  • SHA512

    93aafb1d788a1825a0018c5c736198add5727b878745f406fd0dc1da1be1665d924719a0ee7faf3dc654a31af6dcba0cb715d0da90c137333eeec894adc1f275

  • SSDEEP

    12288:sp4pNfz3ymJnJ8QCFkxCaQTOlPes5Z76k/L/KB8NIpYJTCihq82WFpXKEVFA2MCO:eEtl9mRda12sX7hKB8NIyXbacAfB

Score
10/10
persistence

Malware Config

Targets

    • Target

      2023-04-24_ad8e2594b7bcba48e7cb4eaaea3c8245_ryuk

    • Size

      3.2MB

    • MD5

      ad8e2594b7bcba48e7cb4eaaea3c8245

    • SHA1

      96920a497b9b53f56db208f2af5535266f8a0c4d

    • SHA256

      a16bdded38087cd572f99c83b202f52320da42e15ca5f1d14b62eb3445e1ab67

    • SHA512

      93aafb1d788a1825a0018c5c736198add5727b878745f406fd0dc1da1be1665d924719a0ee7faf3dc654a31af6dcba0cb715d0da90c137333eeec894adc1f275

    • SSDEEP

      12288:sp4pNfz3ymJnJ8QCFkxCaQTOlPes5Z76k/L/KB8NIpYJTCihq82WFpXKEVFA2MCO:eEtl9mRda12sX7hKB8NIyXbacAfB

    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