Overview

overview

10

Static

static

3

2023-08-27...JC.exe

windows7-x64

10

2023-08-27...JC.exe

windows10-2004-x64

10

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General

  • Target

    2023-08-27_66c766d6eb6d4b35cf5d4629ea86c046_ryuk_JC.exe

  • Size

    20.8MB

  • Sample

    231002-y7gydsgd28

  • MD5

    66c766d6eb6d4b35cf5d4629ea86c046

  • SHA1

    15d061b62aa02a288e3f6cdcfee189358d390aa3

  • SHA256

    df03376691e234157541c57b8cea634eeebd1e977c31230c4dada5c3fafa2b4f

  • SHA512

    61995e741c4fc6ec1a4c4cc59c0ffa2c2a4acf0fe735233a185929ed81dd1dfb9dbe8d4e691325a34e98e020142f6579cc4161e83b40227f6ff86b3de52d8c07

  • SSDEEP

    98304:9E2RpMMHMMMvMMZMMMlmMMMiMMMYJMMHMMM6MMZMMMqNMMzMMMUMMVMMMYJMMzMe:9nwngnwnBRn

Score
10/10
persistence

Malware Config

Targets

    • Target

      2023-08-27_66c766d6eb6d4b35cf5d4629ea86c046_ryuk_JC.exe

    • Size

      20.8MB

    • MD5

      66c766d6eb6d4b35cf5d4629ea86c046

    • SHA1

      15d061b62aa02a288e3f6cdcfee189358d390aa3

    • SHA256

      df03376691e234157541c57b8cea634eeebd1e977c31230c4dada5c3fafa2b4f

    • SHA512

      61995e741c4fc6ec1a4c4cc59c0ffa2c2a4acf0fe735233a185929ed81dd1dfb9dbe8d4e691325a34e98e020142f6579cc4161e83b40227f6ff86b3de52d8c07

    • SSDEEP

      98304:9E2RpMMHMMMvMMZMMMlmMMMiMMMYJMMHMMM6MMZMMMqNMMzMMMUMMVMMMYJMMzMe:9nwngnwnBRn

    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 v15

Tasks