Overview

overview

10

Static

static

3

2023-08-26...JC.exe

windows7-x64

10

2023-08-26...JC.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    2023-08-26_d0f07e005a56362e5bd923e03ee961a4_ryuk_JC.exe

  • Size

    8.7MB

  • Sample

    231011-f4eprabf9z

  • MD5

    d0f07e005a56362e5bd923e03ee961a4

  • SHA1

    2ac0cc989aeea99c01def90a83d7d6148bf5de56

  • SHA256

    1421275917b94e54e3f832c77a4443f934e51b2d4fd78e169bc308cbbec0cbca

  • SHA512

    94483a88431f9a40a149743ddd27bce0bf2b51e08cb3fcb3575c5e00870ae0fd7f89f23f4277bc1801f46e615ac0e13ac16657993e4d5120f694a14578e2bdcf

  • SSDEEP

    98304:9E2RpMMHMMMvMMZMMMlmMMMiMMMYJMMHMMM6MMZMMMqNMMzMMMUMMVMMMYJMMzMp:9nwnu

Score
10/10
persistence

Malware Config

Targets

    • Target

      2023-08-26_d0f07e005a56362e5bd923e03ee961a4_ryuk_JC.exe

    • Size

      8.7MB

    • MD5

      d0f07e005a56362e5bd923e03ee961a4

    • SHA1

      2ac0cc989aeea99c01def90a83d7d6148bf5de56

    • SHA256

      1421275917b94e54e3f832c77a4443f934e51b2d4fd78e169bc308cbbec0cbca

    • SHA512

      94483a88431f9a40a149743ddd27bce0bf2b51e08cb3fcb3575c5e00870ae0fd7f89f23f4277bc1801f46e615ac0e13ac16657993e4d5120f694a14578e2bdcf

    • SSDEEP

      98304:9E2RpMMHMMMvMMZMMMlmMMMiMMMYJMMHMMM6MMZMMMqNMMzMMMUMMVMMMYJMMzMp:9nwnu

    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