Overview

overview

10

Static

static

3

25b57ff2fe...18.exe

windows7-x64

10

25b57ff2fe...18.exe

windows10-2004-x64

10

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General

  • Target

    25b57ff2fe11322bcf72283bbd6ae6be_JaffaCakes118

  • Size

    2.9MB

  • Sample

    241008-1bqlrsybpj

  • MD5

    25b57ff2fe11322bcf72283bbd6ae6be

  • SHA1

    a344850c803e966e74163b66af20014b104996d4

  • SHA256

    79bc2c38683eb148a21522a5614d2cbf081a6e746e4275a2d91f30e38cda0269

  • SHA512

    f09aa0e795bb5cc0ab31707eb62daa714802e8609a280439bd336b887d81c07f2665e669f5e0ca027c91ec178abb94fb0e35c7c718b510b44a0719c9defe1779

  • SSDEEP

    12288:Pp4pNfz3ymJnJ8QCFkxCaQTOl2KCsltH4cgZD5+6aYMasAYXG3Wv:xEtl9mRda1MIHYPyBashXG3Wv

Score
10/10
discoverypersistenceransomware

Malware Config

Targets

    • Target

      25b57ff2fe11322bcf72283bbd6ae6be_JaffaCakes118

    • Size

      2.9MB

    • MD5

      25b57ff2fe11322bcf72283bbd6ae6be

    • SHA1

      a344850c803e966e74163b66af20014b104996d4

    • SHA256

      79bc2c38683eb148a21522a5614d2cbf081a6e746e4275a2d91f30e38cda0269

    • SHA512

      f09aa0e795bb5cc0ab31707eb62daa714802e8609a280439bd336b887d81c07f2665e669f5e0ca027c91ec178abb94fb0e35c7c718b510b44a0719c9defe1779

    • SSDEEP

      12288:Pp4pNfz3ymJnJ8QCFkxCaQTOl2KCsltH4cgZD5+6aYMasAYXG3Wv:xEtl9mRda1MIHYPyBashXG3Wv

    Score
    10/10
    discoverypersistenceransomware

    • Modifies WinLogon for persistence

      persistence

    • Renames multiple (91) files with added filename extension

      This suggests ransomware activity of encrypting all the files on the system.

      ransomware

    • 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