Analysis

  • max time kernel
    144s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-06-2024 21:44

General

  • Target

    b559da7e61ee30cde08e8828e2da3ea8_JaffaCakes118.exe

  • Size

    4.3MB

  • MD5

    b559da7e61ee30cde08e8828e2da3ea8

  • SHA1

    02471973900935d54a56b2a4c274cc6be599ad74

  • SHA256

    247994f7482ea2b8f341b7a3b16d3b73fb60f3e7627053cf02fccc7d5148f514

  • SHA512

    aa1be37bcd4193848bf08985d03a9ff2ee15715b00c814e8dca38790024420733d761e1182816b71cef3e73785a9faf87e4c8d07dc52655c6836b385cc6017cb

  • SSDEEP

    98304:aqSh5zRZwYeMMIV3PsU6Z8y6TaOphYLYSHinQpUt/YV5DyzFf:ajHYOpCm/s9y

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of FindShellTrayWindow 3 IoCs
  • Suspicious use of SendNotifyMessage 3 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b559da7e61ee30cde08e8828e2da3ea8_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\b559da7e61ee30cde08e8828e2da3ea8_JaffaCakes118.exe"
    1⤵
    • Writes to the Master Boot Record (MBR)
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3528
    • C:\ProgramData\Чистилка\Чистилка.exe
      C:\ProgramData\Чистилка\Чистилка.exe /srvcreate
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1948

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\Чистилка\Чистилка.exe

    Filesize

    4.3MB

    MD5

    b559da7e61ee30cde08e8828e2da3ea8

    SHA1

    02471973900935d54a56b2a4c274cc6be599ad74

    SHA256

    247994f7482ea2b8f341b7a3b16d3b73fb60f3e7627053cf02fccc7d5148f514

    SHA512

    aa1be37bcd4193848bf08985d03a9ff2ee15715b00c814e8dca38790024420733d761e1182816b71cef3e73785a9faf87e4c8d07dc52655c6836b385cc6017cb