Analysis

  • max time kernel
    122s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    03-07-2024 08:34

General

  • Target

    21b7dfd618ceedda5f3f261e00a15874_JaffaCakes118.dll

  • Size

    184KB

  • MD5

    21b7dfd618ceedda5f3f261e00a15874

  • SHA1

    85f59d993eeb7302f6d7f6ad05a887cd5a06588a

  • SHA256

    727bf8ed4a99bf80775d70308684bf539053894571f8ff274fb94227e28115b8

  • SHA512

    e3ed337f1479f5d0b00a510c4061f60c530c55600d9bd0e624e19135fe1c618de79bd7c38a973e60f2403b8cb0e63b79aa9b9e9bd9bf6ec014399c55a8137077

  • SSDEEP

    3072:ky9N/aaNM9aHDMzMhlrapiEK0bbrMbvT0q8O1cZPzQ7IXMBc+AMP+QfQEhxFyVU+:kmjK9CDMzMAiEvwvP6bQ7yMP+DE827cf

Score
6/10

Malware Config

Signatures

  • 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.

  • Modifies registry class 17 IoCs
  • Suspicious use of WriteProcessMemory 7 IoCs

Processes

  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\21b7dfd618ceedda5f3f261e00a15874_JaffaCakes118.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1660
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\21b7dfd618ceedda5f3f261e00a15874_JaffaCakes118.dll
      2⤵
      • Writes to the Master Boot Record (MBR)
      • Modifies registry class
      PID:1020

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/1020-0-0x0000000010000000-0x0000000010046000-memory.dmp

    Filesize

    280KB

  • memory/1020-1-0x00000000020F0000-0x0000000002120000-memory.dmp

    Filesize

    192KB

  • memory/1020-2-0x00000000008E0000-0x00000000008E3000-memory.dmp

    Filesize

    12KB