Analysis

  • max time kernel
    141s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-04-2024 10:35

General

  • Target

    fc8ffdf93c767bb1c3bc1603cab27231_JaffaCakes118.exe

  • Size

    341KB

  • MD5

    fc8ffdf93c767bb1c3bc1603cab27231

  • SHA1

    5c9fab9da5d4426892060ee9fbfe9de21c95f9ab

  • SHA256

    7158299d6ef77309745e5c3823b1c7f84779895bf489a6e81f8886f5e11aed46

  • SHA512

    64809d76e6c86aaa02a1d70d5a21672243c27b6cb8fa94be5a6fcf01d3463c7b28b95e6564701c7be2d6ff0f06761fcb62becc31ae05cb542760e11fb4340d1b

  • SSDEEP

    6144:/fZ/nwzIhoZib9i0ju9BKVoEZUWOQi1swCSvAvisuyWzCYqLDT1SDL:/fpPOZiBiq3zxJi1swCSoc3C/bOL

Malware Config

Signatures

  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Enumerates connected drives 3 TTPs 21 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • 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 system certificate store 2 TTPs 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fc8ffdf93c767bb1c3bc1603cab27231_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\fc8ffdf93c767bb1c3bc1603cab27231_JaffaCakes118.exe"
    1⤵
    • Enumerates connected drives
    • Writes to the Master Boot Record (MBR)
    • Modifies system certificate store
    PID:4664
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4476 --field-trial-handle=2656,i,16940681401824032220,151921362336696246,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:4900

    Network

    MITRE ATT&CK Matrix ATT&CK v13

    Persistence

    Pre-OS Boot

    1
    T1542

    Bootkit

    1
    T1542.003

    Defense Evasion

    Pre-OS Boot

    1
    T1542

    Bootkit

    1
    T1542.003

    Subvert Trust Controls

    1
    T1553

    Install Root Certificate

    1
    T1553.004

    Modify Registry

    1
    T1112

    Discovery

    Query Registry

    1
    T1012

    Peripheral Device Discovery

    1
    T1120

    System Information Discovery

    1
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/4664-0-0x0000000000400000-0x00000000004BF000-memory.dmp
      Filesize

      764KB

    • memory/4664-14-0x0000000000400000-0x00000000004BF000-memory.dmp
      Filesize

      764KB