Analysis

  • max time kernel
    155s
  • max time network
    159s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-04-2024 21:21

General

  • Target

    fb305d865791085519692420688501a1_JaffaCakes118.exe

  • Size

    226KB

  • MD5

    fb305d865791085519692420688501a1

  • SHA1

    59be5872a3717814fffc9e9864086a0bfda87a81

  • SHA256

    78460d98a0bbf61d3d5a71b467ad3ff5ee57c7ad1941ad6387728ba4141ef1a6

  • SHA512

    21baf6c0c783542d29eb8b04cde3c03829de7c728213524aea6bcbe3c4a7a62ec00a951e7cd6f6cc312acadfdf8e0b6f8221a5e7a7b98c629ea99f8e554304eb

  • SSDEEP

    6144:mtpIG9yXvW0uA7zjxDtrnw15yqt2lCYqryqPZ07:mti0yXvWBkd1wb0BYy0Zm

Malware Config

Signatures

  • UPX packed file 7 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.

  • Drops file in Program Files directory 1 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fb305d865791085519692420688501a1_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\fb305d865791085519692420688501a1_JaffaCakes118.exe"
    1⤵
    • Enumerates connected drives
    • Writes to the Master Boot Record (MBR)
    • Drops file in Program Files directory
    • Modifies system certificate store
    PID:5100
  • 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=3692 --field-trial-handle=2244,i,11878111470816612087,2265290141962607370,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:2976

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/5100-0-0x0000000000400000-0x0000000000487000-memory.dmp
      Filesize

      540KB

    • memory/5100-16-0x0000000000400000-0x0000000000487000-memory.dmp
      Filesize

      540KB

    • memory/5100-20-0x0000000000400000-0x0000000000487000-memory.dmp
      Filesize

      540KB

    • memory/5100-21-0x0000000000400000-0x0000000000487000-memory.dmp
      Filesize

      540KB

    • memory/5100-25-0x0000000000400000-0x0000000000487000-memory.dmp
      Filesize

      540KB

    • memory/5100-27-0x0000000000400000-0x0000000000487000-memory.dmp
      Filesize

      540KB

    • memory/5100-29-0x0000000000400000-0x0000000000487000-memory.dmp
      Filesize

      540KB