Analysis

  • max time kernel
    158s
  • max time network
    161s
  • 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 12:00

General

  • Target

    fcb9e114a497fab48257a56f840f14fa_JaffaCakes118.exe

  • Size

    236KB

  • MD5

    fcb9e114a497fab48257a56f840f14fa

  • SHA1

    207dc216be84ba02f6c3ba2be2fff6e166fd30da

  • SHA256

    21d74be3b1d5f46fe4a6ff9450eabf057965f3442f97f94e7c8d5f4ca4b0fcd7

  • SHA512

    0d697dd6ff041ef914b01b0bdb0fb9f376b51816c1baf96d502d5c366b6ba8a99981e92138de325f4069f4263f5d3e6cb9aabacaf30c10a76333de9d4a59d3d6

  • SSDEEP

    6144:Z03XFuM4nLSgTh2IcymPCHWIlm1Fa1asHPncBcwm/keD:Zc1udnLSg03ymK2Ilm1F4a4kiwm/keD

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\fcb9e114a497fab48257a56f840f14fa_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\fcb9e114a497fab48257a56f840f14fa_JaffaCakes118.exe"
    1⤵
    • Enumerates connected drives
    • Writes to the Master Boot Record (MBR)
    • Drops file in Program Files directory
    • Modifies system certificate store
    PID:1248
  • 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=1400 --field-trial-handle=2256,i,6670388345726423024,18382795228658886258,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:2516

    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/1248-0-0x0000000000400000-0x0000000000488000-memory.dmp
      Filesize

      544KB

    • memory/1248-1-0x0000000000400000-0x0000000000488000-memory.dmp
      Filesize

      544KB

    • memory/1248-2-0x0000000000400000-0x0000000000488000-memory.dmp
      Filesize

      544KB

    • memory/1248-19-0x0000000000400000-0x0000000000488000-memory.dmp
      Filesize

      544KB

    • memory/1248-20-0x0000000000400000-0x0000000000488000-memory.dmp
      Filesize

      544KB

    • memory/1248-25-0x0000000000400000-0x0000000000488000-memory.dmp
      Filesize

      544KB

    • memory/1248-28-0x0000000000400000-0x0000000000488000-memory.dmp
      Filesize

      544KB