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Analysis

  • max time kernel
    150s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    07/09/2024, 07:34

General

  • Target

    2024-09-07_92aa70f667f382b1725d43b85cecc9ce_cryptolocker.exe

  • Size

    33KB

  • MD5

    92aa70f667f382b1725d43b85cecc9ce

  • SHA1

    9964a18803920dfdec5b0cda0b6e53b1099b5359

  • SHA256

    41dee2660a0b328e25caaaa7dd14621ea473b8b05a4d9a943dd0691a6a6ab93f

  • SHA512

    f083092470358581815f957e2c97fdd945483d8d660122b9cdb03516d626876d11ff1c85c9e7c236284e96db94f5fd532020ba9e48a17e3ca6ab1dbf41a95278

  • SSDEEP

    384:bG74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUGTGOe:bG74zYcgT/Ekd0ryfjo

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-09-07_92aa70f667f382b1725d43b85cecc9ce_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-07_92aa70f667f382b1725d43b85cecc9ce_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3796
    • C:\Users\Admin\AppData\Local\Temp\hasfj.exe
      "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:796
  • 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 --field-trial-handle=1296,i,1602949858158667699,12464335823361976127,262144 --variations-seed-version --mojo-platform-channel-handle=4360 /prefetch:8
    1⤵
      PID:3156

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\hasfj.exe

      Filesize

      33KB

      MD5

      fb085bd49957684e002722716131f6b0

      SHA1

      801e8b6fdd40b8cdc0d73468414f161974e344f2

      SHA256

      d8726d7079cd22d8ecf76bc44e7bc562e91abccfdc757c60ee7fe71c1478a16a

      SHA512

      677659b4735af838a9d0b440f4dd8b515f1ba75826de4ff3623db2fd8109bb05e7fd075ecd71ee2ff84aaf81143258f7e9c55b31836f09f43b4a88a1c73f8f95

    • memory/796-20-0x0000000003010000-0x0000000003016000-memory.dmp

      Filesize

      24KB

    • memory/796-19-0x0000000002D60000-0x0000000002D66000-memory.dmp

      Filesize

      24KB

    • memory/796-26-0x0000000008000000-0x000000000800A000-memory.dmp

      Filesize

      40KB

    • memory/3796-0-0x0000000008000000-0x000000000800A000-memory.dmp

      Filesize

      40KB

    • memory/3796-1-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

      Filesize

      24KB

    • memory/3796-2-0x0000000002EA0000-0x0000000002EA6000-memory.dmp

      Filesize

      24KB

    • memory/3796-3-0x0000000003150000-0x0000000003156000-memory.dmp

      Filesize

      24KB

    • memory/3796-17-0x0000000008000000-0x000000000800A000-memory.dmp

      Filesize

      40KB