Analysis

  • max time kernel
    94s
  • max time network
    128s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/09/2024, 03:47

General

  • Target

    2024-09-21_e484dc2cbf3e3e0cba7d3e2d276701e1_cryptolocker.exe

  • Size

    74KB

  • MD5

    e484dc2cbf3e3e0cba7d3e2d276701e1

  • SHA1

    5216766dbba09274d92b4039cd729b5875956e20

  • SHA256

    cb526bf3c54be93195ee1461e71877da6b6aa1b395acf34ac8626b919a974977

  • SHA512

    a40086179252b67cfe288c2fbc2156b4e35192d0135d7ca4474346590bca7f049be7e1ce4755475a3e8b2aa64faf87a564c7ffe0805970af7f598f43144c5e90

  • SSDEEP

    768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4ZPsED3VK2+ZtyOjgO4r9vFAg2rq2g1B/RO:vj+jsMQMOtEvwDpj5HZYTjipvF24pE

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 2 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.

  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-09-21_e484dc2cbf3e3e0cba7d3e2d276701e1_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-21_e484dc2cbf3e3e0cba7d3e2d276701e1_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:5796
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Modifies system certificate store
      PID:5700

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          74KB

          MD5

          ba1ca61af27a0d38353f3383738f01a0

          SHA1

          c89241d5a02169206b895d1a442a27814301829a

          SHA256

          20f775f11500fdd54a0390435e36c3ca0b6bf4f80cbcd29bfbc5448479b8b94a

          SHA512

          868c2cac3f17b457ac6db2775f97eed4381f04e58f8361f4fd035bfde93673df880d03938d8ecec84bf031b41673fd1e92a009b371c2af24e43095a89c3132ca

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

          Filesize

          315B

          MD5

          a34ac19f4afae63adc5d2f7bc970c07f

          SHA1

          a82190fc530c265aa40a045c21770d967f4767b8

          SHA256

          d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

          SHA512

          42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

        • memory/5700-17-0x00000000004D0000-0x00000000004D6000-memory.dmp

          Filesize

          24KB

        • memory/5700-18-0x00000000004F0000-0x00000000004F6000-memory.dmp

          Filesize

          24KB

        • memory/5796-0-0x0000000000670000-0x0000000000676000-memory.dmp

          Filesize

          24KB

        • memory/5796-1-0x0000000000670000-0x0000000000676000-memory.dmp

          Filesize

          24KB

        • memory/5796-2-0x00000000021C0000-0x00000000021C6000-memory.dmp

          Filesize

          24KB