Analysis

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

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/10/2024, 04:40

General

  • Target

    2024-10-06_8c45bd4c0ee7dcb697245e77aa6ec5bf_cryptolocker.exe

  • Size

    58KB

  • MD5

    8c45bd4c0ee7dcb697245e77aa6ec5bf

  • SHA1

    e55ebda3e167aa7c8a8aafd76ed9b2c09caf407e

  • SHA256

    d0a7a9f6c8e2acfa2ad7fdbe69373d80954bf122e4ef0e3ea16c088482581122

  • SHA512

    46c230c2ffaab47237a82896b62f1f9b7c0f7702481d3c0c3a7f18d3deb584ed8bbceecbe3c228ad57412d28147f61ac0c40502206d710ea2bd861dd55569d3e

  • SSDEEP

    1536:Tj+jsMQMOtEvwDpj5HmpJpOUHECgNMo0vp2l9tML:TCjsIOtEvwDpj5HE/OUHnSMYQ

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\2024-10-06_8c45bd4c0ee7dcb697245e77aa6ec5bf_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-06_8c45bd4c0ee7dcb697245e77aa6ec5bf_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4480
    • 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:4848

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          58KB

          MD5

          eacbfbe3c661587bb37352c5899041e0

          SHA1

          2bd48a2e2d08e2c486fc6c8b570fbe2f66030fa3

          SHA256

          3752793e24d0bf898d8013e8f1e75bb81b5cb3705ea5d04382f8c5fc8c9ee885

          SHA512

          e3beb564f61f17f8b5dd1ea61246338add4681ba6125c9acb61541ee5fed9822921de04f7be22d0bd36622b0271bd6e07571286bc08946c9267d6b39aebe6a8d

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

          Filesize

          315B

          MD5

          a34ac19f4afae63adc5d2f7bc970c07f

          SHA1

          a82190fc530c265aa40a045c21770d967f4767b8

          SHA256

          d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

          SHA512

          42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

        • memory/4480-0-0x0000000000500000-0x000000000050E000-memory.dmp

          Filesize

          56KB

        • memory/4480-1-0x00000000006E0000-0x00000000006E6000-memory.dmp

          Filesize

          24KB

        • memory/4480-2-0x00000000006E0000-0x00000000006E6000-memory.dmp

          Filesize

          24KB

        • memory/4480-3-0x0000000000810000-0x0000000000816000-memory.dmp

          Filesize

          24KB

        • memory/4480-17-0x0000000000500000-0x000000000050E000-memory.dmp

          Filesize

          56KB

        • memory/4848-25-0x00000000007B0000-0x00000000007B6000-memory.dmp

          Filesize

          24KB

        • memory/4848-19-0x00000000007D0000-0x00000000007D6000-memory.dmp

          Filesize

          24KB

        • memory/4848-48-0x0000000000500000-0x000000000050E000-memory.dmp

          Filesize

          56KB