Analysis

  • max time kernel
    136s
  • max time network
    137s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    11/08/2024, 02:23

General

  • Target

    2024-08-11_682e855487e1a88cbebb4c18179f9aa5_cryptolocker.exe

  • Size

    73KB

  • MD5

    682e855487e1a88cbebb4c18179f9aa5

  • SHA1

    0f269056166dff74cc307b81a589d204b92458e2

  • SHA256

    becc0ad06d192a4b789b6378348e929f68f23be6c1a835d1b3f8e29d573bec41

  • SHA512

    b982c943646b3e20a1f01e369f5d5117567307508cae4e3b27aa770e4fdaa70d05eff52834ce2d52e0fa8c689553d5017ff29a548834b8ff760ee2b439ec016b

  • SSDEEP

    768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4ZPsED3VK2+ZtyOjgO4r9vFAg2rq2g1B/RE:vj+jsMQMOtEvwDpj5HZYTjipvF24pu

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\2024-08-11_682e855487e1a88cbebb4c18179f9aa5_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-08-11_682e855487e1a88cbebb4c18179f9aa5_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4484
    • 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:1352

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          73KB

          MD5

          0806fc50198ab67eb845ccb34da0ce0c

          SHA1

          396262aa0a83f18d19b27b4f6b1c4302e08b8b43

          SHA256

          59095bc15af22d322d77eb63ee4999373c4e475ff2c5d6f981e88bdc26454f3b

          SHA512

          47c405347624609471225ce557eda27af818d9dd0e98f132953c2042b00d92691fb98f7577edf48aaf22c6c8a4fbc76e2c6cd4e2384867d745d41b526b9d2b00

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

          Filesize

          315B

          MD5

          a34ac19f4afae63adc5d2f7bc970c07f

          SHA1

          a82190fc530c265aa40a045c21770d967f4767b8

          SHA256

          d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

          SHA512

          42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

        • memory/1352-17-0x0000000002100000-0x0000000002106000-memory.dmp

          Filesize

          24KB

        • memory/1352-23-0x0000000000640000-0x0000000000646000-memory.dmp

          Filesize

          24KB

        • memory/4484-0-0x00000000006A0000-0x00000000006A6000-memory.dmp

          Filesize

          24KB

        • memory/4484-1-0x00000000006A0000-0x00000000006A6000-memory.dmp

          Filesize

          24KB

        • memory/4484-2-0x00000000007D0000-0x00000000007D6000-memory.dmp

          Filesize

          24KB