Analysis

  • max time kernel
    78s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29/09/2024, 18:45

General

  • Target

    2024-09-29_c488a550e04b1d8dff6adb02d3c9b097_cryptolocker.exe

  • Size

    72KB

  • MD5

    c488a550e04b1d8dff6adb02d3c9b097

  • SHA1

    e4b78ce710ed34315d0ec546daccf431627a70de

  • SHA256

    f58992fd54d69c4f5cf6bd09bd3c6c2eee75350a58416c4e086816fc62bbe7d6

  • SHA512

    6e15c14ad99c0a69ca058edd76c8f5ea132987328177c30c2cf5227e5c8fd8c36a384f0158edc4ca43b85ed51279e3c3a77b7bb1c7f2359570f95a9d67c31979

  • SSDEEP

    768:vQz7yVEhs9+js1SQtOOtEvwDpjz9+4U9HueDgaRWDtJgXkeUT8:vj+jsMQMOtEvwDpj5H8u8rLXkem8

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\2024-09-29_c488a550e04b1d8dff6adb02d3c9b097_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-29_c488a550e04b1d8dff6adb02d3c9b097_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2180
    • 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:4976

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          73KB

          MD5

          cf5c7a0c9c6642321efd704a4b0bddac

          SHA1

          0bdd0eb79e1b95e39920749cffcbb860ce9df451

          SHA256

          113626f1fd711fe2e2699267dce069e9d3a7986e89528caf5aeb9a0673bc6a1d

          SHA512

          79b1ddf60752c9207696d7dc04707e2ee5f3a3c03679c6c9f2eb21e0f80218de1636e73e0df419fbc47e4db0bef269eb8344aa481d21623c02a3cb32dc9f4247

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

          Filesize

          315B

          MD5

          a34ac19f4afae63adc5d2f7bc970c07f

          SHA1

          a82190fc530c265aa40a045c21770d967f4767b8

          SHA256

          d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

          SHA512

          42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

        • memory/2180-0-0x0000000000600000-0x0000000000606000-memory.dmp

          Filesize

          24KB

        • memory/2180-1-0x0000000000600000-0x0000000000606000-memory.dmp

          Filesize

          24KB

        • memory/2180-2-0x0000000000620000-0x0000000000626000-memory.dmp

          Filesize

          24KB

        • memory/4976-17-0x00000000004D0000-0x00000000004D6000-memory.dmp

          Filesize

          24KB

        • memory/4976-18-0x00000000004F0000-0x00000000004F6000-memory.dmp

          Filesize

          24KB