Analysis

  • max time kernel
    94s
  • max time network
    123s
  • 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, 00:52

General

  • Target

    2024-10-06_65e4d460a57415e72847e79fd15ece75_cryptolocker.exe

  • Size

    48KB

  • MD5

    65e4d460a57415e72847e79fd15ece75

  • SHA1

    c8b0efdabd21ab126a0f4d79e12d4225550b79d5

  • SHA256

    f0147912674598fe379428553d0e6c6da60498c5a6f19859715dae27cefc82dc

  • SHA512

    ac72373c6eebca23b7784cde70eca94b630b02a14e4df93597990ec0aeeda8edc23705128a3b59397c398a2fdefc9c2e35ed75d12c7634dcbb152891b3da69b5

  • SSDEEP

    768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqh6/aMDhkJ5:6j+1NMOtEvwDpjrRraJ5

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_65e4d460a57415e72847e79fd15ece75_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-06_65e4d460a57415e72847e79fd15ece75_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4724
    • 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:1676

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          48KB

          MD5

          2df15fd03b2e576fb309155166f1227e

          SHA1

          60f3ab7f24ed025a16728f1ca6d87743eff66f76

          SHA256

          4bd1b254ed8070624fbbaf549d1fe966b21e7c934780d0f4ec99d2cf2dbfcb4c

          SHA512

          2880c2e52bdf98b4669de2ec3ff1b460813e7ea21acb9fb6bf2c2b61b04c1b6724267b620636a642ecaed10af23aa078bbd642571a6a072808c4dd40cb04f5a5

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

          Filesize

          315B

          MD5

          a34ac19f4afae63adc5d2f7bc970c07f

          SHA1

          a82190fc530c265aa40a045c21770d967f4767b8

          SHA256

          d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

          SHA512

          42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

        • memory/1676-19-0x0000000000690000-0x0000000000696000-memory.dmp

          Filesize

          24KB

        • memory/1676-25-0x0000000000660000-0x0000000000666000-memory.dmp

          Filesize

          24KB

        • memory/1676-48-0x0000000000500000-0x000000000050F000-memory.dmp

          Filesize

          60KB

        • memory/4724-0-0x0000000000500000-0x000000000050F000-memory.dmp

          Filesize

          60KB

        • memory/4724-1-0x00000000007B0000-0x00000000007B6000-memory.dmp

          Filesize

          24KB

        • memory/4724-2-0x00000000007B0000-0x00000000007B6000-memory.dmp

          Filesize

          24KB

        • memory/4724-3-0x00000000007D0000-0x00000000007D6000-memory.dmp

          Filesize

          24KB

        • memory/4724-18-0x0000000000500000-0x000000000050F000-memory.dmp

          Filesize

          60KB