Analysis

  • max time kernel
    95s
  • 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
    02/10/2024, 04:27

General

  • Target

    2024-10-02_63bc51983036e3c7c93a7f96fc909e31_cryptolocker.exe

  • Size

    79KB

  • MD5

    63bc51983036e3c7c93a7f96fc909e31

  • SHA1

    2554ec9ffff4ce599d483f207d515ca84b675153

  • SHA256

    48ebfb9e7a3d50b3e1fa7c3b69826d46932e859903c1230e162b50782a4994ac

  • SHA512

    b12180553e63cd0c9841a1b581a0596d5cfd33051c3c4ad529646d709d1124fadcdd80d41f15846e8dd598f3b6067feff313a807639bfc3886c1e3d76f725bd7

  • SSDEEP

    1536:ZzFbxmLPWQMOtEvwDpj386Sj/WprgJN6tZdOyJ3KUJ/:ZVxkGOtEvwDpjca1/

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\2024-10-02_63bc51983036e3c7c93a7f96fc909e31_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-02_63bc51983036e3c7c93a7f96fc909e31_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:428
    • 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:2232

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          79KB

          MD5

          e79aad2093c41715875d99d3d70acab4

          SHA1

          770c8f8d428ce3fa23ec2cea020e9a725b47f29e

          SHA256

          237db47bbeaefdfc6f7ddb7be1e24473faa3e92b3a131febad09c1352c892f69

          SHA512

          a3e3382f034370aeb17d0d49cd2cb72ecab955ea41ca9f02740e8146aa5a9fb2c72f5625b938f284f1c18ac2fc64db595462ac8194b02e419edbb6f3cf466812

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

          Filesize

          315B

          MD5

          a34ac19f4afae63adc5d2f7bc970c07f

          SHA1

          a82190fc530c265aa40a045c21770d967f4767b8

          SHA256

          d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

          SHA512

          42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

        • memory/428-0-0x00000000004E0000-0x00000000004E3000-memory.dmp

          Filesize

          12KB

        • memory/428-1-0x00000000005E0000-0x00000000005E6000-memory.dmp

          Filesize

          24KB

        • memory/428-2-0x00000000005E0000-0x00000000005E6000-memory.dmp

          Filesize

          24KB

        • memory/428-3-0x0000000000600000-0x0000000000606000-memory.dmp

          Filesize

          24KB

        • memory/428-17-0x00000000004E0000-0x00000000004E3000-memory.dmp

          Filesize

          12KB

        • memory/2232-20-0x0000000000750000-0x0000000000756000-memory.dmp

          Filesize

          24KB

        • memory/2232-19-0x0000000000620000-0x0000000000626000-memory.dmp

          Filesize

          24KB