Analysis

  • max time kernel
    139s
  • 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
    21/08/2024, 14:27

General

  • Target

    2024-08-21_2b012004f8f84002b5c2709a021537b6_cryptolocker.exe

  • Size

    47KB

  • MD5

    2b012004f8f84002b5c2709a021537b6

  • SHA1

    671964ab1ed51d8f2af2a8348e3475a4187d56d2

  • SHA256

    e0654e0dfbf4f18d6ec86dda743f976e7b09fa0c943bdbda57837249ee2ef9a0

  • SHA512

    9e37b9db4eb7cc6d6e02a5ec878e4fdde11b9ad6fc83718d2ae2aad6dea2081e188097361113bcf6dd45e59d3171d3288f79d264a9da80d628a3b5809b1bbfbc

  • SSDEEP

    768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqh6/aMDhkJI:6j+1NMOtEvwDpjrRraJI

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\2024-08-21_2b012004f8f84002b5c2709a021537b6_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-08-21_2b012004f8f84002b5c2709a021537b6_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:624
    • 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:3028

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          47KB

          MD5

          8e221177ef8f55463790982d1b5f417e

          SHA1

          94eec0ac27d57b125bc8c8c7cf3936868ed7cf0a

          SHA256

          8d3251f8f9cc44df079e4472cbc03fbe922985d18edb1022618eac9ed7c05d21

          SHA512

          d8f3e3279c7b7a71c9f6e4d8bc4735992deb42d62b2f0b5d3af5dee4657e1e478acfd59bcc0075c476a71bd3b654e460a7137ebf777de6128a47a40c45ad12f7

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

          Filesize

          315B

          MD5

          a34ac19f4afae63adc5d2f7bc970c07f

          SHA1

          a82190fc530c265aa40a045c21770d967f4767b8

          SHA256

          d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

          SHA512

          42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

        • memory/624-0-0x0000000000500000-0x000000000050F000-memory.dmp

          Filesize

          60KB

        • memory/624-1-0x0000000002050000-0x0000000002056000-memory.dmp

          Filesize

          24KB

        • memory/624-2-0x0000000002050000-0x0000000002056000-memory.dmp

          Filesize

          24KB

        • memory/624-3-0x0000000002100000-0x0000000002106000-memory.dmp

          Filesize

          24KB

        • memory/624-17-0x0000000000500000-0x000000000050F000-memory.dmp

          Filesize

          60KB

        • memory/3028-19-0x00000000005C0000-0x00000000005C6000-memory.dmp

          Filesize

          24KB

        • memory/3028-25-0x00000000005A0000-0x00000000005A6000-memory.dmp

          Filesize

          24KB

        • memory/3028-39-0x0000000000500000-0x000000000050F000-memory.dmp

          Filesize

          60KB