Analysis

  • max time kernel
    140s
  • max time network
    136s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/10/2024, 04:35

General

  • Target

    2024-10-15_655de54abc376c0cfe6a374d0c9d056b_cryptolocker.exe

  • Size

    57KB

  • MD5

    655de54abc376c0cfe6a374d0c9d056b

  • SHA1

    75bf30eb950ed0779c103ba1e71c79cb57aacd82

  • SHA256

    5f51fabfa115abe97e15284ec166ded25b0b2a679f9636e37cf804eebe9604b4

  • SHA512

    e029717f96d08eb909d276312396b238d1406771337f682668a3598b58456511ec5c635d6f9a2d277bcb0afe12dcbb1ca438eb6f9b5bd32fdc63fb0247d791cd

  • SSDEEP

    768:UEEmoQDj/xnMp+yptndwe/PWQtOOtEvwDpjIm8lB4dCOBy/cMFqeo9e1KfzV:ZzFbxmLPWQMOtEvwDpj38lD/cMAPjV

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\2024-10-15_655de54abc376c0cfe6a374d0c9d056b_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-15_655de54abc376c0cfe6a374d0c9d056b_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4148
    • 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:2792

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          57KB

          MD5

          ef5b146a56c5896999801938c17c46e6

          SHA1

          3f218a08a0a774fc641bce1cc77029107e5cf561

          SHA256

          e720f9f73db0e0e5acab48a503a741c988cea303c3dc6bff1e35524434f09085

          SHA512

          0f961086f60987e1dc2bcd53b378fbeac251c744c2a6ca7eda28359ad81f15306d6be3a0c9256e9f0dd62b13a0fb006d3c1cfba51b5a8f429b0dbd9adcc81760

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

          Filesize

          315B

          MD5

          a34ac19f4afae63adc5d2f7bc970c07f

          SHA1

          a82190fc530c265aa40a045c21770d967f4767b8

          SHA256

          d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

          SHA512

          42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

        • memory/2792-18-0x0000000000450000-0x0000000000490000-memory.dmp

          Filesize

          256KB

        • memory/2792-21-0x0000000000510000-0x0000000000516000-memory.dmp

          Filesize

          24KB

        • memory/2792-20-0x00000000004E0000-0x00000000004E6000-memory.dmp

          Filesize

          24KB

        • memory/4148-0-0x0000000000410000-0x0000000000413000-memory.dmp

          Filesize

          12KB

        • memory/4148-1-0x00000000004D0000-0x00000000004D6000-memory.dmp

          Filesize

          24KB

        • memory/4148-2-0x00000000004D0000-0x00000000004D6000-memory.dmp

          Filesize

          24KB

        • memory/4148-3-0x00000000004F0000-0x00000000004F6000-memory.dmp

          Filesize

          24KB

        • memory/4148-17-0x0000000000410000-0x0000000000413000-memory.dmp

          Filesize

          12KB