Analysis

  • max time kernel
    138s
  • max time network
    131s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/08/2024, 07:04

General

  • Target

    2024-08-25_eb42399e474e63b70233237d52bde9e6_cryptolocker.exe

  • Size

    31KB

  • MD5

    eb42399e474e63b70233237d52bde9e6

  • SHA1

    9d1127076c4240f764aa85c7ef44ad20cc7acd74

  • SHA256

    7ed3cebc19ee2e5bf6d81b7a87a9b8f33cb005782edfb95cd75a67f2b17ca45b

  • SHA512

    0ceb4857d31365d5a441cfcebee7357620d7424f4b09fa5d817f7908ec7a0511d1886325489b0915c398fc6763bf58fdcc5a773b826f902c478cd328bb8970f8

  • SSDEEP

    384:v0VkMq01bJ3wtEwPS8HLEh+Jagz+3be+26Rsn1rCcOQtOOtEvwDpjqIGRS/Vb9h3:vQz7yVEhs9+js1SQtOOtEvwDpjz9+9A

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 7 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-08-25_eb42399e474e63b70233237d52bde9e6_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-08-25_eb42399e474e63b70233237d52bde9e6_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4940
    • 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:4708

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          31KB

          MD5

          b75134b1e18010f1672bc1f95775d547

          SHA1

          e9e9338fa4dee6305188d7c6f637dfcff96602d8

          SHA256

          f5abf08c92bad27a7400e070929cd3bdbba623c70ff8718e8d529944da2df646

          SHA512

          0de993ab74016758c0ac8c1b7311daaecac61ba3ccceb0c1ad85a47e7122ee913c071dab270e2f2e2b1c9d17d888245199a728bdb807fc05b795020c5d93e472

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

          Filesize

          315B

          MD5

          a34ac19f4afae63adc5d2f7bc970c07f

          SHA1

          a82190fc530c265aa40a045c21770d967f4767b8

          SHA256

          d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

          SHA512

          42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

        • memory/4708-23-0x00000000005B0000-0x00000000005B6000-memory.dmp

          Filesize

          24KB

        • memory/4708-17-0x00000000005D0000-0x00000000005D6000-memory.dmp

          Filesize

          24KB

        • memory/4940-0-0x00000000005A0000-0x00000000005A6000-memory.dmp

          Filesize

          24KB

        • memory/4940-1-0x00000000005A0000-0x00000000005A6000-memory.dmp

          Filesize

          24KB

        • memory/4940-2-0x00000000006C0000-0x00000000006C6000-memory.dmp

          Filesize

          24KB