Analysis

  • max time kernel
    91s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/06/2024, 21:31

General

  • Target

    2024-06-09_4d5084320b7b185cdb13aeae117f0ebb_cryptolocker.exe

  • Size

    38KB

  • MD5

    4d5084320b7b185cdb13aeae117f0ebb

  • SHA1

    10aeb848b1056689c70f9f26e0508a6021e4581b

  • SHA256

    a09dc0edf1b25dd9a144d8e260eaee2f8a08fc9c899ee7db222289c4873cb041

  • SHA512

    e0bfafcd09be3af52f95c6407bee688e4f767d84685f62502904ebfdd241485cf53440e57018a1f1a6fed490c91b86d7557157efde0623bb0e70a8c6345f972d

  • SSDEEP

    768:fTz7y3lhsT+hs1SQtOOtEvwDpjfAu9+4KgMM:fT+hsMQMOtEvwDpjoIHJ

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Detection of Cryptolocker Samples 1 IoCs
  • 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).

  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-06-09_4d5084320b7b185cdb13aeae117f0ebb_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-09_4d5084320b7b185cdb13aeae117f0ebb_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:116
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Checks computer location settings
      • Executes dropped EXE
      • Modifies system certificate store
      PID:2468

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          39KB

          MD5

          708c1f677a01decd1d3b805b5d83ef30

          SHA1

          e2c3264045220cccdcbb58ce3edcd36a0106da4a

          SHA256

          c61510368efe9f2dfa153c6e6e6431c34b6025899991fd3e24be779f92371b7a

          SHA512

          96282f3700d5d755d9dc9461c4caf6f29371d915e92037086fb70a0525af92f54d8403228553e392be939c4213784d0e4420506d50f24efd617c9d8e61ca342d

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

          Filesize

          315B

          MD5

          a34ac19f4afae63adc5d2f7bc970c07f

          SHA1

          a82190fc530c265aa40a045c21770d967f4767b8

          SHA256

          d5a89e26beae0bc03ad18a0b0d1d3d75f87c32047879d25da11970cb5c4662a3

          SHA512

          42e53d96e5961e95b7a984d9c9778a1d3bd8ee0c87b8b3b515fa31f67c2d073c8565afc2f4b962c43668c4efa1e478da9bb0ecffa79479c7e880731bc4c55765

        • memory/116-0-0x00000000005A0000-0x00000000005A6000-memory.dmp

          Filesize

          24KB

        • memory/116-2-0x00000000005C0000-0x00000000005C6000-memory.dmp

          Filesize

          24KB

        • memory/116-8-0x00000000005A0000-0x00000000005A6000-memory.dmp

          Filesize

          24KB

        • memory/2468-17-0x00000000005D0000-0x00000000005D6000-memory.dmp

          Filesize

          24KB

        • memory/2468-23-0x00000000005B0000-0x00000000005B6000-memory.dmp

          Filesize

          24KB