Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    13/02/2024, 08:50

General

  • Target

    2024-02-13_e3d89e1d8f2282553cb33c041fde18ca_cryptolocker.exe

  • Size

    63KB

  • MD5

    e3d89e1d8f2282553cb33c041fde18ca

  • SHA1

    626a20e0239998d3f2d2dde6e9aedab68e4d2835

  • SHA256

    2c80ae28d38dd4a91cacf3a9b5c7623864c44920cf5708bc949757953d38d5aa

  • SHA512

    bb7168dd132c842c52839d80710b8044463107f5f25f61dc028bf32fa07ea26ab49c0587d6de2aeaf8edcdb945e52e3149fc2157f6a1a8a458e6832182e8f071

  • SSDEEP

    768:6Qz7yVEhs9+4OR7tOOtEvwDpjLHqPOYRmNxt5I52kGEO10Km9b:6j+1NMOtEvwDpjr8ox8UDEy0Km5

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • Detection of Cryptolocker Samples 5 IoCs
  • Detects executables built or packed with MPress PE compressor 5 IoCs
  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-02-13_e3d89e1d8f2282553cb33c041fde18ca_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-13_e3d89e1d8f2282553cb33c041fde18ca_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1380
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:1896

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          63KB

          MD5

          3aa823014967f53718293de2fe740a8f

          SHA1

          933fe0e9c7374f4cdc6a247fc44559e7aff12524

          SHA256

          fc5bd066cfa0398bfff2b3a3e620d2935c768060d49e8a8a1069a3243ef29d07

          SHA512

          0fc094f6d5c7dbfe57c108bf0b8108812e907c69b8b1c7ae015bce7a2dcc63ab0a82e626c4be11ae86c0a72eedfea97076012fabd3b6c0352a5f773154c62d90

        • memory/1380-0-0x0000000000500000-0x000000000050F000-memory.dmp

          Filesize

          60KB

        • memory/1380-1-0x0000000000240000-0x0000000000246000-memory.dmp

          Filesize

          24KB

        • memory/1380-3-0x0000000000240000-0x0000000000246000-memory.dmp

          Filesize

          24KB

        • memory/1380-2-0x0000000000270000-0x0000000000276000-memory.dmp

          Filesize

          24KB

        • memory/1380-15-0x0000000000500000-0x000000000050F000-memory.dmp

          Filesize

          60KB

        • memory/1896-18-0x0000000000300000-0x0000000000306000-memory.dmp

          Filesize

          24KB

        • memory/1896-19-0x00000000002C0000-0x00000000002C6000-memory.dmp

          Filesize

          24KB

        • memory/1896-17-0x0000000000500000-0x000000000050F000-memory.dmp

          Filesize

          60KB

        • memory/1896-26-0x0000000000500000-0x000000000050F000-memory.dmp

          Filesize

          60KB