Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    11/06/2024, 12:48

General

  • Target
    2024-06-11_a93be013d2f62e81b4e20abd304cd7d8_cryptolocker.exe
  • Size 43KB
  • Sample240611-p14ddaxdjg
  • SHA256 5a57a9a7fb2241b3c396d7ba86d1c9f58d5475950c93a04863a1f4b9500dbb1c
  • MD5 SHA1 SHA512 SSDEEP
Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 4 IoCs
  • Detection of Cryptolocker Samples 2 IoCs
  • Detects executables built or packed with MPress PE compressor 4 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\2024-06-11_a93be013d2f62e81b4e20abd304cd7d8_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-11_a93be013d2f62e81b4e20abd304cd7d8_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2348
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:2272

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        misid.exe

        • Path \Users\Admin\AppData\Local\Temp\misid.exe
        • Size 43KB
        • SHA256 69135b079efe8a91ce3bc3d09c6c5819054d478bf7a4efbaf0d53118d199da01
        • MD5 SHA1 SHA512 SSDEEP

        memory/2272-19-0x0000000000280000-0x0000000000286000-memory.dmp

        memory/2272-18-0x0000000000240000-0x0000000000246000-memory.dmp

        memory/2272-26-0x0000000000500000-0x000000000050E000-memory.dmp

        memory/2348-0-0x0000000000500000-0x000000000050E000-memory.dmp

        memory/2348-1-0x00000000001D0000-0x00000000001D6000-memory.dmp

        memory/2348-2-0x00000000004E0000-0x00000000004E6000-memory.dmp

        memory/2348-8-0x00000000001D0000-0x00000000001D6000-memory.dmp

        memory/2348-16-0x0000000000500000-0x000000000050E000-memory.dmp