Analysis

  • max time kernel
    137s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    06/06/2024, 21:29

General

  • Target
    2024-06-06_83abd5ec9bb592ef3feb8a82c21e1572_cryptolocker.exe
  • Size 66KB
  • Sample240606-1cdzcsdd57
  • SHA256 a42a7e261f242405813fe82aeb55d059d0e4486e68d030ef66d9361885371277
  • MD5 SHA1 SHA512 SSDEEP
Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Detection of Cryptolocker Samples 1 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 UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-06-06_83abd5ec9bb592ef3feb8a82c21e1572_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-06_83abd5ec9bb592ef3feb8a82c21e1572_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2068
    • C:\Users\Admin\AppData\Local\Temp\hurok.exe
      "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of UnmapMainImage
      PID:2552

Network

        MITRE ATT&CK Enterprise v15

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        Downloads

        hurok.exe

        • Path \Users\Admin\AppData\Local\Temp\hurok.exe
        • Size 66KB
        • SHA256 722d7d8ed54a25b0032038aeb10c42a789fe455beca7a0bda5aa70d6d978e627
        • MD5 SHA1 SHA512 SSDEEP

        memory/2068-0-0x00000000001C0000-0x00000000001C6000-memory.dmp

        memory/2068-2-0x0000000000400000-0x0000000000406000-memory.dmp

        memory/2068-1-0x00000000001C0000-0x00000000001C6000-memory.dmp

        memory/2552-23-0x0000000000230000-0x0000000000236000-memory.dmp