Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    20/11/2024, 05:27

General

  • Target

    2024-11-20_d71869270b9a966c67faa68a7e5558e3_cryptolocker.exe

  • Size

    49KB

  • MD5

    d71869270b9a966c67faa68a7e5558e3

  • SHA1

    85781b2c04515caa91fc8978066f62686f432699

  • SHA256

    d08446443e2370c4896d1ea69af114ceccdce9cefbf063048f7788d3392bf6e3

  • SHA512

    2376fe9ef10176ece3ba8b92bfe2b2477cc39bee1dd45a1fbd06931e9386eca1623ba770994fe1799e9c1ce72a30b7e73962fe0963853f5f10be2571b347b7db

  • SSDEEP

    1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1x5hjatF:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7h

Score
7/10

Malware Config

Signatures

  • 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).

  • 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.

  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-11-20_d71869270b9a966c67faa68a7e5558e3_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-11-20_d71869270b9a966c67faa68a7e5558e3_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2128
    • C:\Users\Admin\AppData\Local\Temp\hurok.exe
      "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of UnmapMainImage
      PID:2692

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    49KB

    MD5

    f4bd5b92f2b4bfd407c0140684314733

    SHA1

    4e1f87b6d9729f29655cab199a106c706179ce0d

    SHA256

    fd17a5c3152d28843f7a488a258a0687b1ab9b8d8d9ac90668ca0124da7d031e

    SHA512

    ee1815e2e724aeea1cb079c1d94dc21534ec2e80cfb5be5d6c15108287a713182855947cd3dbfd35c0c8407d44e60cc5e622347c928814ea922a49e93bc49ebb

  • memory/2128-8-0x00000000003B0000-0x00000000003B6000-memory.dmp

    Filesize

    24KB

  • memory/2128-1-0x0000000000400000-0x0000000000406000-memory.dmp

    Filesize

    24KB

  • memory/2128-0-0x00000000003B0000-0x00000000003B6000-memory.dmp

    Filesize

    24KB

  • memory/2692-16-0x0000000000230000-0x0000000000236000-memory.dmp

    Filesize

    24KB