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Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    08/06/2024, 23:24

General

  • Target

    2024-06-08_24f6f3546f45447a614e32d1b72dd239_cryptolocker.exe

  • Size

    55KB

  • MD5

    24f6f3546f45447a614e32d1b72dd239

  • SHA1

    2c5695eaf1bc425f0bf702f73ec32e2e7195dc87

  • SHA256

    e7f5b9b582f9b330bcbadf060106d0d2289341f78a3237ec88f4be7eb8d2eaa6

  • SHA512

    39c598cff7dfd1bbf617760487f3f9683e9fd84684cf6c91ddc8c851c3f7cc1abe0cec14943857bd67d8a023e573cf58ca4ded9df36b7fbcd60cd303f58f5bc9

  • SSDEEP

    1536:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZszsbKY1xzpAIX6EX:aq7tdgI2MyzNORQtOflIwoHNV2XBFV7C

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\2024-06-08_24f6f3546f45447a614e32d1b72dd239_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-08_24f6f3546f45447a614e32d1b72dd239_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2320
    • 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:1228

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    55KB

    MD5

    46a18081ead666da915bd47286a3f394

    SHA1

    47e4e1a6f09bbfc89defb460b3a891715d782abc

    SHA256

    a53ce701b1678d91d247b98466d719208faabcc4c63bf601c7fc8b723183b1d0

    SHA512

    187b29413fa4186d2fef11cb12e547335b7c052a94fb55b3b3d23551a95a8d62fe3a4258af84bad6d9756ee9d47806b00bbfc02aa728a851465eee4f5b8cbc1e

  • memory/1228-23-0x00000000002B0000-0x00000000002B6000-memory.dmp

    Filesize

    24KB

  • memory/2320-0-0x00000000001C0000-0x00000000001C6000-memory.dmp

    Filesize

    24KB

  • memory/2320-8-0x00000000001C0000-0x00000000001C6000-memory.dmp

    Filesize

    24KB

  • memory/2320-1-0x0000000000400000-0x0000000000406000-memory.dmp

    Filesize

    24KB