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Analysis

  • max time kernel
    148s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    22/02/2024, 05:29

General

  • Target

    2024-02-22_c91af47ec876293a917223c696c0c0a9_cryptolocker.exe

  • Size

    38KB

  • MD5

    c91af47ec876293a917223c696c0c0a9

  • SHA1

    d84749d970ff4921e01610bf6e254154a7ddba1c

  • SHA256

    d19cdfe515dc6baad319a245e9c559254e37e387d4c596ed44963a324afabbf4

  • SHA512

    9b9551f0d84a6a9ad6dea7da29fcd869d8ad1b4dd515d2ea66533f045b6ffe2bc1c1ab2a47453a7344de2352ac92d354ae170cd69d34bddc2b1d97a926f6c979

  • SSDEEP

    384:bgX4uGLLQRcsdeQ7/nQu63Ag7YmecFanrlwfjDUkKDfWf0w3sp8u5cZnfXsT7:bgX4zYcgTEu6QOaryfjqDDw3sCu5mXq7

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 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 WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-02-22_c91af47ec876293a917223c696c0c0a9_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-22_c91af47ec876293a917223c696c0c0a9_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2340
    • C:\Users\Admin\AppData\Local\Temp\hasfj.exe
      "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
      2⤵
      • Executes dropped EXE
      PID:3012

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    38KB

    MD5

    a1ed82e0add90ef1bf87d6c1c93e3bc3

    SHA1

    4b7d5c535299e4555a1c10684f760ee2b5e48424

    SHA256

    326bac7c2abf95594abc25166d95b818c755124802e8b0a3371da377520cefc7

    SHA512

    34a116e39229809a068de859c9f0459bb21554290cc93a87781ade4c1bff14cc060b8c28d70cb0f57a0f4b5d31b1beec17c342ba7e7c6ccdfbfc8f6e4fbfd295

  • memory/2340-0-0x0000000000270000-0x0000000000276000-memory.dmp

    Filesize

    24KB

  • memory/2340-1-0x0000000000290000-0x0000000000296000-memory.dmp

    Filesize

    24KB

  • memory/2340-3-0x0000000000270000-0x0000000000276000-memory.dmp

    Filesize

    24KB

  • memory/3012-15-0x0000000001CA0000-0x0000000001CA6000-memory.dmp

    Filesize

    24KB

  • memory/3012-22-0x0000000001C80000-0x0000000001C86000-memory.dmp

    Filesize

    24KB