Analysis

  • max time kernel
    148s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    12-02-2024 17:56

General

  • Target

    2024-02-12_f24e2be2c5680bcbb7684e94500fef89_cryptolocker.exe

  • Size

    37KB

  • MD5

    f24e2be2c5680bcbb7684e94500fef89

  • SHA1

    a14b765d29ef4b6908726058f6a9995c72a8f6f6

  • SHA256

    6aede6a6fba8ad489ad3ab8032dc497b2ba490064bf6c9aa4508f9499981214b

  • SHA512

    0fdf114820b69b49d8d63232e324b192707d563988810e4fc91ec8f2f896926fb30d0f400da333bdc2767a488412b0d3c5236968557bf977ea924240866c8a9a

  • SSDEEP

    768:bxNQIE0eBhkL2Fo1CCwgfjOg1tsJ6zeen7JEgx3s:bxNrC7kYo1Fxf3s06gm

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\2024-02-12_f24e2be2c5680bcbb7684e94500fef89_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-02-12_f24e2be2c5680bcbb7684e94500fef89_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:1720
    • C:\Users\Admin\AppData\Local\Temp\pissa.exe
      "C:\Users\Admin\AppData\Local\Temp\pissa.exe"
      2⤵
      • Executes dropped EXE
      PID:2452

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    37KB

    MD5

    3040ab31edd563aa4e1ca8b0d8bec106

    SHA1

    4858518d9ad7ef8f1b663e8cdcbe408d95cded49

    SHA256

    1625760561714eae89c0aa3d6ed7453e173f442eb3018f8f1c4836d1d3d47cc8

    SHA512

    8ca2b704d2e69aba74377722806ac12bf982780bf3435b0cbd966533d3e29fd297dc418f902c4f43ddd35798a54003baec79416493e03487c0d1909e94d8c0c6

  • memory/1720-0-0x0000000000270000-0x0000000000276000-memory.dmp

    Filesize

    24KB

  • memory/1720-1-0x0000000000320000-0x0000000000326000-memory.dmp

    Filesize

    24KB

  • memory/1720-5-0x0000000000270000-0x0000000000276000-memory.dmp

    Filesize

    24KB

  • memory/2452-15-0x00000000004B0000-0x00000000004B6000-memory.dmp

    Filesize

    24KB

  • memory/2452-17-0x0000000000450000-0x0000000000456000-memory.dmp

    Filesize

    24KB