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Analysis

  • max time kernel
    150s
  • max time network
    154s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    16/04/2024, 05:12

General

  • Target

    2024-04-16_c12ac62c4900b91271a374254574f1c5_cryptolocker.exe

  • Size

    42KB

  • MD5

    c12ac62c4900b91271a374254574f1c5

  • SHA1

    b488b14a5974da475e251d4368f75ba3db79be2f

  • SHA256

    f2d88ca19f612ca4d1650d68b670d9859ef9ea142493505c09e5a7a296f1eab0

  • SHA512

    a704a292ee9d44df2f241a06c0501e930fd5179b7079389a53eaf4648b947569f030735b08ae73e0260a69af332e920e7d18c1c866405507b97c449928d4c27e

  • SSDEEP

    768:b7o/2n1TCraU6GD1a4X0WcO+wMVm+slAMphqO:bc/y2lkF0+BeqO

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 UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-04-16_c12ac62c4900b91271a374254574f1c5_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-04-16_c12ac62c4900b91271a374254574f1c5_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2300
    • C:\Users\Admin\AppData\Local\Temp\rewok.exe
      "C:\Users\Admin\AppData\Local\Temp\rewok.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of UnmapMainImage
      PID:2620

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    43KB

    MD5

    3c902f0b24369d3fc59e6bbe782cd90c

    SHA1

    f78dcf555ae936b79eb685601dacad6ee0e5a97a

    SHA256

    604dcf2df41a8962b67f7af7ded6047dd350e3a761567cb7d5cf74f341bd4d2c

    SHA512

    66b5dbdcfe8a2d2a6b25b94d90f628825f4a927053255eb8cbcdcf7e31dd0ffac2c6e44d5a5b96562de12417d518eb72648abfdd79b6a6bdcf43f4ad393fe244

  • memory/2300-0-0x0000000000260000-0x0000000000266000-memory.dmp

    Filesize

    24KB

  • memory/2300-2-0x0000000000260000-0x0000000000266000-memory.dmp

    Filesize

    24KB

  • memory/2300-1-0x0000000000400000-0x0000000000406000-memory.dmp

    Filesize

    24KB

  • memory/2620-16-0x0000000000360000-0x0000000000366000-memory.dmp

    Filesize

    24KB