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Analysis

  • max time kernel
    118s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    31/05/2024, 20:54

General

  • Target

    2024-05-31_dcca372632b971aa18ab6086f57f12c1_cryptolocker.exe

  • Size

    63KB

  • MD5

    dcca372632b971aa18ab6086f57f12c1

  • SHA1

    e9a75dd10328322b30eb0894ced189c23c750f9c

  • SHA256

    c4bf1f3e07b7a88b828b2a5e6dc2607df81426814698c3fd1b8578ae06ec90ad

  • SHA512

    4574100e39f2c5b5b80f8a19b1a99ebe664e43b0a7926af13887669e82fdf019e2d54030cddec560ebb2a4aeb03a61dc5b2bfcafbec51c9f0851b6cd0ea34334

  • SSDEEP

    1536:btB9g/xtCSKfxLIc//Xr+/AO/kIZ3ft2nVuTKB6nggOlHdUHZnx9:btng54SMLr+/AO/kIhfoKMHdaL

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\2024-05-31_dcca372632b971aa18ab6086f57f12c1_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-05-31_dcca372632b971aa18ab6086f57f12c1_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2580
    • C:\Users\Admin\AppData\Local\Temp\gewos.exe
      "C:\Users\Admin\AppData\Local\Temp\gewos.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of UnmapMainImage
      PID:1272

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    63KB

    MD5

    5f9b896c72bffaf037e0201d2f6399bf

    SHA1

    b04d50b06b02b8d89807e9b809299a993299131e

    SHA256

    80148aae380ad888ba992ab311400b44627dd65abe7a8ed71458282595bdd1f3

    SHA512

    74dfb1878157ec453c0eefd0c5798c14f2ab9fb5454b0fb8353924254864bf00e784fa11a88c2ccd15da2f5857d9bfd0ea25b90562621053db73a5bc954e1745

  • memory/1272-23-0x0000000000340000-0x0000000000346000-memory.dmp

    Filesize

    24KB

  • memory/2580-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/2580-8-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/2580-1-0x0000000000400000-0x0000000000406000-memory.dmp

    Filesize

    24KB