Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20241023-en
  • resource tags

    arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
  • submitted
    31-10-2024 08:26

General

  • Target

    2024-10-31_5dea77fa216caf20da8d5d2b25ac6439_cryptolocker.exe

  • Size

    37KB

  • MD5

    5dea77fa216caf20da8d5d2b25ac6439

  • SHA1

    2cceb9eefdf032c45f0a049798ec93f6f22d597a

  • SHA256

    c32f66a6228053c78924bf26e9d656108600aefd7cd27bce259611cfda5fcce6

  • SHA512

    98bef4d4452ace7b1658bdc7f3254fe32ea7d9892d2e804166abd119725121372d5f1a0c9687eed4b9c34504bd5b7b9bbf0cc746ea7ebf8575ac3371fe8ff5f4

  • SSDEEP

    768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGp/YIm7wm0Ug:o1KhxqwtdgI2MyzNORQtOflIwoHNV2XD

Score
7/10

Malware Config

Signatures

  • 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).

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-10-31_5dea77fa216caf20da8d5d2b25ac6439_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-31_5dea77fa216caf20da8d5d2b25ac6439_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:2144
    • C:\Users\Admin\AppData\Local\Temp\hurok.exe
      "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of UnmapMainImage
      PID:1428

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    38KB

    MD5

    4bf14115f692b6d5556b3cf2fcd76c51

    SHA1

    1f5cfc68c7c976bc94e5847e0d2f5015f9ffe3fe

    SHA256

    7dcf37ea182060c992340d798ed445cb9593c755ca01eb3bb9d0df4b4657e8a4

    SHA512

    241f56fb14d983a8986dbb9ddf2025a327c4171464f77e5f8feeae8dd9e7065893545fa0ea26816bacf7169df2882a599903bf89884d26417cf4a050ef42ddda

  • memory/1428-23-0x0000000000230000-0x0000000000236000-memory.dmp

    Filesize

    24KB

  • memory/2144-0-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB

  • memory/2144-1-0x0000000000400000-0x0000000000406000-memory.dmp

    Filesize

    24KB

  • memory/2144-8-0x00000000002C0000-0x00000000002C6000-memory.dmp

    Filesize

    24KB