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Analysis

  • max time kernel
    150s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    18/10/2024, 04:09

General

  • Target

    2024-10-18_da2c87ace7474ef6135c6b05f7fae314_cryptolocker.exe

  • Size

    45KB

  • MD5

    da2c87ace7474ef6135c6b05f7fae314

  • SHA1

    ac77f802d642eb114ba54e5ed2299ccbc157e4e8

  • SHA256

    623179e0a5767efd10ccaff9f4c5bf9b7d9505f724a3ecc203aba603f8278f2e

  • SHA512

    28782442eb855c6b0b4a584de2309bf15d4370a8d0e91a62fc8ac71b741552bcbf80a5042866dcc5eba90073de2d45f3c64476c4a7f683ffb271a2f23facb2e4

  • SSDEEP

    384:bm74uGLLQRcsdeQ72ngEr4K7YmE8jb0nrlwfjDUknq6:bm74zYcgT/EkM0ryfjdnq6

Score
7/10

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 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 WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-10-18_da2c87ace7474ef6135c6b05f7fae314_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-18_da2c87ace7474ef6135c6b05f7fae314_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4228
    • C:\Users\Admin\AppData\Local\Temp\hasfj.exe
      "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:2320

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    45KB

    MD5

    d17179d8dd4311fcad2f4b2febac6857

    SHA1

    87fe00454902094dee174c42e609bdf21606d5f6

    SHA256

    a697d82517e8bca157f567125f0e952e2c6f4701890ff94f054fa11e5004f05a

    SHA512

    4f20ebf5fc91a62a609406243002b851ddf97b548941df8be1af59c422aa66fb8b0122b8c08711d937516260d64d1f064d5b99a8d9459d5234d8478cee4edbda

  • memory/2320-19-0x0000000003010000-0x0000000003016000-memory.dmp

    Filesize

    24KB

  • memory/2320-25-0x0000000002D60000-0x0000000002D66000-memory.dmp

    Filesize

    24KB

  • memory/2320-26-0x0000000008000000-0x000000000800D000-memory.dmp

    Filesize

    52KB

  • memory/4228-0-0x0000000008000000-0x000000000800D000-memory.dmp

    Filesize

    52KB

  • memory/4228-1-0x0000000002210000-0x0000000002216000-memory.dmp

    Filesize

    24KB

  • memory/4228-2-0x0000000002210000-0x0000000002216000-memory.dmp

    Filesize

    24KB

  • memory/4228-3-0x0000000003150000-0x0000000003156000-memory.dmp

    Filesize

    24KB

  • memory/4228-17-0x0000000008000000-0x000000000800D000-memory.dmp

    Filesize

    52KB