Analysis

  • max time kernel
    150s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25/08/2024, 07:04

General

  • Target

    2024-08-25_e69aab1ac7b3fbc5f284b646c1ffbab8_cryptolocker.exe

  • Size

    43KB

  • MD5

    e69aab1ac7b3fbc5f284b646c1ffbab8

  • SHA1

    999847b788018ae084d77efbcb3af2eebb2842ba

  • SHA256

    a271790dcfcaed3d78124ca874c61fbf2b9a729f701199be1dbeab514cdfe2d4

  • SHA512

    51c670595f13bac3f085504cb4c47103461d1e470bcf3c416d6c345bbc945ead9a2e2b685884a6cb0e96f7e8ee0aef5ab40d434c60efadff1dad67dbbe539c57

  • SSDEEP

    768:bCDOw9UiaKHfjnD0S16avdrQFiLjJvtAd3hj:bCDOw9aMDooc+vA3

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\2024-08-25_e69aab1ac7b3fbc5f284b646c1ffbab8_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-08-25_e69aab1ac7b3fbc5f284b646c1ffbab8_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4180
    • C:\Users\Admin\AppData\Local\Temp\lossy.exe
      "C:\Users\Admin\AppData\Local\Temp\lossy.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:4532

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          43KB

          MD5

          c79c804c9180629bf5cef032dda5b526

          SHA1

          c717c7bcd2c62e78e7f8cb098754e2bfafc54731

          SHA256

          e25a28cef60f5184b3ba4c64cf159bef876f4f7313b8a1c9cc2bfbe942928d31

          SHA512

          442bf2266773a6cec8d4ea460c276c115e98dc761aa6283d87cccd0858cbe3e2189ef3ca6d925ab9186356b625d8d84aaa52538e9de5d09678f155212972c211

        • memory/4180-0-0x0000000008000000-0x000000000800A000-memory.dmp

          Filesize

          40KB

        • memory/4180-1-0x0000000002180000-0x0000000002186000-memory.dmp

          Filesize

          24KB

        • memory/4180-2-0x0000000002180000-0x0000000002186000-memory.dmp

          Filesize

          24KB

        • memory/4180-3-0x00000000021A0000-0x00000000021A6000-memory.dmp

          Filesize

          24KB

        • memory/4180-17-0x0000000008000000-0x000000000800A000-memory.dmp

          Filesize

          40KB

        • memory/4532-25-0x0000000001FC0000-0x0000000001FC6000-memory.dmp

          Filesize

          24KB

        • memory/4532-19-0x0000000001FE0000-0x0000000001FE6000-memory.dmp

          Filesize

          24KB

        • memory/4532-26-0x0000000008000000-0x000000000800A000-memory.dmp

          Filesize

          40KB