Analysis

  • max time kernel
    118s
  • max time network
    153s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    04/06/2024, 01:32

General

  • Target

    2024-06-04_46283bf13ef351fe55de88722c9d301b_cryptolocker.exe

  • Size

    44KB

  • MD5

    46283bf13ef351fe55de88722c9d301b

  • SHA1

    572df98ea1a7e83fae9341ec8482924b29b8209d

  • SHA256

    810eb2467ca44b25454d4b70fbf3059f429f12053785ca4a49520f3d03bf1695

  • SHA512

    f6208666ea986d5b1256aa8a849630e29bd1023d41201fcd765728a0d438f7670c73a3a8f8f4da9cf0daedd3c18ce31e2fb300f669c00b221c2028d750cd7154

  • SSDEEP

    384:bm74uGLLQRcsdeQ72ngEr4K7YmE8jb0nrlwfjDUadQC8M:bm74zYcgT/EkM0ryfjPdQZM

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 4 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 WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-06-04_46283bf13ef351fe55de88722c9d301b_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-04_46283bf13ef351fe55de88722c9d301b_cryptolocker.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2876
    • C:\Users\Admin\AppData\Local\Temp\hasfj.exe
      "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
      2⤵
      • Executes dropped EXE
      PID:2880

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          45KB

          MD5

          086afce8cab3fe5c397cafd8b66112ac

          SHA1

          d94713132e1a700153e2bd47e45ec4c52837066a

          SHA256

          e72ff4c24df0d113f2c7acf7f73cae58c1134b0c7502cf75f37f6960585efedd

          SHA512

          72f61790191385bc372fea65efaa86959a3b69d417ef7909abceaa0dc2042bd249180b0e3fe23b80c8eef3b2b0108bdb3e9fae91aba81a33e3f07116ccadbd8c

        • memory/2876-0-0x0000000008000000-0x000000000800D000-memory.dmp

          Filesize

          52KB

        • memory/2876-1-0x00000000005F0000-0x00000000005F6000-memory.dmp

          Filesize

          24KB

        • memory/2876-3-0x0000000000610000-0x0000000000616000-memory.dmp

          Filesize

          24KB

        • memory/2876-2-0x00000000005F0000-0x00000000005F6000-memory.dmp

          Filesize

          24KB

        • memory/2876-16-0x0000000008000000-0x000000000800D000-memory.dmp

          Filesize

          52KB

        • memory/2876-14-0x0000000001FF0000-0x0000000001FFD000-memory.dmp

          Filesize

          52KB

        • memory/2880-18-0x00000000002A0000-0x00000000002A6000-memory.dmp

          Filesize

          24KB

        • memory/2880-25-0x0000000000200000-0x0000000000206000-memory.dmp

          Filesize

          24KB

        • memory/2880-26-0x0000000008000000-0x000000000800D000-memory.dmp

          Filesize

          52KB