Analysis

  • max time kernel
    150s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/06/2024, 21:37

General

  • Target

    2024-06-06_d96edcbfe6c68fefb078b97efb388876_cryptolocker.exe

  • Size

    33KB

  • MD5

    d96edcbfe6c68fefb078b97efb388876

  • SHA1

    c23802afb3ec2371e11ea71af9249f32f855e11a

  • SHA256

    9b1c41d6033da0c8d0c54eeb81a85d407ffa1c75460d50ea57d39b6754049cab

  • SHA512

    f94311f80015a1e66f129273deee683b2757dc3e3e3dc668e6156a5410c9c2b2afbfeed2991d3e5b5beb6a2840bc3782eae41430ae50f3fc9aeafc49d0167707

  • SSDEEP

    384:bG74uGLLQRcsdeQ72ngEr4K7YmE8j60nrlwfjDUGTGXvxC:bG74zYcgT/Ekd0ryfjkQ

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 5 IoCs
  • 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).

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-06-06_d96edcbfe6c68fefb078b97efb388876_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-06_d96edcbfe6c68fefb078b97efb388876_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4940
    • C:\Users\Admin\AppData\Local\Temp\hasfj.exe
      "C:\Users\Admin\AppData\Local\Temp\hasfj.exe"
      2⤵
      • Executes dropped EXE
      PID:1112

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

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

          Filesize

          33KB

          MD5

          f7436186c2049f49faac04a2b6c63e26

          SHA1

          c4afb680357e579ba7172331f3a692056132b812

          SHA256

          67c592e441323b9ebba8d74310ee5aba4c2f4e090b067d839b726684eaff41da

          SHA512

          c4ee5f8f310f56f884a4b065036309020148645969ac6570d0cd07319e1ff81575cc6802efc5a59d367cb099d0b80d373619526ec77e6d00579468f81e2acc45

        • memory/1112-17-0x0000000008000000-0x000000000800A000-memory.dmp

          Filesize

          40KB

        • memory/1112-20-0x0000000003010000-0x0000000003016000-memory.dmp

          Filesize

          24KB

        • memory/1112-26-0x0000000002110000-0x0000000002116000-memory.dmp

          Filesize

          24KB

        • memory/1112-27-0x0000000008000000-0x000000000800A000-memory.dmp

          Filesize

          40KB

        • memory/4940-0-0x0000000008000000-0x000000000800A000-memory.dmp

          Filesize

          40KB

        • memory/4940-1-0x0000000002120000-0x0000000002126000-memory.dmp

          Filesize

          24KB

        • memory/4940-2-0x0000000003150000-0x0000000003156000-memory.dmp

          Filesize

          24KB

        • memory/4940-9-0x0000000002120000-0x0000000002126000-memory.dmp

          Filesize

          24KB

        • memory/4940-18-0x0000000008000000-0x000000000800A000-memory.dmp

          Filesize

          40KB