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Analysis

  • max time kernel
    0s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/06/2024, 08:43

General

  • Target

    2024-06-09_2b7de9acf7686bd15fc22cf14640857d_cryptolocker.exe

  • Size

    45KB

  • MD5

    2b7de9acf7686bd15fc22cf14640857d

  • SHA1

    8c9f52fa659cec181b93f6161eaf25634bb486ab

  • SHA256

    1b76f6c3aa3fdd64895cf7fe23f44df0949f7f4721acd564b726539d2c46b732

  • SHA512

    5d96fc72952a9f64c6cf6a9440c6a6ad82b72ec2eb6146c7f7bb3ca921ef16764c1393992b3f932387bbf5e5e0f1da0daefe60525ab2b6ca9db7a42c990143d1

  • SSDEEP

    768:X6LsoEEeegiZPvEhHSG+gp/QtOOtEvwDpjBVaD3TP7DFHuRcD9Hi:X6QFElP6n+gJQMOtEvwDpjBmzDkWDti

Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Detection of Cryptolocker Samples 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • 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\2024-06-09_2b7de9acf7686bd15fc22cf14640857d_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-09_2b7de9acf7686bd15fc22cf14640857d_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:2672
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
        PID:1572
    • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
      "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4356,i,5047420736443372512,9747851268033796534,262144 --variations-seed-version --mojo-platform-channel-handle=4404 /prefetch:8
      1⤵
        PID:4844

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

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

        Filesize

        45KB

        MD5

        ecc3cbcadfede2df90d8dd1ed2be97a8

        SHA1

        73f3dfb4578afd71e08c58dc2e28640057a6b91d

        SHA256

        f6b90b3a574f6193b2967cd25c5a11533dc4a97f00b19abb695f8d7ae6cd4dc6

        SHA512

        33e18c2baf4da1acc0e892f23c741764bdbbcf310cd754bc2425da83e6800232939d0a21582fc83a1ac241121e4b75b896bec5e315e62427b436e931f0fbdf26

      • memory/1572-23-0x0000000002050000-0x0000000002056000-memory.dmp

        Filesize

        24KB

      • memory/1572-17-0x0000000002070000-0x0000000002076000-memory.dmp

        Filesize

        24KB

      • memory/2672-8-0x00000000005A0000-0x00000000005A6000-memory.dmp

        Filesize

        24KB

      • memory/2672-1-0x00000000005D0000-0x00000000005D6000-memory.dmp

        Filesize

        24KB

      • memory/2672-0-0x00000000005A0000-0x00000000005A6000-memory.dmp

        Filesize

        24KB