Analysis

  • max time kernel
    150s
  • 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
    13-06-2024 03:31

General

  • Target

    2024-06-13_4568ba52fc5b80a78838340ba159a9a1_cryptolocker.exe

  • Size

    73KB

  • MD5

    4568ba52fc5b80a78838340ba159a9a1

  • SHA1

    b757e84736abfbd6a4ffe3878e47e5230767227b

  • SHA256

    4cdab9b47b6dbe7666f72b846dc067ad04e53688b9d0c144bab5d05f5cb0b5c3

  • SHA512

    54de3e88e3c02d4dd715acc3b996fb7c6cc4a4b6f752ff45ab33d1322d01e736ef9b46b6adb4ab1538c743fbde6d1d392a2eea49a847807c75710eeddc92367b

  • SSDEEP

    768:9UQz7yVEhs9+4T/1bytOOtEvwDpjLXOQ69zbjlAAX5e9zD:9Uj+AIMOtEvwDpjLizbR9XwzD

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.

  • 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\2024-06-13_4568ba52fc5b80a78838340ba159a9a1_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-13_4568ba52fc5b80a78838340ba159a9a1_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3096
    • C:\Users\Admin\AppData\Local\Temp\misid.exe
      "C:\Users\Admin\AppData\Local\Temp\misid.exe"
      2⤵
      • Executes dropped EXE
      PID:4408
  • 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=1304,i,2607710392823067546,4648797561512801463,262144 --variations-seed-version --mojo-platform-channel-handle=4456 /prefetch:8
    1⤵
      PID:4804

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      74KB

      MD5

      d3a87c075cb24a008aa0095906dcc306

      SHA1

      d3451b90efca1b2a91ac834352cd3064606f8c8e

      SHA256

      0cc35e17ddb65d239339961b2b5ed5ceb98875e498a15886587a2e22dfdde602

      SHA512

      48a18f4c8b7215c02f101bd89df529068f5f700c450e682ecfe29f6ebc111e2dc0e9d74efaa13141658c7598b785a48f0b414a9afe45288fa455bd323ab06d32

    • memory/3096-0-0x00000000006B0000-0x00000000006B6000-memory.dmp

      Filesize

      24KB

    • memory/3096-2-0x0000000002080000-0x0000000002086000-memory.dmp

      Filesize

      24KB

    • memory/3096-8-0x00000000006B0000-0x00000000006B6000-memory.dmp

      Filesize

      24KB

    • memory/4408-23-0x00000000006C0000-0x00000000006C6000-memory.dmp

      Filesize

      24KB