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Analysis

  • max time kernel
    148s
  • 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
    03/06/2024, 07:37

General

  • Target

    2024-06-03_7cd36f03d5d6243541629bc6d70a179a_cryptolocker.exe

  • Size

    46KB

  • MD5

    7cd36f03d5d6243541629bc6d70a179a

  • SHA1

    2b5df527a75e885eaef46f1a0efa2fc3da228037

  • SHA256

    7bbe95364f9e0cde34aa43a22f8bd74983bda83c58dd375c974fe43b7eb9ed4d

  • SHA512

    3ab5ccc04f9f85b935db8983189a858609bfafc41227242c153b5b7d1d648d56718764dd3d900e8d92984b387ee04e7322edb96f2a1b3322eabf5764e6bb2ece

  • SSDEEP

    768:V6LsoEEeegiZPvEhHSG+gDYQtOOtEvwDpj/MLam5aFr7YOzzfm0EXsi7:V6QFElP6n+gMQMOtEvwDpjyaYaFAh397

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\2024-06-03_7cd36f03d5d6243541629bc6d70a179a_cryptolocker.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-06-03_7cd36f03d5d6243541629bc6d70a179a_cryptolocker.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3124
    • C:\Users\Admin\AppData\Local\Temp\asih.exe
      "C:\Users\Admin\AppData\Local\Temp\asih.exe"
      2⤵
      • Executes dropped EXE
      PID:4672
  • 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=3980,i,13281073920029625837,8253721632651544158,262144 --variations-seed-version --mojo-platform-channel-handle=4488 /prefetch:8
    1⤵
      PID:3140

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      47KB

      MD5

      38fd2b9ac207ecc9699dc49c1306abdf

      SHA1

      e1506b4a0838122e54e90ad5c94b32e05b040e0a

      SHA256

      b43ebf788a89eacc20016d6a289e528fbc3b7bd0813fb73d99942676b22989e7

      SHA512

      e0467eaf158b0698489eba5fa8b9c68453a7b332d8476a823f52952db0df0304d110da50c9ed957e609e20c4ab1408974d0e727e3d0033bab7012d9bf71abae0

    • memory/3124-0-0x0000000000660000-0x0000000000666000-memory.dmp

      Filesize

      24KB

    • memory/3124-1-0x00000000007D0000-0x00000000007D6000-memory.dmp

      Filesize

      24KB

    • memory/3124-8-0x0000000000660000-0x0000000000666000-memory.dmp

      Filesize

      24KB

    • memory/4672-17-0x0000000001F70000-0x0000000001F76000-memory.dmp

      Filesize

      24KB

    • memory/4672-23-0x0000000001F50000-0x0000000001F56000-memory.dmp

      Filesize

      24KB