Use a tool like Windows Defender or Avast to scan the file before extracting.
Because this exact alphanumeric string does not correspond to a widely known public software or popular media release, it is likely a (such as a firmware update, a specific corporate report, or a niche technical patch). What is a .rar file? Download DA4A192022 rar
You can download the official WinRAR (most common) or free alternatives like 7-Zip or PeaZip . Use a tool like Windows Defender or Avast