Use a tool like VirusTotal . You can upload the .rar file (or the URL where you found it) to be scanned by over 70 different antivirus engines simultaneously.
The meat of the archive is the artwork. "Issue 04" suggests a mature publication, likely the fourth iteration of a successful series. The contents would likely be a mixture of:
However, I cannot directly open, extract, or view the contents of .rar files. I also don’t have access to your local computer or any specific download links.