File size intentionally made bigger

I saw one malware (as below) that is bigger than others.

It may be made protecting upload to virustotal.com.
To protect upload to virustotal.com, file size be made bigger 32MB. Because virustotal.com can upload a file under 32MB at a time.

You can simply search these files by Windows Search Filter in Windows 7. For example, “ext:(exe OR dll) AND size:>32MB” (ref: Using Advanced Query Syntax Programmatically)