How can Norman say this is clean?

NORMAN analysis

USB_pass_stealer.rar file is just an error text file not the one intended for. Probably produced while downloading USB_pass_stealer.rar. This may occur if file not available on source while downloading.

Sophos analysis

thank you for your email. The file USB_pass_stealer.rar that you sent to us for analysis is just an ASCII file advising a download limit has been reached. Please do not hesitate to contact me if I can be of any further assistance.