This form can be used to submit a malware, ransomware, or infection sample to BleepingComputer.com for analysis. When submitting a file requested by one of our helpers, please leave a link to the topic where you were asked to submit the file. All submitted files will be shared with antivirus vendors for inclusion in their virus definitions and security researchers/malware removal experts at Bleeping.com. If you are not logged into the site as a registered member, please provide contact information for us to get back to you.
Source: https://www.bleepingcomputer.com/submit-malware.php

