exchange.shikbraves.org doesn’t appear to have any malware on it.

http://wepawet.iseclab.org/view.php?hash=8ee6e1fdc78197aa4fae3c9ea3078e65&t=1407173340&type=js

https://www.virustotal.com/en/url/7cb1f05b4d9913fa9d03cb90cbbe5495ffc98c440ffea162cd097333ede84bff/analysis/1407174038/

I also took a look at the source itself and didn’t see anything that would indicate that there’s malware on the page.

exchange.shikbraves.org doesn't appear to have any malware on it.
avast does not say there is ....... URL:Mal means URL or IP is blacklisted for whatever reason, there can be many, it does not have to be infected

virustotal does not scan the site for malware, it check URL aginst blacklists

killmalware and Sucuri say clean, and IP seems not Blacklisted

You can upload files and report issues to avast here : http://www.avast.com/contact-form.php (select subject according to Your case)
you may give a link to your topic

Didn’t know about killmalware until now. Thanks!

use link above and report it

Submitted. Thanks.