The URL http://%5C%5CCUBED-NAS%5CCubed%5CCooks%20River%20Sustainability%20Initiative%5CPull%20Up%20Banner%5CExported%5CCRSI-PullUpBanner-R7-Screen.pdf contains characters that are not valid in the location they are found.
The reason for their presence may be a mistyped URL, but the URL may also be an attempt to trick you into visiting a web site which you might mistake for a site you trust.