WordPress pulls it’s footer data from “footer.php” located in your theme’s directory. wp-content/themes/themNameHere/footer.php
Unfortunately you’ll need a little HTML knowledge or maybe CSS depending on the request of course. But once you figure out where you want it you’ll need to use HTML and/or CSS to put it in it’s proper position within the footer.php
Keep in mind though, images are relative to the site’s root.