Solution:
Try to take a look to DOMNodeInserted.
In this way you can write something like:
// as soon as a new anchor tag is added to the dom and
// the href value of this element is......
$(document).on('DOMNodeInserted', 'a[href="http://gambit.co/test/wp-content/uploads/2016/07/600_wynajem.jpg"]', function(e) {
this.href = 'http://www.google.com/';
this.textContent = 'http://www.google.com/';
});
$(function () {
$('#btn').on('click', function(e) {
$('body').append('<a href="http://gambit.co/test/wp-content/uploads/2016/07/600_wynajem.jpg">My sample</a>');
})
});
<script src="https://code.jquery.com/jquery-1.12.1.min.js"></script>
<button id="btn">Add link</button>