<?php
    $excluded = array(1,35,37);
    $args = array(
        'post_type' => 'attachment',
        'numberposts' => '5',
        'category__not_in' => $excluded
    );
    $images = get_posts($args);
    if (!empty($images)) {
?>
    <div class="wrap">
        <h5><span>Recently</span> Added</h5>
        <ul>
            <?php
                foreach ($images as $image) {
                    $attachment_link = get_attachment_link( $image->ID );
                    echo "<li><a href='".$attachment_link."'>".wp_get_attachment_image($image->ID)."</a></li>";
                }
            ?>
        </ul>
    </div>
<?php } ?>