What type of hash does WordPress use?

$hash_type$salt$password

If the hash does not use a salt, then there is no $ sign for that. The actual hash in your case is after the 2nd $

The reason for this is, so you can have many types of hashes with different salts and feeds that string into a function that knows how to match it with some other value.

MD5 worked for me changing my database manually. See: Resetting Your Password

It depends at least on the version of PHP that is used. wp-includes/class-phpass.php contains all the answers.

Start phpMyAdmin and access wp_users from your wordpress instance. Edit record and select user_pass function to match MD5. Write the string that will be your new password in VALUE. Click, GO. Go to your wordpress website and enter your new password. Back to phpMyAdmin you will see that WP changed the HASH to something like $P$B... enjoy!