yes it does look like an upthrust no doubt,
but there has been some signs of strength behind it, and it was on reduced volume, right at that previous resistance level.
Remember, an upthrust is a confirming indicator of previous weakness (unless it is on very high volume itself),
so let's wait and see if it responds like an upthrust, as there is a good chance it is "an upthrust in the wrong place" or as I call them 'absorption bars'.
The expected response from an upthrust is for lower prices, and any upbars will be on no demand, or 'trap type bars' (bearish reversals etc).
I won't be surprised to see an upbar in response......or even the test you are looking for.........
