Researched extensively and compared not only it's image but it's growing habits, blooming patterns, and so on. This is in my yard so I've had plenty of experience observing it.

Looks like a cluster flowered rose.
Form of petals and bud fit better to multiflora type.
styles are unfortunatelly not clearly visible but also seem to be synstylae type.

Looks to be something from section Synstylae, instead.