Intel® boxed products are always new and any mark on the processor when the unit is boxed is a manufacturing sign.
When you got the processor was it in a seal boxed? Where did you purchase it?
The box was somehow a bit damaged.
I tried to remove the marks by using a soft cloth, but the scratches stayed.
What kind of manufacturing signs could those scratches be?
Could it be that this one had a cooling block attached to it?
Thanks for your support!
During the manufacturing process of processors, random units are tested to measure and confirm the quality and performance of the units. These marks on this processor are marks of this process and there is nothing to worry about it.
In the case that you bought a new processor but the box was not seal I recommend you contacting the place of purchase and confirm with them why the processor box was open.