AMMO by MIG Weathering Set. - Enamel Washes & Pigments for Modelling
Colors: Eastern Front Mud Set

From the Manufacturer:

This set allows us to apply the dark and damp mud typical of the Eastern Front in our vehicles. But, these products can be used to represent too dark mud elsewhere in the world.

A.MIG-1402 FRESH MUD
A.MIG-1405 DARK MUD
A.MIG-3007 DARK EARTH