The image shows a girl doing a gymnastic exercise leaning on the floor and balancing almost impossibly on the remains of one of the walls destroyed by bombing.
The graffiti was initially shared through the anonymous artist's Instagram social network account, which, according to the Ukrainian portal, verifies its authenticity as this is Banksy's usual way of disseminating his works.
The British artist has also painted graffiti in other territories in conflict, such as the West Bank, as a way of expressing his solidarity with the Palestinian people.
Ukrinform recalls that a recent auction in London of graffiti by the artist in support of a Ukrainian children's hospital raised 81,000 pounds (about 93,000 euros).