The generator matrix

 1  1  1  1  2  0  2  2  1
 0  2  0  2  4  4  2  2  0
 0  0  2  2  2  2  6  6  0
 0  0  0  4  0  4  4  0  0

generates a code of length 9 over Z8 who´s minimum homogenous weight is 6.

Homogenous weight enumerator: w(x)=1x^0+23x^6+24x^7+75x^8+20x^9+68x^10+16x^11+20x^12+4x^13+5x^14

The gray image is a code over GF(2) with n=36, k=8 and d=12.
This code was found by Heurico 1.16 in 0.000459 seconds.