Thanks junsu and I have got a copy of MyDoom now.

Its MD5 is: 39A7D2BB 5652C9D1 05C0D64A 640C5A9D [UPX unpacked]

Unfortunatelly he said it’s not valuable to research it because a previous analyze done by his colleague indicates that this is not a “skilled” worm.

I’ll keep this for some time. For security reasons I have denied my own execute privilege of that file.