A DDoS attack is hardly a ‘complex’ attack against Russia and is easily mitigated against these days vs a malware wiper already spreading all over Ukraine. A DDoS is not even remotely considered a ‘hack’.
Anonymous is not exactly sophisticated like the ‘Equation Group’ and these sort of DDoS + shodan.io lookups are what script-kiddie jokers do. They have nothing to fight with compared to Russia.
Ukraine needs higher calibre cyber security teams to defend itself, not predictable script kiddie DDoSers.