I have not seen that elsewhere, only this from Haaretz July 22. I cannot get the full article.
Who Is Behind the Qatar Documents Affair, Selling 'Evidence' Against Netanyahu for 200K Euros?
Behind the sensational publications that allegedly attest to funds Qatar lavished upon Netanyahu, lies a network that sells dubious documents for tens of thousands of dollars per page.
The name Marc Eichinger came to my attention last summer. A few weeks before the war in Gaza broke, a source I met in a cafe in Tel Aviv told me about a French citizen who claimed to possess a tranche of Qatari documents linking the Israeli prime minister to a possible bribe and who was willing to help acquire more information.