In this case, the phishing mail leads the user to believe that there is a shared document. By clicking on the link “Ouvrir” the user is presented a fake Microsoft OneNote page, showing a link to a fake invoice (View | Download File).
After clicking on the fake link, they are redirected to a fake generic login form collecting email credentials.
If you are uncertain about the authenticity of an email, do not hesitate to contact the entity that seems to have sent you the email using a safe communication manner, using the phone for example (no phone number from the untrusted email must be used in order to verify the authenticity).
If you are working for the Luxembourgish government or are using any of the GOVCERT.LU services, it is important to forward phishing emails to us (using Reporting an incident or the Outlook button). This will allow us to take down phishing websites and protect members of our constituency.