The CDF documents themselves contain malicious macros, which are presumed to download a remote executable, according to MailGuard.
So far this year, Scamwatch has registered a total of $555,000 loss to phishing scams. More than 18,000 reports of these scams were received with 32 per cent of those having been delivered via email.
The Australian Competition and Consumer Commission body has also reported more than 4,000 hacking scams with people and businesses losing more than $1.3 million in 2017 so far.
However most of those reported scams happened over the phone, 24 per cent were via email and the internet.
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