A spamming campaign has been detected that is piggybacking on the popularity of Greta Thunberg and is using the climate change activist’s name to trick individuals into installing the Emotet Banking Trojan.
Emotet is one of the most active malware threats. Emotet was first detected in 2014 and was initially used to steal online banking credentials from Windows users by intercepting internet traffic. Over the years it has undergone several updates to add new functionality. It has had a malspam module added, which allows it to send copies of itself via email to a user’s contacts. Emotet also includes a malware downloader, allowing it to download a range of other malware variants such as other banking Trojans and ransomware.
The malware is used indiscriminately in attacks on individuals, businesses, and government agencies, with the latter two being the main targets. Emotet is primarily spread via spam email, and while exploits are not used to spread to other devices on the network – EternalBlue for instance – other malware variants downloaded by Emotet can. TrickBot for instance.
The Greta Thunberg spam campaign aims to get users to open a malicious Word attachment and enable content. If that happens, Emotet will be silently downloaded to the user’s device, sensitive banking information will be stolen, and further malware may be downloaded.
The campaign was active over the holiday period and used a variety of Christmas-themed lures to entice users into opening the email attachment. Some of the emails did not include an attachment and instead used a hyperlink to direct the user to a website where the malicious document could be downloaded.
One of the emails wished the recipient a Merry Christmas and urged them to consider the environment this Christmastime and join a demonstration in protest against the lack of action by governments to tackle the climate crisis. The email claimed details about the time and location of the protest were included in the Word document. The email also requested the recipient to send the email on to all their colleagues, friends, and relatives immediately to get their support as well. Several variations along that theme have been detected.
To increase the likelihood of the recipient enabling content, when opened the document displays a warning that appears to have been generated by Microsoft Office. The user is told that the document was created in OpenOffice and it is necessary to first enable editing first and then enable content. Doing the latter will enable macros which will start the infection process.
The emails are well written and have been crafted to get an emotional response, which increases the likelihood of the user taking the requested action. The emails have been sent in multiple languages in many different countries.
Whenever there is a major news event, popular sports tournament, or other event that attracts global interest, there will be cybercriminals taking advantage. Regardless of the theme of any email, if it is unsolicited and asks you to click a link or open an email attachment, it is best to assume that it is malicious.
Businesses can protect their networks against threats such as these by implementing an advanced spam filtering solution such as SpamTitan. SpamTitan will identify threats such as phishing attacks and will prevent the messages from reaching inboxes. SpamTitan also includes dual anti-virus engines to detect known malware and machine learning techniques and sandboxing to identify and block zero-day malware.
For further information on how SpamTitan can protect your business from email threats such as this, contact TitanHQ today.