Security researchers tracked activities of a new group of financially-motivated hackers. So, the hackers target a few companies and organizations in Germany, Italy, and the United States. And they try to infect them with backdoor, banking Trojan, or ransomware malware.
The attackers are more interested in manufacturing, healthcare industries and IT services that store critical data. Because they count on the fact that people who have their data here can afford high ransom payouts.
Hackers pretend to represent government entities asking for taxes or refunds, according to a ProofPoint report. And they usually send out low-volume emails. Also, researchers mention that: “Tax-themed Email Campaigns Target 2019 Filers, finance-related lures have been used seasonally with upticks in tax-related malware and phishing campaigns leading up to the annual tax filing deadlines in different geographies.”
A DOC file compromises computers
The hackers use a malicious Word document attached as the first step to compromise devices. When users open the document, it executes a script to run PowerShell commands. Then, they download and install ransomware, a Trojan or a backdoor.
The specialists explain that “Opening the Microsoft Word Document and enabling macros installs Maze ransomware on the user’s system, encrypting all of their files, and saves a ransom note resembling the following in TXT format in every directory.”
Christopher Dawson, Threat Intelligence Lead at Proofpoint, told The Hacker News that “Although these campaigns are small in volume, currently, they are significant for their abuse of trusted brands, including government agencies, and for their relatively rapid expansion across multiple geographies.”
use lookalike domains, excessive technical writing and stolen branding, to be more convincing:
Bundeszentralamt fur Steuern, the German Federal Ministry of Finance,
Agenzia Delle Entrate, the Italian Revenue Agency,
1&1 Internet AG, a German internet service provider,
USPS, the United States Postal Service.
The minimum protection against cybercriminals
Although they use well-known tools and techniques, these still work very well and let criminals gain access to organizations.
The basic online security steps would be:
disable macros from running in office files,
keep a regular backup of the important data
run one of the best antivirus software
never open email attachments from unknown/untrusted sources.
Avoid clicking the links from unknown sources.