The US Cybersecurity and Infrastructure Security Agency (CISA) has published a Malware Analysis Report (MAR) that includes technical details about a new strain of malware, tracked as BLINDINGCAN, that was attributed to North Korea.
According to the government experts, the BLINDINGCAN malware was employed in attacks aimed at US and foreign companies operating in the military defense and aerospace sectors.
The attack chain is similar to the one used in past campaigns, threat actors pose as recruiters at big corporations to establish contact with employees at the target organizations. The attackers use job offerings from prominent defense and aerospace entities as bait to trick victims into opening weaponized Office or PDF documents that are used to deploy malware on the victim’s computers.
According to the CISA alert, the attackers used the above technique to deliver the BLINDINGCAN remote access trojan (RAT) (aka DRATzarus) and access the victim’s system for reconnaissance purpose.
“FBI has high confidence that HIDDEN COBRA actors are using malware variants in conjunction with proxy servers to maintain a presence on victim networks and to further network exploitation. A threat group with a nexus to North Korea targeted government contractors early this year to gather intelligence surrounding key military and energy technologies.” reads the CISA’s MAR report. “The malicious documents employed in this campaign used job postings from leading defense contractors as lures and installed a data gathering implant on a victim’s system.”
The BLINDINGCAN RAT implements the following built-in functions-:
The CISA MAR also indicators of compromise (IoCs), Yara rules, and other technical info that could be used by system administrators to discover compromise systems within their networks.
In April, the U.S. Departments of State, the Treasury, and Homeland Security, and the Federal Bureau of Investigation released a joint advisory that is warning organizations worldwide about the ‘significant cyber threat’ posed by the North Korean nation-state actors to the global banking and financial institutions.
The advisory contains comprehensive resources on the North Korean cyber
threat that aims at helping the international community, industries, and other governments to protect their infrastructure from state-sponsored attacks. The document also includes a list of recent attacks attributed to North Korean state-sponsored hackers.
The U.S. government is also offering a monetary reward of up to $5 million to anyone who can provide ‘information about the activities carried out by North Korea-linked APT groups. The offer also includes information about past hacking campaigns.
(SecurityAffairs – hacking, BLINDINGCAN)
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