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Why it issues: Malwarebytes’ Menace Intelligence Staff has issued a brand new warning to customers relating to a just lately recognized menace from the North Korean hacking group Lazarus. The assault makes use of faux paperwork with embedded macros designed to resemble Lockheed Martin employment info. As soon as the macro is executed, the exploit makes use of Home windows Replace and GitHub to ship payloads and infect unsuspecting customers.
The state-sponsored group, already suspected in previous assaults equivalent to WannaCry and quite a few assaults in opposition to U.S media outlets, was found utilizing Home windows Replace to ship malicious payloads whereas utilizing GitHub as a major command and management (C2) server. The assaults loosely adopted the group’s earlier dream job campaign, which focused organizations in addition to particular people within the protection, aerospace, and civilian authorities contracting sectors.
The spear phishing assault used two decoy MS Phrase paperwork with embedded macros (Lockheed_Martin_JobOpportunities.docx and Salary_Lockheed_Martin_job_opportunities_confidential.doc) that have been designed to seem as legitimate Lockheed Martin job announcement info. As soon as the malicious macros are executed by an unsuspecting person, the malware bundle completes a sequence of injections on the goal system to make sure persistence throughout goal machine startups.
This might be associated to #Lazarus #APT
– Accommodates macro (Frame1_Layout)
– Drops a lnk file in startup listing (WindowsUpdateConf.lnk)– Creates a hidden Home windows/System32 listing and drops wuaueng.dll (Although the dll seems to be benign)
– The lnk makes use of wuauclt.exe for execution pic.twitter.com/KmOz9m5gEr— Jazi (@h2jazi) January 18, 2022
An entire description of the assault course of, in addition to an in-depth dialogue of the person elements making up the assault, can be found on the Malwarebytes Lab Menace Intelligence Staff’s blog. Malwarebytes researchers and safety engineers attributed the assault to Lazarus based mostly on similarities to previous assaults by the North Korean group, equivalent to:
- Effectively-designed fraudulent job alternative paperwork branded with icons for protection contractors equivalent to Lockheed Martin, Northrop Grumman, and Boeing
- Particular concentrating on of job seekers within the protection and aerospace sectors
- Similarities in metadata that hyperlink the current spear phishing marketing campaign with comparable previous campaigns
An April 2020 Cyber Threat Advisory was launched by the DHS Cybersecurity and Infrastructure Safety Company (CISA) to supply formal steering relating to North Korea’s cyber exercise. The State Division’s Rewards for Justice (RFJ) program additionally gives steering on what kinds of info and exercise must be reported. Qualifying suggestions that disrupt any actions in opposition to the U.S. authorities are eligible for rewards of as much as $5 million {dollars}.
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