September 30, 2024 at 11:11AM
A recruitment officer fell for a sophisticated spear-phishing lure by downloading a malicious file disguised as a resume, resulting in a more_eggs backdoor infection. The Trend Micro MDR team utilized the Vision One platform to contain the infection and automate threat detection in a campaign associated with the more_eggs malware.
Based on the meeting notes, here are the key takeaways:
1. The incident involved a sophisticated spear-phishing attack leveraging the more_eggs backdoor, a JScript backdoor associated with financially motivated threat actors such as FIN6 and the Cobalt Group.
2. The attack was conducted through a fake resume file, John Cboins.zip, which contained a malicious .LNK file. The execution of the .LNK file led to the installation of the more_eggs backdoor and its related components.
3. Trend Micro MDR team leveraged the Vision One platform to quickly identify, contain, and respond to the threat, preventing potential data exfiltration or encryption.
4. The attack appears to be part of a larger campaign utilizing the more_eggs malware, which is part of the Golden Chickens toolkit distributed by Venom Spider, an underground malware-as-a-service provider.
5. Custom Detection Models and Security Playbooks were utilized within Trend Micro Vision One to automate response to the alert and block indicators of compromise, demonstrating the proactive defense measures taken by the team.
6. Attribution of the attacks is challenging due to the nature of Malware as a Service (MaaS), which allows for the outsourcing of attack components and infrastructure, making it difficult to trace specific threat actors.
7. The detailed analysis underscores the critical need for organizations to maintain continuous vigilance and implement robust threat detection measures to combat evolving threats.
These takeaways provide a clear understanding of the incident, response actions taken, and the importance of proactive threat detection and automated response mechanisms in combating sophisticated cyber threats.