The Cuba ransomware gang has attacked New Concept Technology. New Concept Technology is a manufacturing solutions provider headquartered in the USA. Cuba posted New Concept Technology to its data leak site on October 24th, leaking all stolen data. Cuba is a RaaS that first emerged in 2019, but activity did not really ramp up until 2022, and attacks have continued to steadily increase through the first half of 2023. Cuba is assessed to be Russian-operated and connected to threat actors RomCom and Industrial Spy. Cuba is effective but does not really stand out amongst threat actors – their operations are fairly generic, but they do have the ability to bypass multiple security solutions with relative ease. In August, Cuba was observed targeting vulnerability for backup and disaster recovery offering Veeam (CVE-2023-27532). Cuba’s attack volume appears to have doubled in early 2023 over 2022 levels. Cuba operators have demanded some of the highest ransoms ever (in the tens of millions) but it is highly unlikely they have collected anywhere close to their outrageous demands. Like most operators, Cuba relies on phishing, exploitable vulnerabilities, and compromised RDP credentials for ingress and lateral movement, and uses the symmetric encryption algorithm ChaCha20 appended with a public RSA key. Cuba leverages PowerShell, Mimikatz, SystemBC and the Cobalt Strike platform. Overall, Cuba is not the most sophisticated ransomware in the wild but appears to be effective, and they have been observed to be improving their toolset with the addition of a custom downloader dubbed BUGHATCH, a security-bypass tool called BURNTCIGAR that terminates processes at the kernel level, the Metasploit array and Cobalt Strike in addition to several LOLBINS including cmd.exe for lateral movement ping.exe for reconnaissance. Cuba selects victims on their ability to pay large ransom demands, targeting larger organizations in financial services, government, healthcare, critical infrastructure, and IT sectors. Cuba exfiltrates victim data for double-extortion and maintain a leaks site where they publish victim data if the ransom demand is not met. Cuba operators have a decent reputation as far as providing a decryption key to victims who pay the ransom demand.
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