Threat Intelligence - RH-ISAC Blog

A new dropper named “NullMixer” is spreading multiple malware families, including some seen regularly by the RH-ISAC community. Context On September 26, 2022, researchers at SecureList reported a new dropper they named “NullMixer” which spreads multiple malware families via malicious websites impersonating legitimate software downloads. According to SecureList, in addition to multiple malware families, NullMixer…

On September 21, 2022, the LockBit 3.0 ransomware builder named “Black” was leaked online by a developer working for the LockBit threat group. On September 22, 2022, security researchers Yang HuiSeong and Jeong Hyunsik released a technical analysis of the code. The leaked code is currently available on GitHub. Threat Actor Details LockBit is a…

Context On September 6, 2022, researchers at AT&T Alien Labs reported technical details of a new malware, “Shikitega,” that targets endpoints and internet of things (IoT) devices running Linux operating systems. Once delivered, Shikitega allows actors full remote access to the infected system and installs a cryptominer with persistence. Key takeaways from the report include:…

The threat actors behind the BianLian Ransomware are rapidly expanding infrastructure, and it has been observed targeting manufacturing organizations. Context On September 1, 2022, researchers at the cybersecurity firm Redacted published a technical analysis of the BianLian ransomware. In the past month, BianLian has been observed being deployed against numerous sectors, including manufacturing, healthcare, and…

The new HYPERSCRAPE data extraction tool developed by the Iranian Charming Kitten threat group eases the process of stealing email data from targeted accounts. Context On August 23, 2022, Google Threat Analysis Group (TAG) researchers published a technical analysis of a unique data extraction tool they named “HYPERSCRAPE” used by the Iranian state-backed Charming Kitten…