Bluebravo

BlueBravo, a threat actor linked to the Russia-based Advanced Persistent Threat (APT) group APT29, has been identified as a significant cyber threat. Also known by various other names such as SVR Group, Cozy Bear, Nobelium, Midnight Blizzard, and The Dukes, this entity is suspected of conducting several high-profile cyber-attacks. Recently, TeamViewer discovered a breach in its corporate network, which some reports attribute to BlueBravo. This group is known for its sophisticated tactics, including spear-phishing campaigns and exploiting software vulnerabilities for intelligence gathering. In a recent large-scale spear-phishing campaign, Microsoft warned that BlueBravo targeted over 1,000 users across more than 100 organizations. Additionally, Google's Threat Analysis Group (TAG) observed activities from this group, further underlining its active presence in the cyberspace. The APT29 group, associated with BlueBravo, has also been reported to target vulnerable Zimbra and JetBrains TeamCity servers in a mass scale campaign, as warned by U.S. and U.K. cyber agencies. Despite some differentiation among these groups by the French agency ANSSI, it is clear that they all pose serious threats to cybersecurity. Notably, BlueBravo has been implicated in several significant historical cyber events. For instance, the Midnight Blizzard group, associated with BlueBravo, along with APT28, was involved in the Democratic National Committee hack and a series of attacks during the 2016 US Presidential Elections. Furthermore, the group was responsible for the SolarWinds supply chain attack in 2020 that affected over 18,000 customer organizations, including Microsoft. Current threat intelligence suggests that BlueBravo employs tactics such as targeting Windows Management Instrumentation (WMI) and PowerShell, providing valuable information for future threat hunting activities.