Stryker Breach Incident Score: Analysis & Impact (STR1773714231)

In this Rankiteo incident briefing, we review the Stryker breach identified under incident ID STR1773714231.

The analysis begins with a detailed overview of Stryker's information like the linkedin page: https://www.linkedin.com/company/stryker, the number of followers: 1694532, the industry type: Medical Equipment Manufacturing and the number of employees: 50225 employees

After the initial compromise, the video explains how Rankiteo's incident engine converts technical details into a normalized incident score. The incident score before the incident was 820 and after the incident was 809 with a difference of -11 which is could be a good indicator of the severity and impact of the incident.

In the next step of the video, we will analyze in more details the incident and the impact it had on Stryker and their customers.

Stryker recently reported "Iranian Threat Actor Handala Hack Launches Destructive Cyberattacks Across Israel, Albania, and the U.S.", a noteworthy cybersecurity incident.

A cyber threat group linked to Iran’s Ministry of Intelligence and Security (MOIS), known as Handala Hack (also tracked as Void Manticore, Red Sandstorm, and Banished Kitten), has executed a series of data-destructive attacks targeting organizations in Israel, Albania, and the...

The disruption is felt across the environment, affecting Master Boot Records (MBR), User directories and Virtual machines, and exposing Permanent data erasure.

Formal response steps have not been shared publicly yet.

Overall, the incident is a reminder of why proactive monitoring and strong governance matter.

Finally, we try to match the incident with the MITRE ATT&CK framework to see if there is any correlation between the incident and the MITRE ATT&CK framework.

The MITRE ATT&CK framework is a knowledge base of techniques and sub-techniques that are used to describe the tactics and procedures of cyber adversaries. It is a powerful tool for understanding the threat landscape and for developing effective defense strategies.

Rankiteo's analysis has identified several MITRE ATT&CK tactics and techniques associated with this incident, each with varying levels of confidence based on available evidence. Under the Initial Access tactic, the analysis identified External Remote Services (T1133) with high confidence (90%), with evidence including compromised VPN credentials, and intrusions typically begin with compromised VPN credentials and Exploit Public-Facing Application (T1190) with moderate to high confidence (70%), with evidence including rDP exploitation, and once inside, operators use RDP to navigate manually. Under the Execution tactic, the analysis identified Command and Scripting Interpreter: PowerShell (T1059.001) with high confidence (90%), supported by evidence indicating aI-assisted PowerShell script as part of its wiping toolkit and Windows Management Instrumentation (T1047) with moderate to high confidence (80%), supported by evidence indicating handala Wiper distributed via Group Policy logon scripts (handala.bat). Under the Persistence tactic, the analysis identified Account Manipulation (T1098) with moderate to high confidence (70%), supported by evidence indicating compromised VPN credentials obtained through brute-force attacks and Boot or Logon Autostart Execution: Registry Run Keys / Startup Folder (T1547.001) with moderate to high confidence (80%), supported by evidence indicating group Policy logon scripts (handala.bat) for wiper deployment. Under the Privilege Escalation tactic, the analysis identified Valid Accounts (T1078) with high confidence (90%), with evidence including compromised VPN credentials, and rDP exploitation with attacker-controlled machines. Under the Defense Evasion tactic, the analysis identified Indicator Removal: Clear Windows Event Logs (T1070.001) with moderate confidence (60%), supported by evidence indicating destructive phase employs four simultaneous wiping techniques, Impair Defenses: Disable or Modify Tools (T1562.001) with moderate to high confidence (70%), supported by evidence indicating veraCrypt abuse to lock drives and prevent recovery, and Masquerading (T1036) with moderate to high confidence (80%), supported by evidence indicating netBird, a legitimate peer-to-peer networking tool, to tunnel traffic. Under the Credential Access tactic, the analysis identified Brute Force (T1110) with moderate to high confidence (80%), supported by evidence indicating compromised VPN credentials obtained through brute-force attacks and Unsecured Credentials: Credentials In Files (T1552.001) with moderate confidence (60%), supported by evidence indicating supply chain breaches for credential access. Under the Lateral Movement tactic, the analysis identified Remote Services: Remote Desktop Protocol (T1021.001) with high confidence (90%), supported by evidence indicating rDP exploitation to navigate manually within victim networks and Account Discovery: Domain Account (T1087.002) with moderate to high confidence (70%), supported by evidence indicating multiple attacker-controlled machines within a single environment. Under the Impact tactic, the analysis identified Data Destruction (T1485) with high confidence (100%), with evidence including permanently erase data, and four simultaneous wiping techniques to maximize damage, Disk Wipe: Disk Structure Wipe (T1561.002) with high confidence (90%), with evidence including corrupting Master Boot Records (MBR), and handala Wiper overwrites files, and Inhibit System Recovery (T1490) with high confidence (90%), with evidence including veraCrypt abuse to lock drives, and delete virtual machines and files over RDP. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.