Stryker Breach Incident Score: Analysis & Impact (STR1773240573)

In this Rankiteo incident briefing, we review the Stryker breach identified under incident ID STR1773240573.

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 759 and after the incident was 737 with a difference of -22 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 "Stryker Hit by Destructive Cyberattack Linked to Iranian-Backed Group", a noteworthy cybersecurity incident.

A global medical technology firm, Stryker, suffered a devastating wiper cyberattack suspected to be orchestrated by Handala Hack, a group with ties to the Iranian regime.

The disruption is felt across the environment, affecting IT systems, manufacturing operations, employee devices (Outlook, Microsoft Teams), and exposing Permanent deletion of data from infected systems.

In response, teams activated the incident response plan, moved swiftly to contain the threat with measures like Employees instructed to avoid connecting to the company’s network via any device, and began remediation that includes Restoring systems, and stakeholders are being briefed through Staff memo, WhatsApp groups for updates.

The case underscores how Ongoing, with advisories going out to stakeholders covering Sites and personnel remain safe; focus on restoring systems.

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 Exploit Public-Facing Application (T1190) with moderate confidence (50%), supported by evidence indicating crippling critical IT systems and manufacturing operations and Valid Accounts (T1078) with moderate confidence (60%), supported by evidence indicating devices connected to Stryker’s network...were wiped. Under the Execution tactic, the analysis identified User Execution: Malicious File (T1204.002) with moderate to high confidence (70%), supported by evidence indicating wiper cyberattack...permanent deletion of data from infected systems. Under the Impact tactic, the analysis identified Data Destruction (T1485) with high confidence (90%), supported by evidence indicating permanent deletion of data from infected systems, hallmark of wiper attacks, Defacement: Internal Defacement (T1491.001) with moderate to high confidence (80%), supported by evidence indicating login screens were defaced with the Handala logo, and Data Manipulation: Stored Data Manipulation (T1565.001) with moderate to high confidence (70%), supported by evidence indicating disrupted production of Stryker’s medical devices. Under the Defense Evasion tactic, the analysis identified Indicator Removal: Clear Windows Event Logs (T1070.001) with moderate confidence (60%), supported by evidence indicating permanent deletion of data from infected systems and Impair Defenses: Disable or Modify Tools (T1562.001) with moderate to high confidence (70%), supported by evidence indicating crippling critical IT systems and manufacturing operations. Under the Lateral Movement tactic, the analysis identified Remote Services: Remote Desktop Protocol (T1021.001) with moderate confidence (50%), supported by evidence indicating devices connected to Stryker’s network...were wiped. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.