Microsoft Breach Incident Score: Analysis & Impact (MIC1767116152)

In this Rankiteo incident briefing, we review the Microsoft breach identified under incident ID MIC1767116152.

The analysis begins with a detailed overview of Microsoft's information like the linkedin page: https://www.linkedin.com/company/Microsoft, the number of followers: 22923314, the industry type: Software Development and the number of employees: 229445 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 842 and after the incident was 839 with a difference of -3 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 Microsoft and their customers.

Microsoft (Impersonated) recently reported "Phishing Campaign Exploiting rnicrosoft.com Typosquatting Domain", a noteworthy cybersecurity incident.

A new phishing campaign is exploiting a visual trick by using the domain rnicrosoft.com to impersonate Microsoft and steal login credentials.

The disruption is felt across the environment, and exposing Login Credentials.

In response, and stakeholders are being briefed through Security Advisories, Public Awareness Campaigns.

The case underscores how teams are taking away lessons such as Typosquatting attacks exploit human behavior and visual perception, particularly on mobile devices. Users must verify URLs carefully, avoid clicking email links for sensitive actions, and rely on bookmarks for critical accounts, and recommending next steps like Expand the full sender address before clicking any links, Preview links before clicking (hover on desktop, long-press on mobile) and Avoid using email links for password or security alerts; manually navigate to official websites, with advisories going out to stakeholders covering Users advised to verify URLs, avoid clicking suspicious links, and follow security best practices.

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 Phishing (T1566) with high confidence (95%), with evidence including phishing Campaign Exploiting rnicrosoft.com Typosquatting Domain, and attack vector such as Email and Phishing: Spearphishing Link (T1566.002) with high confidence (90%), with evidence including tricking users into trusting the fraudulent domain, and malicious links. Under the Credential Access tactic, the analysis identified Brute Force: Password Guessing (T1110.001) with moderate to high confidence (70%), with evidence including steal login credentials, and credential phishing and Input Capture: Keylogging (T1056.001) with moderate confidence (60%), with evidence including login Credentials compromised, and fake HR notices or fraudulent payment requests. Under the Defense Evasion tactic, the analysis identified Hide Artifacts: Hidden Users (T1564.002) with moderate to high confidence (80%), with evidence including mimic Microsoft’s branding, email layout, and tone, and false sense of legitimacy and Masquerading: Match Legitimate Name or Location (T1036.005) with high confidence (90%), with evidence including rnicrosoft.com typosquatting, and impersonate Microsoft. Under the Reconnaissance tactic, the analysis identified Phishing for Information: Spearphishing Link (T1598.003) with moderate to high confidence (80%), with evidence including multiple typosquatting variations, and targeting banks, retailers, healthcare portals. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.