Under Armour Breach Incident Score: Analysis & Impact (UND3992039111825)

In this Rankiteo incident briefing, we review the Under Armour breach identified under incident ID UND3992039111825.

The analysis begins with a detailed overview of Under Armour's information like the linkedin page: https://www.linkedin.com/company/under-armour, the number of followers: 934816, the industry type: Retail Apparel and Fashion and the number of employees: 12231 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 769 and after the incident was 579 with a difference of -190 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 Under Armour and their customers.

Under Armour recently reported "Under Armour Data Breach by Everest Ransomware Group", a noteworthy cybersecurity incident.

The Everest ransomware group claimed responsibility for breaching Under Armour, posting a sample of stolen data (allegedly over millions of personal records and 343GB of internal company data) on a dark web leak site.

The disruption is felt across the environment, and exposing personally identifiable information (PII), internal company documents and email addresses, with nearly millions (exact number undisclosed, 343GB of data exfiltrated) records at risk.

Formal response steps have not been shared publicly yet.

The case underscores how unconfirmed (Under Armour has not publicly responded), and recommending next steps like Customers should monitor accounts for suspicious activity (identity theft, fraud), Use identity theft protection software if concerned and Exercise caution with unexpected communications (e.g., phishing emails/texts), with advisories going out to stakeholders covering Monitor accounts for fraud/identity theft and Be wary of social engineering attempts (e.g., phishing).

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 Valid Accounts (T1078) with moderate to high confidence (70%), supported by evidence indicating everest ransomware group (known for exploiting valid accounts in breaches) and Exploit Public-Facing Application (T1190) with moderate confidence (60%), supported by evidence indicating no explicit vector, but ransomware groups often exploit web apps for initial access. Under the Credential Access tactic, the analysis identified Credentials from Password Stores (T1555) with moderate confidence (50%), supported by evidence indicating high-value PII/transaction data suggests lateral movement via compromised credentials. Under the Collection tactic, the analysis identified Data from Local System (T1005) with high confidence (95%), supported by evidence indicating 343GB of internal company data exfiltrated, including PII, order histories, transaction data and Data from Network Shared Drive (T1039) with moderate to high confidence (80%), supported by evidence indicating internal company documents leaked implies access to shared network resources. Under the Exfiltration tactic, the analysis identified Exfiltration Over Alternative Protocol: Exfiltration to Cloud Storage (T1048.003) with high confidence (90%), supported by evidence indicating 343GB of data exfiltrated (commonly staged to cloud storage before leak site publication) and Exfiltration Over C2 Channel (T1041) with moderate to high confidence (70%), supported by evidence indicating everest group’s modus operandi includes C2-based exfiltration before ransom demands. Under the Impact tactic, the analysis identified Data Encrypted for Impact (T1486) with moderate confidence (60%), supported by evidence indicating ransomware attack (Everest strain) implies potential encryption, though not explicitly confirmed and Data Destruction (T1485) with lower confidence (40%), supported by evidence indicating ransomware groups may threaten destruction if ransom unpaid (7-day ultimatum issued). Under the Defense Evasion tactic, the analysis identified Indicator Removal: File Deletion (T1070.004) with moderate to high confidence (70%), supported by evidence indicating ransomware operations often delete logs/artifacts to evade detection and Impair Defenses: Disable or Modify Tools (T1562.001) with moderate confidence (60%), supported by evidence indicating typical ransomware TTP to disable security tools (e.g., EDR) during lateral movement. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.