Regis Resources Ltd Breach Incident Score: Analysis & Impact (REGREG1767762104)

In this Rankiteo incident briefing, we review the Regis Resources Ltd breach identified under incident ID REGREG1767762104.

The analysis begins with a detailed overview of Regis Resources Ltd's information like the linkedin page: https://www.linkedin.com/company/regis-resources, the number of followers: 18224, the industry type: Mining and the number of employees: 331 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 770 and after the incident was 668 with a difference of -102 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 Regis Resources Ltd and their customers.

On 05 January 2026, Regis Resources disclosed Ransomware issues under the banner "Lynx Ransomware Group Claims Cyber Attack on Regis Resources".

Regis Resources, a gold producer based in Western Australia, confirmed a cyber intrusion in November 2025.

The disruption is felt across the environment, and exposing No data export occurred.

In response, teams activated the incident response plan, moved swiftly to contain the threat with measures like Temporarily shut down and restricted access to systems, and began remediation that includes Forensic investigation, and stakeholders are being briefed through Public statement confirming the incident.

The case underscores how Ongoing.

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 lower confidence (40%), supported by evidence indicating cybersecurity systems detected and contained the intrusion and External Remote Services (T1133) with moderate confidence (50%), supported by evidence indicating temporarily shut down affected systems. Under the Execution tactic, the analysis identified User Execution: Malicious File (T1204.002) with moderate confidence (60%), supported by evidence indicating lynx ransomware group listed the company on its dark web leak site. Under the Defense Evasion tactic, the analysis identified Impair Defenses: Disable or Modify Tools (T1562.001) with moderate to high confidence (70%), supported by evidence indicating temporarily shut down and restricted access to systems and Indicator Removal: Clear Windows Event Logs (T1070.001) with moderate confidence (50%), supported by evidence indicating forensic investigation found no evidence of data exfiltration. Under the Credential Access tactic, the analysis identified Account Discovery: Domain Account (T1087.002) with moderate to high confidence (80%), supported by evidence indicating names and positions of key executives included by threat actor. Under the Impact tactic, the analysis identified Data Encrypted for Impact (T1486) with moderate to high confidence (70%), supported by evidence indicating lynx ransomware group listed the company (type such as Ransomware). Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with lower confidence (30%), supported by evidence indicating unclear if data was exfiltrated; no evidence found. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.