Hidroelectrica Breach Incident Score: Analysis & Impact (COMDIRHID1767023731)

In this Rankiteo incident briefing, we review the Hidroelectrica breach identified under incident ID COMDIRHID1767023731.

The analysis begins with a detailed overview of Hidroelectrica's information like the linkedin page: https://www.linkedin.com/company/hidroelectrica-s-a, the number of followers: 11802, the industry type: Utilities and the number of employees: 615 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 787 and after the incident was 708 with a difference of -79 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 Hidroelectrica and their customers.

On 26 December 2023, Oltenia Energy Complex (Complexul Energetic Oltenia) disclosed Ransomware issues under the banner "Ransomware Attack on Oltenia Energy Complex".

A ransomware attack hit Oltenia Energy Complex (Complexul Energetic Oltenia), Romania's largest coal-based energy producer, on the second day of Christmas, taking down its IT infrastructure.

The disruption is felt across the environment, affecting ERP systems, document management applications, email service, website, and exposing Documents and files encrypted.

In response, teams activated the incident response plan, moved swiftly to contain the threat with measures like IT teams started rebuilding affected systems on new infrastructure using backups, and began remediation that includes Rebuilding affected systems on new infrastructure, while recovery efforts such as Using existing backups continue, and stakeholders are being briefed through Public disclosure of incident details.

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 Valid Accounts (T1078) with high confidence (90%), with evidence including exploiting compromised credentials, and attack vector such as Compromised credentials and Internet-exposed services and Exploit Public-Facing Application (T1190) with moderate to high confidence (80%), supported by evidence indicating internet-exposed services as attack vector. Under the Execution tactic, the analysis identified User Execution: Malicious File (T1204.002) with moderate to high confidence (70%), supported by evidence indicating ransomware encrypted files with .7mtzhh extension. Under the Impact tactic, the analysis identified Data Encrypted for Impact (T1486) with high confidence (100%), with evidence including data encryption such as Yes (.7mtzhh file extension), and ransomware encrypted files and Defacement: Internal Defacement (T1491.001) with moderate to high confidence (80%), supported by evidence indicating website listed among systems affected. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with moderate to high confidence (70%), supported by evidence indicating data exfiltration such as Under assessment. Under the Credential Access tactic, the analysis identified Brute Force: Password Guessing (T1110.001) with moderate confidence (60%), supported by evidence indicating gentlemen ransomware known for exploiting compromised credentials. 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 typically deletes original files post-encryption. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.