Banco Promerica de la República Dominicana listed on RansomHouse leak site

• Ransomware group: RansomHouse
• Country: Nicaragua
• Sector: Financial Services
• Announcement date: December 29, 2023

The RansomHouse ransomware group has listed Banco Promerica de la República Dominicana on its dedicated leak site. According to the announcement made by the threat actors, the institution's data has been targeted in a cyberattack, marking a potential breach for the financial services provider.

The claims made by RansomHouse

The threat actor known as RansomHouse officially listed Banco Promerica de la República Dominicana on its leak site on December 29, 2023. Through this announcement, the group claims to have successfully obtained a significant amount of data from the institution. The group asserts that the initial breach or the acquisition of the data occurred on December 8, 2023.

RansomHouse is a known threat actor that has been active since 2021. The group is primarily recognized for its focus on data exfiltration and extortion tactics. In modern ransomware campaigns, threat actors often utilize a method known as double extortion. This strategy involves not only encrypting an organization's systems to disrupt operations but also stealing sensitive information to use as leverage. By threatening to leak the stolen data on public forums or dark web leak sites, attackers increase the pressure on the victim to pay the ransom.

Details regarding the alleged data theft

While the leak site announcement confirms the involvement of the institution, specific details regarding the exact nature of the leaked information have not been provided. The announcement does not specify the types of files or the categories of data that were allegedly compromised. However, the group has provided a visual indication of the scale of the theft.

• The group claims to have obtained more than 0.1 TB of data.

The listing names no specific data types, providing only a volume measurement to indicate the extent of the alleged exfiltration.

About Banco Promerica de la República Dominicana

Banco Promerica de la República Dominicana is a financial institution operating under the Promerica Financial Corp umbrella. It provides commercial banking services within the Dominican Republic. As a member of the Promerica Group, which was established in 1991, the institution offers various financial products designed to support economic development throughout the region.

Potential impact and industry implications

This incident may pose a significant risk of exposing the institution's customer and operational data. Because the target is a financial institution, a potential breach of this nature could lead to customers being exposed to various secondary threats, such as identity theft or highly targeted phishing attacks. Furthermore, the institution may face legal sanctions under relevant data protection regulations depending on the jurisdiction and the nature of the data involved.

Given the double-extortion tactics employed by RansomHouse, the possibility that the data is being sold to third parties or released publicly must be considered. When organizations in the financial sector face such threats, they often prioritize incident response and forensic investigations to determine the scope of the exposure. Defensive measures typically include strengthening network segmentation, implementing robust multi-factor authentication, and enhancing monitoring capabilities to detect unauthorized data exfiltration early in the attack lifecycle.

Summary of the incident

The claims made by RansomHouse highlight the ongoing risks faced by financial institutions from sophisticated ransomware groups. As these groups continue to focus on data exfiltration to maximize their extortion leverage, the potential for both operational disruption and long-term reputational and legal damage remains high for targeted organizations.