Ransomware Attack Hits Andrade Gutierrez

Andrade Gutierrez, a Brazilian multi-national construction company, has been hit with a ransomware attack. Dunghill Leak has claimed responsibility for the attack, posting Andrade Gutierrez to its dark web blog page on May 29. Andrade Gutierrez is a Brazilian multinational conglomerate based in Belo Horizonte, Brazil. It is the second largest construction company in Brazil and has locations in 44 companies. It aids in constructing hydroelectric power plants, thermoelectric power plants, nuclear power plants, petrochemical plants, mines, steel refineries, harbours, subways, airports, and railroads.

The Attack Details

The attack was originally posted to the Dark Angels dark web blog page on March 7, but Dark Angels has since undergone a rebrand to become “Dunghill Leak” and reposted it to the new site. The ransomware group claims to have stolen 3TB of data including names, email addresses, passport details, payment info, tax ID numbers, and health insurance information on over 10,000 employees. Andrade Gutierrez has neither confirmed nor denied the incident.

About Dunghill Leak

Dunghill Leak is thought to be a rebrand of an older ransomware gang known as Dark Angels, which was first identified in May 2022. The group deploys the Babuk ransomware variant, which attempts to inhibit system recovery and terminate any process that could interfere with the encryption process.

Ransomware Attacks in General

Ransomware attacks typically involve threat groups encrypting an organization’s data and demanding a ransom for the decryption key. Cybercriminals typically target organizations that will suffer greatly from stolen data or downtime, and that can afford to pay ransoms.