Disclosure context

About lockbit5

Based on the provided data, LockBit5 appears to be a recently emerged ransomware operation first observed in December 2025, representing what may be a new iteration or rebrand within the LockBit ransomware ecosystem, with primary financial motivations evidenced by their targeting of high-value sectors. Given the LockBit naming convention and the timing of emergence, this group likely operates from Eastern Europe or Russia and may represent either a continuation of previous LockBit operations or a new affiliate group leveraging the established LockBit brand, though specific organizational details remain undocumented by major security agencies. While detailed attack methodologies have not been publicly documented by CISA, FBI, or major security researchers, the group's targeting pattern across 157 victims suggests a broad-spectrum approach focusing on technology, manufacturing, healthcare, and transportation sectors primarily in the United States, Brazil, Germany, Italy, and Mexico. Due to the group's recent emergence in December 2025, there are no publicly documented notable campaigns or major incidents reported by established threat intelligence sources, though the victim count indicates active operations. The group appears to be currently active based on the recent first observation date, though comprehensive analysis from major security agencies has not yet been published given the short timeframe since emergence. The group has been linked to 252 public disclosures across our corpus. First observed on a leak site on December 7, 2025; most recent post May 12, 2026. The operation is currently active.

Timeline of this disclosure

April 26, 2026erstransportes.com.br listed by lockbit5on the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Transportation/Logistics sector, which has 847 disclosures indexed across all operators we track. Geographically, erstransportes.com.br is reported in BR, a country with 189 ransomware disclosures in our corpus.

How we know this. Darkfield monitors public ransomware leak sites continuously, archiving every new disclosure and the data later released against the victim. Each entry on this page is sourced from the operator's own publication and cross-checked against complementary OSINT feeds (RansomLook, ransomware.live, RansomWatch). We do not collect or host stolen data — only the metadata, timestamps and screenshots needed to make the public disclosure searchable and accountable. Records here are corrected when the original post is edited, retracted, or merged with another disclosure.

Ransomware victim disclosure

← All victims

ERS Transporte e Logística

listed as erstransportes.com.br · Claimed by lockbit5 · listed 25 days ago

24d

Age

since listed · data leaked

Status timeline

Listed
Apr 26, 2026
Data leaked

At a glance

Group: lockbit5
Status: Data leaked
Country: BR
Sector: Transportation/Logistics
Listed on leak site: Apr 26, 2026

About the victim

AI dossier — public-source company profile

ERS Transporte e Logística is a Brazilian transport and logistics company founded in 2003, headquartered in Paranaguá with operations in São José dos Pinhais. The company provides national and international freight transport (including controlled and non-controlled chemical cargo, containers, and general goods), warehousing across 9,000 m² of infrastructure, and customs/port terminal services at major Brazilian ports and airports.

Industry: Freight Transport & Logistics
Address: Rua Professor Cleto, 1650, Paranaguá, Brasil; Rua Célia Teresinha Bassa, 1770, São José dos Pinhais, Brasil
Founded: 2003

Attack summary

Severity: high — Data has been published (confirmed exfiltration), and the company handles regulated cargo including controlled chemicals and customs/trade documentation, which elevates the sensitivity of the exposed data.

LockBit 5 claims to have attacked ERS Transporte e Logística, with the disclosure status listed as data_published, indicating that exfiltrated data has been released or made available. The leak post references company operational details, suggesting exfiltration of internal business data.

high

Data the group says was taken

AI dossier — extracted from the leak post

Company operational records
Freight and logistics documents
Customs and import/export records
Internal business data

What the group claims

A ERS Transportes, iniciou suas atividades em 2003, transportando cargas em equipamentos porta contê...

Sources

Source

Indexed 25 days ago

This page surfaces a public ransomware disclosure indexed by Darkfield. Original posts come from the operator's own leak site; we cross-check against ransomware.live, RansomLook and RansomWatch where applicable. Share this URL freely.