Was CP Construplan hit by ransomware?

CP Construplan was listed by the Sarcoma ransomware operation (Brazil), and stolen data was published on the group's leak site. Darkfield tracks this disclosure with the original leak post, screenshot and group context.

Who is the Sarcoma ransomware group?

Sarcoma is a ransomware operator tracked by Darkfield. See the full operator dossier for its known victims, sectors targeted, IOCs and leak-site infrastructure.

What data was leaked in the CP Construplan breach?

Sarcoma published data attributed to CP Construplan (~135 GB). Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

← All victims

CP Construplan

Claimed by Sarcoma · listed 2 years ago

135 GB

Data size

20m

Age

since listed · data leaked

Status timeline

ListedNov 14, 2024
Data leakeddate unknown

At a glance

Group: Sarcoma
Status: Data leaked
Country: Brazil
Sector: Business Services
Listed on leak site: Nov 14, 2024
Data size: 135 GB

About the victim

AI dossier — public-source company profile

CP Construplan is a Brazilian construction and real estate development company headquartered in Ribeirão Preto, São Paulo state. Over 41 years, they have completed 634 projects and delivered over 4,110 residential units, operating across industrial, commercial, and residential sectors with multiple ongoing developments across São Paulo.

Industry: Real Estate Development & Construction
Address: Ribeirão Preto, SP, Brazil (primary operations); multiple project locations across São Paulo state
Founded: 1983

Attack summary

Severity: high — Confirmed exfiltration of 135 GB from a major construction firm; likely includes project blueprints, client PII, financial, and operational data typical of large real estate developers. Scale and sensitivity of construction/real estate business data (client names, addresses, financial terms, project details) warrant high classification.

Sarcoma group claims to have exfiltrated 135 GB of data from CP Construplan. The leak post does not specify the attack method (encryption vs. data-only) or explicitly detail what data classes were stolen, but advertises a 135 GB archive.

high

Data the group says was taken

AI dossier — extracted from the leak post

Project files and documentation
Client information
Real estate development plans
Business records

What the group claims

We are CP Construplan Our formula for success is based on values such as loyalty, ethics, respect, commitment and unity, in addition to our passion for engineering. We deal with inventiveness and face challenges in grand projects, winning seals, awards and certifications. We establish a quality standard that strengthens our brand and differentiates our engineering projects. If you are looking for quality homes, construction of exceptional real estate developments and a construction company that takes its commitment to excellence seriously, you have found CP Construplan!Geo: Brazil - Leak size: 135 GB Archive - Contains: Files

Sources

Victim sitecpconstruplan.com.br

Source

Indexed 2 years 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.

Is this your supplier? Your competitor? You?

Pro plans monitor your domain, corporate emails, and crypto wallets across every new ransomware leak-site post, breach dump and Telegram callout — alerts within 5 minutes.

Disclosure context

About Sarcoma

Sarcoma is a relatively new ransomware group that emerged in October 2024, operating with apparent financial motivations and demonstrating a broad international targeting approach with at least 140 documented victims across multiple countries and industry sectors. The group's origin and affiliations remain unclear due to its recent emergence, with no publicly documented connections to established ransomware families or confirmation of whether they operate as an independent entity or through a Ransomware-as-a-Service model. Limited public information is available regarding Sarcoma's specific attack methodologies, initial access vectors, or technical capabilities, though their targeting patterns suggest opportunistic rather than highly selective victim selection across diverse industries including manufacturing, business services, agriculture and food production, and technology sectors. The group has shown a particular focus on victims in the United States while also maintaining operations against targets in Italy, Canada, Germany, and Australia, though no specific high-profile attacks or record ransom demands have been publicly documented by major security firms or law enforcement agencies. Given the group's recent emergence in late 2024, Sarcoma appears to remain active with no reported law enforcement disruptions or confirmed rebranding activities at this time. The group has been linked to 150 public disclosures across our corpus. First observed on a leak site on October 9, 2024; most recent post May 12, 2026. The operation is currently active.

Also tracked as: Sarcoma Ransomware Group.

Timeline of this disclosure

November 14, 2024CP Construplan listed by Sarcomaon the group's public leak site

Data size: 135 GB

Other recent disclosures by Sarcoma

Sarcoma has been linked to 150 public victims on Darkfield. A sample of the most recent:

See the full Sarcoma dossier →

Sector and geography

This disclosure adds to ransomware activity in the Business Services sector, which has 3,796 disclosures indexed across all operators we track. Geographically, CP Construplan is reported in Brazil, a country with 404 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Sarcoma means CP Construplan appeared on a ransomware extortion site and data attributed to it has been published. If this is your organisation, or a supplier you depend on, the priority is to confirm the intrusion and contain it before the window to act closes.

Engage your incident-response team and preserve forensic evidence before remediating — do not wipe affected systems first.
Force a password reset and revoke active sessions for exposed accounts; rotate any credentials, API keys or certificates that may have been in the stolen data.
Assess regulatory notification duties (GDPR, NIS2, sector regulators) — many carry a 72-hour reporting clock from awareness.
Report the incident to your national CERT, CERT.br (Brazil), as required for your jurisdiction.
Monitor for the data appearing on Sarcoma's leak site and across paste and breach channels, and brief downstream partners who may be exposed through you.

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.