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Importadora Monterrey SRL

Claimed by Sarcoma · listed 1 year ago

34.6 GB
Data size
15m
Age
since listed · data leaked

Status timeline

  1. ListedMar 22, 2025
  2. Data leakeddate unknown

At a glance

Group
Sarcoma
Status
Data leaked
Country
Bolivia
Listed on leak site
Mar 22, 2025
Data size
34.6 GB

About the victim

AI dossier — public-source company profile

Importadora Monterrey SRL is a Bolivian steel and construction materials distributor based in La Paz. They supply corrugated steel bars, corrugated sheets, galvanized wire, welding equipment, and related products to the civil construction sector, with backing from ArcelorMittal and multiple product lines including BELGO PRONTO cutting/bending services.

Industry
Steel & Construction Materials Distribution

Attack summary

Severity: medium — Confirmed exfiltration of 34.6 GB from a commercial enterprise with data published, but no indication of regulated/sensitive data (PII at scale, medical, financial records) or critical infrastructure impact. Data appears to be mixed commercial/operational records.

The Sarcoma group claims to have exfiltrated 34.6 GB of data from Importadora Monterrey SRL. The post does not explicitly state whether encryption occurred or provide details on the specific data categories compromised.

medium

Data the group says was taken

AI dossier — extracted from the leak post
  • Business records
  • Customer information
  • Financial data
  • Operations files

What the group claims

Importadora Monterrey SRL We provide steel solutions for civil construction, with excellent quality products, accompanied by a specialized technical advisory service in the hands of professionals in the field. Our steel has the backing of the world's No. 1 steel company, ArcerlorMittal. Our star product, corrugated steel or corrugated rod, is a type of laminated steel designed especially to build reinforced concrete structural elements. These are steel bars that have protrusions or corrugations that improve adhesion to the concrete, and have great ductility, which allows the bars to be cut and bent more easily. Among other products we have corrugated corrugated iron sheets, tile type and trapezoidal, with colors to choose from, nail factory, wheelbarrow factory, barbed wire, galvanized wire, PVC doors and windows, the BELGO PRONTO iron cutting and bending service, the entire range of the SOLDEXA welding line and the TAURO welding machines, as for new products we have the plastic separators of the COPLAS brand. The separator is a small piece whose very important mission is to place the steel of the reinforcement perfectly housed within the concrete until it sets.Geo: Bolivia - Leak size: 34.6 GB Archive - Contains: Files

Sources

Source

Indexed 1 year 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.

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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

  • March 22, 2025Importadora Monterrey SRL listed by Sarcomaon the group's public leak site
Data size
34.6 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

Geographically, Importadora Monterrey SRL is reported in Bolivia, a country with 2 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Sarcoma means Importadora Monterrey SRL 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.
  • 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.