Skip to main content
Darkfield

Ransomware victim disclosure

← All victims

Peroni Sosa Tellechea Burt & Narvaja

Claimed by Payload · listed 3 months ago

2m
Age
since listed · data leaked

Status timeline

  1. ListedApr 23, 2026
  2. Data leakeddate unknown

At a glance

Group
Payload
Status
Data leaked
Country
Uruguay
Sector
Business Services
Listed on leak site
Apr 23, 2026

About the victim

AI dossier — public-source company profile

Peroni Sosa Tellechea Burt & Narvaja (PSTBN) is described as one of the largest and most prestigious law firms in Paraguay, founded in 1968. The firm serves clients across multiple practice areas including corporate law, tax law, agribusiness, and regulatory compliance. Note: the country field lists Uruguay (UY), though the leak post identifies the firm as operating in Paraguay.

Industry
Legal Services
Founded
1968

Attack summary

Severity: high — Data has been published (data_published status) from a major law firm, which almost certainly contains privileged attorney-client communications, sensitive corporate and financial records, and confidential client PII — constituting significant business and potentially regulated data exposure.

The group 'payload' claims to have compromised Peroni Sosa Tellechea Burt & Narvaja and has published data (disclosed status: data_published), though the leak post does not specify whether encryption occurred or detail the volume of exfiltrated data.

high

Data the group says was taken

AI dossier — extracted from the leak post
  • Legal client files
  • Corporate law documents
  • Tax records
  • Regulatory compliance documents
  • Agribusiness-related legal records

What the group claims

PSTBN Peroni Sosa Tellechea Burt & Narvaja is one of the largest and most prestigious law firms in Paraguay, founded in 1968. The firm is committed to meeting the diverse legal needs of its clients across various practice areas, including corporate law, tax law, agribusiness, and regulatory compliance.

The leak post

captured from the group's site
[ Inteceng.com.my (+ Tsksynergy.com.my + Amemanufacturing.com.my + Woodnova.com.my)  
```
These websites represent a synergistic group of Malaysian companies, such as AME Elite and TSK Synergy, specializing in integrated industrial construction and engineering solutions. They provide end-to-end services, including the design and fabrication of steel structures, mechanical engineering, and the development of large-scale industrial parks. Together, they leverage their combined expertise to deliver "turnkey" manufacturing facilities and infrastructure projects across the region.
```
](http://payloadrz5yw227brtbvdqpnlhq3rdcdekdnn3rgucbcdeawq2v6vuyd.onion/posts/61827d93-eb95-42af-b264-9b84aeecefb7) [ 
```
Gorey Community School is a co-educational, multi-denominational institution located in Gorey, Co. Wexford, under the joint patronage of the Loreto Sisters and Waterford and Wexford ETB
```
](http://payloadrz5yw227brtbvdqpnlhq3rdcdekdnn3rgucbcdeawq2v6vuyd.onion/posts/c9049f7c-de08-4099-a2f7-d8ae8e421682) [ PROM (Peakside Ros Outlet Management)  
```
PROM (Peakside Ros Outlet Management) is a joint venture established by the investment firm Peakside Capital and the operator Ros Retail t…

Screenshot of the leak post

Leak screenshot for Peroni Sosa Tellechea Burt & Narvaja

Sources

Source

Indexed 3 months 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 payload

Based on the limited publicly available information, Payload is an emerging ransomware group first observed in February 2026 with a primarily financial motivation, having targeted 19 documented victims across multiple countries and sectors. The group's origin and affiliations remain unclear, with no documented evidence of their operational structure, country of origin, or whether they operate as a Ransomware-as-a-Service model or independent entity. Their attack methodology, encryption techniques, and specific tools used have not been publicly documented by major cybersecurity firms or law enforcement agencies. The group has demonstrated a diverse targeting approach, focusing primarily on victims in the Philippines, United States, United Kingdom, Mexico, and Dominican Republic, with particular emphasis on manufacturing, agriculture and food production, transportation/logistics, and telecommunication sectors, though the specific campaigns and ransom demands remain undisclosed in public threat intelligence reports. Given the group's recent emergence and limited public documentation, Payload appears to be currently active but remains a relatively obscure threat actor with insufficient publicly available data to establish comprehensive intelligence assessments from major cybersecurity organizations or law enforcement agencies. The group has been linked to 69 public disclosures across our corpus. First observed on a leak site on February 17, 2026; most recent post July 10, 2026. The operation is currently active.

Timeline of this disclosure

  • April 23, 2026Peroni Sosa Tellechea Burt & Narvaja listed by payloadon the group's public leak site

Other recent disclosures by payload

payload has been linked to 69 public victims on Darkfield. A sample of the most recent:

See the full payload 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, Peroni Sosa Tellechea Burt & Narvaja is reported in Uruguay.

If your organisation is affected

A listing by payload means Peroni Sosa Tellechea Burt & Narvaja 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 payload'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.