Disclosure context

About Nokoyawa

Nokoyawa is a ransomware group that emerged in December 2022, operating with primarily financial motivations and targeting organizations across multiple sectors including healthcare, non-profit, education, finance, and energy. The group has claimed at least 36 victims since its emergence, with attacks predominantly focused on the United States, Canada, United Kingdom, France, and the Philippines. While detailed technical analysis of Nokoyawa's operations remains limited in public reporting, the group appears to follow conventional ransomware tactics targeting critical infrastructure and essential services sectors. Their targeting of healthcare and educational institutions suggests they operate without the sector restrictions that some other ransomware groups have adopted. Notable campaigns include attacks across their preferred geographic regions, though specific high-profile incidents have not been extensively documented in public threat intelligence reporting from major security firms. As of current reporting, Nokoyawa appears to remain an active threat, though the group's relatively recent emergence means long-term operational patterns and potential law enforcement disruption efforts are still developing. The group has been linked to 36 public disclosures across our corpus. First observed on a leak site on December 9, 2022; most recent post August 4, 2023. The operation is currently inactive.

Timeline of this disclosure

May 23, 2023CONEX listed by Nokoyawaon the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Technology sector, which has 2,524 disclosures indexed across all operators we track. Geographically, CONEX is reported in France, a country with 472 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

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CONEX

Claimed by Nokoyawa · listed 3 years ago

36m

Age

since listed · data leaked

Status timeline

Listed
May 23, 2023
Data leaked

At a glance

Group: Nokoyawa
Status: Data leaked
Country: France
Sector: Technology
Listed on leak site: May 23, 2023

About the victim

AI dossier — public-source company profile

CONEX is a French SaaS software company specialising in customs procedure management, with over 30 years of experience. Their modular platform handles all types of customs declarations (Import, Export, NCTS, ICS2, EMCS, GVMS, etc.) and provides EDI interconnection between businesses, customs administrations, suppliers, and customers. The company operates across France, Belgium, the United Kingdom, and Ireland.

Industry: Customs Compliance & Trade Declaration Software (SaaS)
Address: France (CONEX SAS); Belgium (CONEX SRL); United Kingdom (CONEX SYSTEMS LTD); Ireland (CONEX SYSTEMS LIMITED). French headquarters reachable at Tel. +33(0)3 20 41 43 00, [email protected]

Attack summary

Severity: high — CONEX is a SaaS platform processing sensitive customs and trade compliance data for multiple corporate clients across several countries. A confirmed data publication by Nokoyawa implies exfiltration of significant business data that likely includes client customs records, trade transaction data, and potentially regulated cross-border trade information, representing serious exposure for CONEX and its downstream customers.

The Nokoyawa ransomware group claims to have attacked CONEX and has published data ('data_published' status), though the leak post does not specify the volume of data exfiltrated or detail whether encryption of systems also occurred.

high

Data the group says was taken

AI dossier — extracted from the leak post

Customs declaration data
EDI exchange records
Customer business data
Supplier interconnection data
Internal business files

What the group claims

CONEX is a customs procedure management software specialist. Our SaaS platform, complete and modular, is dedicated to the treatment of all types of declarations. It’s our core business, and we master all the components of it. We cover all your interconnection needs with customs administrations...

Sources

Victim siteconex.net
Leak posthttp://nokoleakb76znymx443veg4n6fytx6spck6pc7nkr4dvfuygpub6jsid.onion/leak/63acb4be0cc2cef7f87770a3

Source

Indexed 3 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.