Disclosure context

About blackshrantac

Based on available intelligence, blackshrantac is a recently emerged ransomware group first observed in September 2025, operating with apparent financial motivations and demonstrating a geographically diverse targeting approach across multiple continents. The group has victimized 43 known entities primarily across India, the United States, Turkey, Peru, and Australia, suggesting either a broad opportunistic targeting strategy or access to varied initial compromise vectors that span different regions. Their sector targeting shows a preference for manufacturing, technology, financial services, and public sector organizations, though a significant portion of their attacks have occurred against entities in unspecified sectors, indicating either incomplete intelligence gathering or deliberate obfuscation of their targeting patterns. Due to the group's recent emergence and relatively limited public exposure, detailed information about their specific attack methodologies, tooling, encryption techniques, data exfiltration practices, or operational structure remains largely undocumented by major threat intelligence organizations and law enforcement agencies. The group's current operational status appears to be active given their recent first observation date, though the limited intelligence available suggests they may be either a smaller operation or have successfully maintained a lower profile compared to more established ransomware groups. The group has been linked to 43 public disclosures across our corpus. First observed on a leak site on September 17, 2025; most recent post January 20, 2026. The operation is currently active.

Timeline of this disclosure

November 13, 2025Carvimsa listed by blackshrantacon the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Manufacturing sector, which has 2,458 disclosures indexed across all operators we track. Geographically, Carvimsa is reported in PE, a country with 4 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

Corporación Azucarera del Perú (Carvimsa)

listed as Carvimsa · Claimed by blackshrantac · listed 6 months ago

Age

since listed · data leaked

Status timeline

Listed
Nov 13, 2025
Data leaked

At a glance

Group: blackshrantac
Status: Data leaked
Country: PE
Sector: Manufacturing
Listed on leak site: Nov 13, 2025

About the victim

AI dossier — public-source company profile

Carvimsa, formally Corporación Azucarera del Perú, is a Peruvian agro-industrial company specialising in the production and commercialisation of sugar, molasses, and alcohol. Its operations span integrated farming, industrial processing, and commercial distribution. Products are sold domestically and exported internationally.

Industry: Agro-Industrial Sugar & Alcohol Production

Attack summary

Severity: medium — Data has been published (disclosed status: data_published), indicating confirmed exfiltration, but no details on data volume, sensitivity, or regulated content (PII, financial, etc.) are provided, limiting severity to medium.

The group blackshrantac has disclosed data claimed to originate from Carvimsa, with the post status indicating data has been published. No specific details on encryption or the precise nature of exfiltrated data are provided in the truncated post.

medium

Original description

AI-summarised, not from the leak post

"Carvimsa" or Corporacion Azucarera del Peru is a Peruvian company involved in the agro-industrial sector, specifically specializing in the production and commercialization of sugar, molasses, and alcohol. Their products are primarily for domestic consumption but they also export to other countries. The company's operations are integrated with farming, industrial, and commercial activities.

Sources

Leak posthttp://b2ykcy2gcug4gnccm6hnrb5xapnresmyjjqgvhafaypppwgo4feixwyd.onion/targets/26

Source

Indexed 6 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.