Disclosure context

About gunra

Gunra is an emerging ransomware group that was first observed in April 2025, operating with primarily financial motivations based on their targeting patterns across multiple high-value sectors. The group's origin and affiliations remain unclear due to limited public documentation from major security vendors, though their geographic targeting suggests possible international operations given their focus on victims across Brazil, South Korea, Japan, Canada, and Egypt. With approximately 20 known victims to date, Gunra appears to follow conventional ransomware attack methodologies typical of financially-motivated cybercriminal groups, though specific technical details regarding their initial access vectors, encryption methods, or use of double extortion tactics have not been publicly documented by major threat intelligence sources. The group demonstrates opportunistic targeting behavior, focusing primarily on manufacturing organizations while also compromising entities in healthcare, technology, and financial services sectors, suggesting they may operate opportunistically rather than with highly specialized sector expertise. Given the recent emergence of this group in April 2025 and limited public reporting from established threat intelligence organizations such as CISA, FBI, or major security vendors, Gunra's current operational status, technical capabilities, and long-term threat trajectory require continued monitoring as more intelligence becomes available. The group has been linked to 36 public disclosures across our corpus. First observed on a leak site on April 23, 2025; most recent post April 8, 2026. The operation is currently active.

Timeline of this disclosure

September 10, 2025hwacheon listed by gunraon 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, hwacheon is reported in South Korea, a country with 32 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

Samwha Capacitor Group

listed as hwacheon · Claimed by gunra · listed 8 months ago

Age

since listed · data leaked

Status timeline

Listed
Sep 10, 2025
Data leaked

At a glance

Group: gunra
Status: Data leaked
Country: South Korea
Sector: Manufacturing
Listed on leak site: Sep 10, 2025

About the victim

AI dossier — public-source company profile

Samwha Capacitor Group (삼화콘덴서그룹) is a South Korean manufacturer specializing in electronic components, particularly capacitors, as indicated by its public website at samwha.co.kr. The group's tagline references endless challenge and a focus on future-oriented growth. There is a notable mismatch between the victim name 'hwacheon' and the associated domain, suggesting possible misattribution or a group subsidiary relationship.

Industry: Electronic Components Manufacturing (Capacitors)

Attack summary

Severity: medium — Data has been published (data_published status), indicating confirmed exfiltration, but the scale, sensitivity, and exact nature of the data are unspecified. There is also significant uncertainty about the true victim identity due to mismatch between the victim name and the associated domain.

The Gunra ransomware group claims an attack on the victim and has published data (disclosed status: data_published). The leak post references exfiltration of business data related to industrial machinery manufacturing, though the AI-generated description of 'Hwacheon' may not accurately reflect the actual victim company.

medium

Data the group says was taken

AI dossier — extracted from the leak post

Business data (unspecified)
Company operational records

Original description

AI-summarised, not from the leak post

Hwacheon is a South Korean company recognized as one of Asia's leading manufacturers of high-quality industrial machinery. The company's product line includes machinery for die-molding, automobile parts, machinery molds, and high-precision parts. Hwacheon’s commitment is to provide technological innovation and customer satisfaction. Overall, the company's reputation is based on quality, reliability, and innovation in the machinery industry.

Sources

Victim sitesamwha.co.kr
Leak posthttp://gunrabxbig445sjqa535uaymzerj6fp4nwc6ngc2xughf2pedjdhk4ad.onion/samwha

Source

Indexed 8 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.