Disclosure context

About Payloadbin

Payloadbin is a relatively obscure ransomware group that emerged in September 2021, primarily motivated by financial gain through extortion operations targeting diverse sectors across multiple countries. The group's origin and potential affiliations remain largely undocumented in public threat intelligence reporting, with limited information available regarding whether they operate as an independent entity or utilize a Ransomware-as-a-Service model. Based on observed victim patterns, Payloadbin has demonstrated a broad targeting approach without apparent sector specialization, though they have notably impacted healthcare, manufacturing, agriculture and food production, and telecommunications organizations across 48 documented cases. Their attack methodology and specific technical capabilities have not been extensively documented by major security research organizations, though their operational pattern suggests standard ransomware deployment tactics. The group has primarily targeted victims in the United States, Philippines, Australia, Mexico, and the United Kingdom, indicating either a broad opportunistic approach or potential linguistic capabilities spanning English-speaking regions and select international markets. No major high-profile campaigns, significant law enforcement disruptions, or notable ransomware payment records have been publicly attributed to this group by federal agencies or established threat intelligence firms. Current operational status remains unclear due to limited public documentation, though the group's relatively recent emergence and modest victim count suggests they may represent a smaller-scale operation compared to prominent ransomware families tracked by CISA and FBI reporting. The group has been linked to 48 public disclosures across our corpus. First observed on a leak site on September 9, 2021; most recent post March 26, 2026. The operation is currently active.

Timeline of this disclosure

March 14, 2026Thai Solar Energy Public listed by Payloadbinon the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Energy sector, which has 374 disclosures indexed across all operators we track. Geographically, Thai Solar Energy Public is reported in Thailand, a country with 10 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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Thai Solar Energy Public Company Limited

listed as Thai Solar Energy Public · Claimed by Payloadbin · listed 2 months ago

Age

since listed · data leaked

Status timeline

Listed
Mar 14, 2026
Data leaked

At a glance

Group: Payloadbin
Status: Data leaked
Country: Thailand
Sector: Energy
Listed on leak site: Mar 14, 2026

About the victim

AI dossier — public-source company profile

Thai Solar Energy Public Company Limited (TSE) is a Bangkok-based solar energy company established in 2008. It claims to be the first company in Southeast Asia to apply advanced technology for converting solar radiation into green energy. TSE collaborates with internationally recognised energy institutes and specialised energy companies to evaluate and improve its performance.

Industry: Solar Energy Generation
Address: Bangkok, Thailand
Founded: 2008

Attack summary

Severity: high — The disclosure status is 'data_published', confirming that exfiltration has occurred and data has been released by the threat actor. TSE operates in the energy sector, which is considered critical infrastructure, elevating the severity. However, the absence of detail on specific data types (e.g., PII at scale, financial, or operational data) prevents a 'critical' classification.

The Payloadbin ransomware group has disclosed data from Thai Solar Energy Public Company Limited, with the status marked as data_published, indicating that exfiltrated data has been released or made available. The specific data types and volume exfiltrated are not detailed in the leak post.

high

What the group claims

Thai Solar Energy Public Company Limited (TSE) was established in 2008 based in Bangkok, Thailand. TSE is the first in Southeast Asia to have effectively applied an advanced technology to utilize the sun's radiation and converting it into green energy. TSE is in collaboration with several World renowned energy institutes and specialized energy companies to continuously evaluate our performance.

Source

Indexed 2 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.