Was Siam Oil Product hit by ransomware?

Siam Oil Product was listed by the Panzer ransomware operation (Thailand), and stolen data was published on the group's leak site. Darkfield tracks this disclosure with the original leak post, screenshot and group context.

Who is the Panzer ransomware group?

Panzer is a ransomware operator tracked by Darkfield. See the full operator dossier for its known victims, sectors targeted, IOCs and leak-site infrastructure.

What data was leaked in the Siam Oil Product breach?

Panzer published data attributed to Siam Oil Product. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Siam Oil Product Co., Ltd.

listed as Siam Oil Product · Claimed by Panzer · listed 2 hours ago

Today

Age

since listed · data leaked

Status timeline

ListedAug 9, 2026
Data leakeddate unknown

At a glance

Group: Panzer
Status: Data leaked
Country: Thailand
Sector: Energy & Utilities
Listed on leak site: Aug 9, 2026

About the victim

AI dossier — public-source company profile

Siam Oil Product Co., Ltd. is a Thailand-based petroleum and industrial-products distributor with over 20 years of operation. The company supplies fuel oil, diesel, asphalt, base oils, lubricants, petrochemicals (HDPE/LDPE/LLDPE), plastic additives, and industrial products, and operates a coffee-shop franchise business. It has registered capital of THB 200 million and employs 700+ staff.

Industry: Petroleum & Industrial Products Distribution
Address: RS Tower, Ratchadaphisek Road, Din Daeng, Bangkok, Thailand
Employees: 700+

Attack summary

Severity: medium — Confirmed data exfiltration from a significant energy-sector distributor with 700+ employees and substantial operations across multiple product lines; however, the specific sensitivity and volume of exfiltrated data are not explicitly stated in the available post content.

Panzer group claims to have exfiltrated data from Siam Oil Product. The specific scope and nature of compromised data are not detailed in the available post excerpt.

medium

Data the group says was taken

AI dossier — extracted from the leak post

business records
operational data
customer/supplier information

What the group claims

Siam Oil Product Co., Ltd. is a Thailand-based petroleum and industrial-products distributor, operating for 20+ years with registered capital of THB 200 million and 700+ employees; it supplies fuel oil, diesel, asphalt, base oils, automotive/industrial lubricants, petrochemicals such as HDPE/LDPE/LLDPE, plastic additives, and industrial products, and also operates a coffee-shop franchise business. Its headquarters is at RS Tower, Ratchadaphisek Road, Din Daeng, Bangkok, Thailand.

Sources

Leak posthttp://pnzruro7syvwvefx5mpo2fhzi4jftgquynsqf3vy5x3no57yp2iz4nyd.onion/company/siam-oil-product

Source

Indexed 2 hours 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.

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Disclosure context

About Panzer

Panzer is a ransomware group first observed in August 2026 with an apparent primary motivation of financial gain, though limited public documentation exists given the group's recent emergence and low victim count. Based on available data, the group has claimed two known victims to date, with targeting concentrated in Switzerland and Indonesia, suggesting either opportunistic selection or early-stage operational development. The group has demonstrated interest in the Retail and E-Commerce and Education sectors, which are commonly targeted for their relatively lower cybersecurity maturity and potential for operational disruption that increases victim willingness to pay. No detailed technical analysis of Panzer's tooling, initial access vectors, encryption methodology, or extortion tactics has been publicly documented by CISA, the FBI, Mandiant, or other reputable threat intelligence sources at this time, which is consistent with the group's nascent status and minimal confirmed activity. Given the small victim count and very recent first-observed date, Panzer may represent a new or emerging threat actor, a rebranded entity, or a low-volume affiliate operating within a larger Ransomware-as-a-Service ecosystem, though none of these assessments can be confirmed without additional public reporting. Analysts should continue to monitor for indicators of expanded targeting, updated tooling disclosures, or law enforcement advisories that may shed further light on this group's capabilities and affiliations. The group has been linked to 4 public disclosures across our corpus. First observed on a leak site on August 5, 2026; most recent post August 9, 2026. The operation is currently active.

Timeline of this disclosure

August 9, 2026Siam Oil Product listed by Panzeron the group's public leak site

Other recent disclosures by Panzer

Panzer has been linked to 4 public victims on Darkfield. A sample of the most recent:

See the full Panzer dossier →

Sector and geography

This disclosure adds to ransomware activity in the Energy & Utilities sector, which has 168 disclosures indexed across all operators we track. Geographically, Siam Oil Product is reported in Thailand, a country with 59 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Panzer means Siam Oil Product 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 Panzer'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.