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Petrovietnam Technical Services Corporation (PTSC)

listed as PTSC · Claimed by Karakurt · listed 4 years ago

1.3 TB
Data size
43m
Age
since listed · data leaked

Status timeline

  1. ListedDec 11, 2022
  2. Data leakeddate unknown

At a glance

Group
Karakurt
Status
Data leaked
Country
Vietnam
Sector
Energy & Utilities
Listed on leak site
Dec 11, 2022
Data size
1.3 TB

About the victim

AI dossier — public-source company profile

Petrovietnam Technical Services Corporation (PTSC) is a member company of Vietnam Oil and Gas Group (PetroVietnam/PVN), established pursuant to Decision No. 458/TTg dated 24 November 1976 as part of the master plan to build a petroleum base in Vung Tau City, Vietnam. PTSC provides technical and engineering services to the oil and gas sector, operating as a key subsidiary within Vietnam's state-owned petroleum conglomerate.

Industry
Oil & Gas Technical Services
Address
Vung Tau City, Vietnam
Founded
1976

Attack summary

Severity: critical — 1.3 TB of confirmed exfiltrated data from a state-owned oil and gas services company tied to Vietnam's national petroleum group constitutes large-scale exfiltration of potentially sensitive operational, financial, and government-linked corporate data; data is marked as published.

Karakurt claims to have exfiltrated 1.3 TB of corporate data from PTSC and has published the data, offering it for download or review via their leak site.

critical

Data the group says was taken

AI dossier — extracted from the leak post
  • Corporate data (1.3 TB)

What the group claims

PTSC, a member of Vietnam Oil & Gas Group (PetroVietnam - PVN), was established on the implementation of Decision No. 458/TTg dated 24 November 1976 for the approval of the master plan to build a petroleum base in Vung Tau city. In this release we can offer you 1,3 TB of their corporate data. You will definitely enjoy!

Sources

Source

Indexed 4 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.

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Disclosure context

About Karakurt

Karakurt is a ransomware group that emerged in December 2022, operating primarily as a data extortion threat actor with financial motivations rather than traditional file encryption. The group's origin and affiliations remain largely undocumented by major cybersecurity agencies, though their operational patterns suggest they function as an independent entity rather than a confirmed ransomware-as-a-service operation. Karakurt employs data theft and extortion tactics, focusing on exfiltrating sensitive information from victim networks before demanding payment under threat of public disclosure, representing a pure extortion model that bypasses traditional encryption-based ransomware approaches. The group has targeted 74 known victims across multiple sectors, with particular focus on healthcare, education, manufacturing, energy, and professional services organizations, primarily affecting entities in the United States, United Kingdom, Germany, Singapore, and India. Based on available reporting from established cybersecurity agencies and researchers, Karakurt appears to remain active as of recent assessments, though comprehensive intelligence on their specific attack vectors, tools, and major campaigns remains limited in publicly documented sources from CISA, FBI, and major security research organizations. The group has been linked to 74 public disclosures across our corpus. First observed on a leak site on December 11, 2022; most recent post September 22, 2023. The operation is currently inactive.

Timeline of this disclosure

  • December 11, 2022PTSC listed by Karakurton the group's public leak site
Data size
1.3 TB

Other recent disclosures by Karakurt

Karakurt has been linked to 74 public victims on Darkfield. A sample of the most recent:

See the full Karakurt dossier →

Sector and geography

This disclosure adds to ransomware activity in the Energy & Utilities sector, which has 163 disclosures indexed across all operators we track. Geographically, PTSC is reported in Vietnam, a country with 14 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Karakurt means PTSC 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 Karakurt'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.