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КУБ2Б

listed as qb2b.ru · Claimed by Lv · listed 3 years ago

31m
Age
since listed · data leaked

Status timeline

  1. ListedDec 20, 2023
  2. Data leakeddate unknown

At a glance

Group
Lv
Status
Data leaked
Country
Russia
Sector
Business Services
Listed on leak site
Dec 20, 2023

About the victim

AI dossier — public-source company profile

КУБ2Б is a Moscow-based accounting outsourcing firm providing bookkeeping, tax consulting, and financial management services to small and medium-sized Russian businesses. Founded in 2017, the company serves over 1,000 clients across Russia and employs a team of approximately 5 professionals, positioning itself as a cost-effective alternative to in-house accountants.

Industry
Accounting & Bookkeeping Services
Address
Moscow, Russia
Employees
5-10
Founded
2017

Attack summary

Severity: high — Confirmed exfiltration of regulated financial and banking data from an accounting services provider with access to client PII and banking details. The victim manages finances for 1,000+ Russian businesses, creating significant downstream exposure.

The Lv group claims to have exfiltrated confidential client data including banking information due to weak information security and IT personnel. The group threatens to publish all confidential information on their site and mirrors.

high

Data the group says was taken

AI dossier — extracted from the leak post
  • Client banking data
  • Confidential business records
  • Financial documentation
  • Tax records
  • Client account information

What the group claims

Компания занимается преимущественно бухгалтерским обслуживанием организаций малого бизнеса.Имеет хорошую репутацию в регионе.Проблемы информационной безопасности и слабый ИТ персонал ставят под угрозу данные клиентов,в том числе банковские.Вся конфиденциальная информация будет опубликована на нашем сайте и его зеркалах.

Sources

Source

Indexed 3 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 Lv

Lv is a financially motivated ransomware group that emerged in November 2021, operating with relatively low visibility compared to major ransomware families but maintaining consistent activity across multiple regions and sectors. The group's country of origin and specific affiliations remain undocumented in public threat intelligence reporting, though their targeting patterns suggest they operate independently rather than as part of a larger ransomware-as-a-service ecosystem. Limited public documentation exists regarding Lv's specific attack methodology, initial access vectors, or technical capabilities, though their successful compromise of 115 documented victims across diverse sectors indicates they employ conventional ransomware deployment techniques. The group has demonstrated a preference for targeting critical infrastructure and business services, with notable geographic focus on Russia, France, Malaysia, the United States, and the Netherlands, spanning sectors including energy, telecommunications, business services, media, and non-profit organizations. Current intelligence suggests Lv remains active as of recent reporting, though the group maintains a lower profile than prominent ransomware families and has not been subject to major law enforcement disruption operations. The group has been linked to 115 public disclosures across our corpus. First observed on a leak site on November 22, 2021; most recent post March 13, 2024. The operation is currently inactive.

Timeline of this disclosure

  • December 20, 2023qb2b.ru listed by Lvon the group's public leak site

Other recent disclosures by Lv

Lv has been linked to 115 public victims on Darkfield. A sample of the most recent:

See the full Lv dossier →

Sector and geography

This disclosure adds to ransomware activity in the Business Services sector, which has 3,796 disclosures indexed across all operators we track. Geographically, qb2b.ru is reported in Russia, a country with 63 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Lv means qb2b.ru 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 Lv'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.