Ransomware group profile · #235 by claimed victims

Rancoz ransomware

Rancoz is a Windows-targeting ransomware strain first observed in November 2022 that appends the ".rec_rans" extension to encrypted files, considered a Vice Society copycat, deployed against a small number of organizations using double extortion and linked to the same developer as the "Buddy" ransomware.

Active First seen May 2023

6Victims claimed on leak sites

0Victims in the last 30 days

0Victims in the last 90 days

0Countries hit

1Leak-site URLs tracked, 0 online

3 Sep 2023Latest claim recorded

Victimology

Who Rancoz claims to have breached, from 6 leak-site posts recorded by VULONE.

Claims per month last 12 months

Top sectors

Manufacturing3

Hospitality1

Professional Services1

Technology1

Top countries

No country data yet.

Latest claimed victims 6 most recent

Victim	Sector	Country	Claimed
DDB Unlimited (ddbunlimited.com) ddbunlimited.com	Manufacturing	—	3 Sep 2023
Rick Ramos Law (rickramoslaw.com) rickramoslaw.com	Professional Services	—	3 Sep 2023
Industrial Heat Transfer (iht-inc.com) iht-inc.com	Manufacturing	—	7 Jul 2023
Air Comfort (aircomfort.ac) aircomfort.ac	Hospitality	—	14 Jun 2023
RIC Electronics (ricelectronics.com) ricelectronics.com	Manufacturing	—	5 May 2023
TrueLogic (truelogiccompany.com) truelogiccompany.com	Technology	—	5 May 2023

All 6 Rancoz victims, searchable

Full victim list with claim posts, domains, timing and exports, plus the negotiation chats and leak-site screenshots VULONE archives for this crew.

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Tactics, techniques and procedures

ATT&CK technique mapping for Rancoz is in progress. Victimology, infrastructure status and leak-site tracking are live above.

Indicators, detections and the full playbook

Hashes, C2 addresses, onion services, Sigma and YARA detections per technique, and the negotiation transcripts are available to signed-in analysts.

See full IOCs

Frequently asked

Is Rancoz ransomware still active?

Rancoz is tracked as active. The most recent leak-site claim VULONE recorded is dated 3 September 2023.

How many victims has Rancoz claimed?

VULONE has recorded 6 leak-site victim claims attributed to Rancoz since May 2023, across 0 countries and 4 sectors.

Which industries does Rancoz target?

The sectors most often named on the Rancoz leak site are Manufacturing, Hospitality, Professional Services.

Which countries are most affected by Rancoz?

Country data for Rancoz victims is not yet available.

Where does VULONE get Rancoz victim data?

Claims are collected continuously from the group's own leak sites and cross-checked with ransomware.live and RansomLook. A claim is the group's assertion, not a confirmed breach.

Other ransomware groups

Victim claims are collected from leak sites and enrichment partners (ransomware.live, RansomLook) and represent the group's own assertions, not confirmed breaches. Profile last updated 16 September 2026. Questions or corrections: [email protected].