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Ransomware group profile · #276 by claimed victims

Hellogookie ransomware

HelloGookie is a rebrand of the HelloKitty ransomware group announced in April 2024, releasing previously stolen data from CD Projekt Red and Cisco; HelloKitty/HelloGookie has been active since 2020 with its highest-profile attack being the 2021 breach of CD Projekt Red.

Active First seen Apr 2024
3Victims claimed on leak sites
0Victims in the last 30 days
0Victims in the last 90 days
2Countries hit
1Leak-site URLs tracked, 0 online
19 Apr 2024Latest claim recorded

Victimology

Who Hellogookie claims to have breached, from 3 leak-site posts recorded by VULONE.

Claims per month last 12 months

Oct 2025: 0OctNov 2025: 0Dec 2025: 0Jan 2026: 0JanFeb 2026: 0Mar 2026: 0Apr 2026: 0AprMay 2026: 0Jun 2026: 0Jul 2026: 0JulAug 2026: 0Sep 2026: 0

Top sectors

Technology3

Top countries

Poland1
United States1

Latest claimed victims 3 most recent

VictimSectorCountryClaimed
Hey everyone! Some private keys here. hey everyone! some private keys here. Technology 19 Apr 2024
Hey cisco! cisco.com Technology US 19 Apr 2024
CD Projekt! cdprojektred.com Technology PL 19 Apr 2024

All 3 Hellogookie 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 Hellogookie 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 Hellogookie ransomware still active?
Hellogookie is tracked as active. The most recent leak-site claim VULONE recorded is dated 19 April 2024.
How many victims has Hellogookie claimed?
VULONE has recorded 3 leak-site victim claims attributed to Hellogookie since April 2024, across 2 countries and 1 sectors.
Which industries does Hellogookie target?
The sectors most often named on the Hellogookie leak site are Technology.
Which countries are most affected by Hellogookie?
Most Hellogookie victims recorded by VULONE are located in Poland, United States.
Where does VULONE get Hellogookie 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].