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Threat Group Cards: A Threat Actor Encyclopedia

Tool: HELLOKITTY

Names	HELLOKITTY HelloKitty KittyCrypt
Category	Malware
Type	Ransomware, Big Game Hunting
Description	(FireEye) HELLOKITTY ransomware—used to target Polish video game developer CD Projekt Red—is reportedly built from DEATHRANSOM. HELLOKITTY is named after a mutex named ‘HELLOKITTYMutex,’ used when the malware executable is launched
Information	<https://www.fireeye.com/blog/threat-research/2021/04/unc2447-sombrat-and-fivehands-ransomware-sophisticated-financial-threat.html> <https://www.bleepingcomputer.com/news/security/HELLOKITTY-ransomware-behind-cd-projekt-red-cyberattack-data-theft/> <https://www.bleepingcomputer.com/news/security/hellokitty-ransomware-is-targeting-vulnerable-sonicwall-devices/> <https://www.ic3.gov/Media/News/2021/211029.pdf> <https://www.bleepingcomputer.com/news/security/hellokitty-ransomware-source-code-leaked-on-hacking-forum/> <https://blog.barracuda.com/2024/04/24/hellokitty--hellogookie--hello--lockbit>
MITRE ATT&CK	<https://attack.mitre.org/software/S0617/>
Malpedia	<https://malpedia.caad.fkie.fraunhofer.de/details/win.hellokitty> <https://malpedia.caad.fkie.fraunhofer.de/details/elf.hellokitty>
Playbook	<https://pan-unit42.github.io/playbook_viewer/?pb=hellokitty-ransomware>

Last change to this tool card: 18 June 2024

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All groups using tool HELLOKITTY

Changed	Name	Country	Observed
APT groups
	UNC2447	[Unknown]	2020

1 group listed (1 APT, 0 other, 0 unknown)

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