HelloKitty | Threat Level: high | Type: Ransomware

Cryptographic Identifiers

SHA25600e6db8d116020d7dda556e0cdf9e0d4c9e57bb8d566c0e702a23ec679a46b51
MD550363f811d630e8e3ceb84f6f3db066e
File Typeexe
Size165.0 KB
First Seen2025-04-10
File Name00e6db8d116020d7dda556e0cdf9e0d4c9e57bb8d566c0e702a23ec679a46b51
Tagsexe, HelloKitty, Ransomware

Malware Family: HelloKitty

HelloKitty, CD Projekt Red'e saldırdı.

TypeRansomware
Programming LanguageC++
Target PlatformWindows/Linux
C2 Protocol
PurposeOyun şirketi saldırısı
First Seen Year2020
AliasesFiveHands

Threat Indicators (IOC)

  • SHA256: 00e6db8d116020d7dda556e0cdf9e0d4c9e57bb8d566c0e702a23ec679a46b51
  • MD5: 50363f811d630e8e3ceb84f6f3db066e

You can verify all hash values of this sample on VirusTotal.

System Cleanup Guide

  1. Sistemi ağdan DERHAL ayırın — diğer cihazlara yayılmayı durdurun
  2. Do not pay the ransom — there is no guarantee your files will be restored
  3. Quarantine the affected drives
  4. Kullanılan fidye yazılımı ailesini belirleyin (nomoreransom.org)
  5. Try available decryptor tools (the NoMoreRansom project)
  6. Report the incident to the authorities (cybercrime unit)
  7. Temiz bir yedekten kurtarın; yedeğiniz yoksa sürücüyü saklayın

YARA Rule Hints

rule HelloKitty_SHA256 {
    meta:
        description = "HelloKitty sample: 00e6db8d116020d7"
        threat_level = "high"
        first_seen = "2025-04-10"
    condition:
        hash.sha256(0, filesize) == "00e6db8d116020d7dda556e0cdf9e0d4c9e57bb8d566c0e702a23ec679a46b51"
}

HelloKitty — Malware Profile

HelloKitty (DeathRansom/FiveHands) RaaS. Tor .onion C2. WMI Win32_ShadowCopy silme. VMware ESXi hedefi. CD Projekt Red.

Malware Type
Ransomware
Programming Language
C++
C2 Protocol
Target Systems
Windows/Linux
Also Known As (AKA)
FiveHands

Capabilities & Behavior

Dosya Şifreleme (AES/RSA)
Gölge Kopya Silme
Yedek Kaldırma
Fidye Notu Oluşturma
Kalıcılık Sağlama
Ağ Paylaşımı Şifreleme
Anti-Analiz Teknikleri
Çift Gasp (Data Leak)

IOC List (2 indicators)

IOC — HelloKitty
# SHA256 00e6db8d116020d7dda556e0cdf9e0d4c9e57bb8d566c0e702a23ec679a46b51 # MD5 50363f811d630e8e3ceb84f6f3db066e
TypeValueNote
sha256 00e6db8d116020d7dda556e0cdf9e0d4c9e57bb8d566c0e702a23ec679a46b51 Sample:HelloKitty
md5 50363f811d630e8e3ceb84f6f3db066e Sample:HelloKitty
Tags
hellokittyransomwaremalwarehighsha256hash-analizi