HelloKitty | Threat Level: high | Type: Ransomware

Cryptographic Identifiers

SHA256c7275b4ed6a04bec1e7e1ed3f241dd4b6ce11d230ae06b00d9fb3bbfcd88f752
MD5eafdcf0d488f08716764a0cbfdc27b46
File Typeexe
Size73.5 KB
First Seen2025-04-10
File Namec7275b4ed6a04bec1e7e1ed3f241dd4b6ce11d230ae06b00d9fb3bbfcd88f752
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: c7275b4ed6a04bec1e7e1ed3f241dd4b6ce11d230ae06b00d9fb3bbfcd88f752
  • MD5: eafdcf0d488f08716764a0cbfdc27b46

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: c7275b4ed6a04bec"
        threat_level = "high"
        first_seen = "2025-04-10"
    condition:
        hash.sha256(0, filesize) == "c7275b4ed6a04bec1e7e1ed3f241dd4b6ce11d230ae06b00d9fb3bbfcd88f752"
}

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 c7275b4ed6a04bec1e7e1ed3f241dd4b6ce11d230ae06b00d9fb3bbfcd88f752 # MD5 eafdcf0d488f08716764a0cbfdc27b46
TypeValueNote
sha256 c7275b4ed6a04bec1e7e1ed3f241dd4b6ce11d230ae06b00d9fb3bbfcd88f752 Sample:HelloKitty
md5 eafdcf0d488f08716764a0cbfdc27b46 Sample:HelloKitty
Tags
hellokittyransomwaremalwarehighsha256hash-analizi