HelloKitty | Threat Level: high | Type: Ransomware

Cryptographic Identifiers

SHA25652dace403e8f9b4f7ea20c0c3565fa11b6953b404a7d49d63af237a57b36fd2a
MD51b0b9e4cddcbcb02affe9c8124855e58
File Typeexe
Size249.5 KB
First Seen2025-04-10
File Name52dace403e8f9b4f7ea20c0c3565fa11b6953b404a7d49d63af237a57b36fd2a
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: 52dace403e8f9b4f7ea20c0c3565fa11b6953b404a7d49d63af237a57b36fd2a
  • MD5: 1b0b9e4cddcbcb02affe9c8124855e58

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: 52dace403e8f9b4f"
        threat_level = "high"
        first_seen = "2025-04-10"
    condition:
        hash.sha256(0, filesize) == "52dace403e8f9b4f7ea20c0c3565fa11b6953b404a7d49d63af237a57b36fd2a"
}

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 52dace403e8f9b4f7ea20c0c3565fa11b6953b404a7d49d63af237a57b36fd2a # MD5 1b0b9e4cddcbcb02affe9c8124855e58
TypeValueNote
sha256 52dace403e8f9b4f7ea20c0c3565fa11b6953b404a7d49d63af237a57b36fd2a Sample:HelloKitty
md5 1b0b9e4cddcbcb02affe9c8124855e58 Sample:HelloKitty
Tags
hellokittyransomwaremalwarehighsha256hash-analizi