HelloKitty | Threat Level: high | Type: Ransomware

Cryptographic Identifiers

SHA256513266fb23782f2bff65b6e8f059c4f4bb99562610c44110c4a463338f91d425
MD5e931ab5882d62ea08e498d90e2e11ad0
File Typeexe
Size477.0 KB
First Seen2025-04-10
File Name513266fb23782f2bff65b6e8f059c4f4bb99562610c44110c4a463338f91d425
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: 513266fb23782f2bff65b6e8f059c4f4bb99562610c44110c4a463338f91d425
  • MD5: e931ab5882d62ea08e498d90e2e11ad0

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: 513266fb23782f2b"
        threat_level = "high"
        first_seen = "2025-04-10"
    condition:
        hash.sha256(0, filesize) == "513266fb23782f2bff65b6e8f059c4f4bb99562610c44110c4a463338f91d425"
}

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 513266fb23782f2bff65b6e8f059c4f4bb99562610c44110c4a463338f91d425 # MD5 e931ab5882d62ea08e498d90e2e11ad0
TypeValueNote
sha256 513266fb23782f2bff65b6e8f059c4f4bb99562610c44110c4a463338f91d425 Sample:HelloKitty
md5 e931ab5882d62ea08e498d90e2e11ad0 Sample:HelloKitty
Tags
hellokittyransomwaremalwarehighsha256hash-analizi