HelloKitty | Threat Level: high | Type: Ransomware

Cryptographic Identifiers

SHA256e22137c5b034e0bf022ee389b607d3e0cffdbb25355918135f1536a7e510442b
MD5dedaf87d9f14524ec3fe7c3d2e304bf5
File Typeexe
Size477.0 KB
First Seen2025-04-10
File Namee22137c5b034e0bf022ee389b607d3e0cffdbb25355918135f1536a7e510442b
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: e22137c5b034e0bf022ee389b607d3e0cffdbb25355918135f1536a7e510442b
  • MD5: dedaf87d9f14524ec3fe7c3d2e304bf5

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: e22137c5b034e0bf"
        threat_level = "high"
        first_seen = "2025-04-10"
    condition:
        hash.sha256(0, filesize) == "e22137c5b034e0bf022ee389b607d3e0cffdbb25355918135f1536a7e510442b"
}

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 e22137c5b034e0bf022ee389b607d3e0cffdbb25355918135f1536a7e510442b # MD5 dedaf87d9f14524ec3fe7c3d2e304bf5
TypeValueNote
sha256 e22137c5b034e0bf022ee389b607d3e0cffdbb25355918135f1536a7e510442b Sample:HelloKitty
md5 dedaf87d9f14524ec3fe7c3d2e304bf5 Sample:HelloKitty
Tags
hellokittyransomwaremalwarehighsha256hash-analizi