HelloKitty | Threat Level: high | Type: Ransomware

Cryptographic Identifiers

SHA2561144d0448fefe26f5b9db7e7a7522c9a46eded3a603daa903052373cecc92b27
MD5db804c3f55c5d09dace40c76c99cab52
File Typeexe
Size188.3 KB
First Seen2025-04-10
File Name1144d0448fefe26f5b9db7e7a7522c9a46eded3a603daa903052373cecc92b27
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: 1144d0448fefe26f5b9db7e7a7522c9a46eded3a603daa903052373cecc92b27
  • MD5: db804c3f55c5d09dace40c76c99cab52

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: 1144d0448fefe26f"
        threat_level = "high"
        first_seen = "2025-04-10"
    condition:
        hash.sha256(0, filesize) == "1144d0448fefe26f5b9db7e7a7522c9a46eded3a603daa903052373cecc92b27"
}

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 1144d0448fefe26f5b9db7e7a7522c9a46eded3a603daa903052373cecc92b27 # MD5 db804c3f55c5d09dace40c76c99cab52
TypeValueNote
sha256 1144d0448fefe26f5b9db7e7a7522c9a46eded3a603daa903052373cecc92b27 Sample:HelloKitty
md5 db804c3f55c5d09dace40c76c99cab52 Sample:HelloKitty
Tags
hellokittyransomwaremalwarehighsha256hash-analizi