HelloKitty | Threat Level: high | Type: Ransomware

Cryptographic Identifiers

SHA2568fb025d59e501a545cae40ef222ca22b5722fdd487cdefb3f2e4b0a8635f9bc2
MD5eab47cbf897c7e9c2dc1009e11d1d928
File Typeexe
Size477.5 KB
First Seen2025-04-10
File Name8fb025d59e501a545cae40ef222ca22b5722fdd487cdefb3f2e4b0a8635f9bc2
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: 8fb025d59e501a545cae40ef222ca22b5722fdd487cdefb3f2e4b0a8635f9bc2
  • MD5: eab47cbf897c7e9c2dc1009e11d1d928

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: 8fb025d59e501a54"
        threat_level = "high"
        first_seen = "2025-04-10"
    condition:
        hash.sha256(0, filesize) == "8fb025d59e501a545cae40ef222ca22b5722fdd487cdefb3f2e4b0a8635f9bc2"
}

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 8fb025d59e501a545cae40ef222ca22b5722fdd487cdefb3f2e4b0a8635f9bc2 # MD5 eab47cbf897c7e9c2dc1009e11d1d928
TypeValueNote
sha256 8fb025d59e501a545cae40ef222ca22b5722fdd487cdefb3f2e4b0a8635f9bc2 Sample:HelloKitty
md5 eab47cbf897c7e9c2dc1009e11d1d928 Sample:HelloKitty
Tags
hellokittyransomwaremalwarehighsha256hash-analizi