HelloKitty | Threat Level: high | Type: Ransomware

Cryptographic Identifiers

SHA25603712d5e96fdb8f0e110ffb1f5448e8e963d008de31ed69b77a5f78a5ac25533
MD528c5c992809fecdc82509dab19c0d90a
File Typeexe
Size73.0 KB
First Seen2025-04-10
File Name03712d5e96fdb8f0e110ffb1f5448e8e963d008de31ed69b77a5f78a5ac25533
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: 03712d5e96fdb8f0e110ffb1f5448e8e963d008de31ed69b77a5f78a5ac25533
  • MD5: 28c5c992809fecdc82509dab19c0d90a

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: 03712d5e96fdb8f0"
        threat_level = "high"
        first_seen = "2025-04-10"
    condition:
        hash.sha256(0, filesize) == "03712d5e96fdb8f0e110ffb1f5448e8e963d008de31ed69b77a5f78a5ac25533"
}

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 03712d5e96fdb8f0e110ffb1f5448e8e963d008de31ed69b77a5f78a5ac25533 # MD5 28c5c992809fecdc82509dab19c0d90a
TypeValueNote
sha256 03712d5e96fdb8f0e110ffb1f5448e8e963d008de31ed69b77a5f78a5ac25533 Sample:HelloKitty
md5 28c5c992809fecdc82509dab19c0d90a Sample:HelloKitty
Tags
hellokittyransomwaremalwarehighsha256hash-analizi