HelloKitty | Threat Level: high | Type: Ransomware

Cryptographic Identifiers

SHA256dc007e71085297883ca68a919e37687427b7e6db0c24ca014c148f226d8dd98f
MD56c849920155f48d4b4aafce0fc49eb5b
File Typeexe
Size249.5 KB
First Seen2025-04-10
File Namedc007e71085297883ca68a919e37687427b7e6db0c24ca014c148f226d8dd98f
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: dc007e71085297883ca68a919e37687427b7e6db0c24ca014c148f226d8dd98f
  • MD5: 6c849920155f48d4b4aafce0fc49eb5b

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: dc007e7108529788"
        threat_level = "high"
        first_seen = "2025-04-10"
    condition:
        hash.sha256(0, filesize) == "dc007e71085297883ca68a919e37687427b7e6db0c24ca014c148f226d8dd98f"
}

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 dc007e71085297883ca68a919e37687427b7e6db0c24ca014c148f226d8dd98f # MD5 6c849920155f48d4b4aafce0fc49eb5b
TypeValueNote
sha256 dc007e71085297883ca68a919e37687427b7e6db0c24ca014c148f226d8dd98f Sample:HelloKitty
md5 6c849920155f48d4b4aafce0fc49eb5b Sample:HelloKitty
Tags
hellokittyransomwaremalwarehighsha256hash-analizi