HelloKitty | Threat Level: high | Type: Ransomware

Cryptographic Identifiers

SHA256bdb19d9eb19343708fbcc36acfaa91699e89d68643c75bf90c6d1e57adaf0d3d
MD5019b65ccaabcf519b65645284966db57
File Typeexe
Size153.0 KB
First Seen2025-04-10
File Namebdb19d9eb19343708fbcc36acfaa91699e89d68643c75bf90c6d1e57adaf0d3d
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: bdb19d9eb19343708fbcc36acfaa91699e89d68643c75bf90c6d1e57adaf0d3d
  • MD5: 019b65ccaabcf519b65645284966db57

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: bdb19d9eb1934370"
        threat_level = "high"
        first_seen = "2025-04-10"
    condition:
        hash.sha256(0, filesize) == "bdb19d9eb19343708fbcc36acfaa91699e89d68643c75bf90c6d1e57adaf0d3d"
}

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 bdb19d9eb19343708fbcc36acfaa91699e89d68643c75bf90c6d1e57adaf0d3d # MD5 019b65ccaabcf519b65645284966db57
TypeValueNote
sha256 bdb19d9eb19343708fbcc36acfaa91699e89d68643c75bf90c6d1e57adaf0d3d Sample:HelloKitty
md5 019b65ccaabcf519b65645284966db57 Sample:HelloKitty
Tags
hellokittyransomwaremalwarehighsha256hash-analizi