HelloKitty | Threat Level: high | Type: Ransomware

Cryptographic Identifiers

SHA25601bfeed1000907ad1063e513454ee73eecf2d613386e38473640fc5b88ac1090
MD5e7ad64df3eea1239f735f790c17db441
File Typeexe
Size142.5 KB
First Seen2025-04-10
File Name01bfeed1000907ad1063e513454ee73eecf2d613386e38473640fc5b88ac1090
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: 01bfeed1000907ad1063e513454ee73eecf2d613386e38473640fc5b88ac1090
  • MD5: e7ad64df3eea1239f735f790c17db441

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: 01bfeed1000907ad"
        threat_level = "high"
        first_seen = "2025-04-10"
    condition:
        hash.sha256(0, filesize) == "01bfeed1000907ad1063e513454ee73eecf2d613386e38473640fc5b88ac1090"
}

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 01bfeed1000907ad1063e513454ee73eecf2d613386e38473640fc5b88ac1090 # MD5 e7ad64df3eea1239f735f790c17db441
TypeValueNote
sha256 01bfeed1000907ad1063e513454ee73eecf2d613386e38473640fc5b88ac1090 Sample:HelloKitty
md5 e7ad64df3eea1239f735f790c17db441 Sample:HelloKitty
Tags
hellokittyransomwaremalwarehighsha256hash-analizi