HelloKitty | Threat Level: high | Type: Ransomware

Cryptographic Identifiers

SHA25610887d13dba1f83ef34e047455a04416d25a83079a7f3798ce3483e0526e3768
MD5d96adf82f061b1a6c80699364a1e3208
File Typeexe
Size153.0 KB
First Seen2025-04-10
File Name10887d13dba1f83ef34e047455a04416d25a83079a7f3798ce3483e0526e3768
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: 10887d13dba1f83ef34e047455a04416d25a83079a7f3798ce3483e0526e3768
  • MD5: d96adf82f061b1a6c80699364a1e3208

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: 10887d13dba1f83e"
        threat_level = "high"
        first_seen = "2025-04-10"
    condition:
        hash.sha256(0, filesize) == "10887d13dba1f83ef34e047455a04416d25a83079a7f3798ce3483e0526e3768"
}

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 10887d13dba1f83ef34e047455a04416d25a83079a7f3798ce3483e0526e3768 # MD5 d96adf82f061b1a6c80699364a1e3208
TypeValueNote
sha256 10887d13dba1f83ef34e047455a04416d25a83079a7f3798ce3483e0526e3768 Sample:HelloKitty
md5 d96adf82f061b1a6c80699364a1e3208 Sample:HelloKitty
Tags
hellokittyransomwaremalwarehighsha256hash-analizi