HelloKitty | Threat Level: high | Type: Ransomware

Cryptographic Identifiers

SHA2560e5f7737704c8f25b2b8157561be54a463057cd4d79c7e016c30a1cf6590a85c
MD51a79b6d169aac719c9323bc3ee4a8361
File Typeexe
Size249.5 KB
First Seen2025-04-10
File Name0e5f7737704c8f25b2b8157561be54a463057cd4d79c7e016c30a1cf6590a85c
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: 0e5f7737704c8f25b2b8157561be54a463057cd4d79c7e016c30a1cf6590a85c
  • MD5: 1a79b6d169aac719c9323bc3ee4a8361

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: 0e5f7737704c8f25"
        threat_level = "high"
        first_seen = "2025-04-10"
    condition:
        hash.sha256(0, filesize) == "0e5f7737704c8f25b2b8157561be54a463057cd4d79c7e016c30a1cf6590a85c"
}

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 0e5f7737704c8f25b2b8157561be54a463057cd4d79c7e016c30a1cf6590a85c # MD5 1a79b6d169aac719c9323bc3ee4a8361
TypeValueNote
sha256 0e5f7737704c8f25b2b8157561be54a463057cd4d79c7e016c30a1cf6590a85c Sample:HelloKitty
md5 1a79b6d169aac719c9323bc3ee4a8361 Sample:HelloKitty
Tags
hellokittyransomwaremalwarehighsha256hash-analizi