HelloKitty | Threat Level: high | Type: Ransomware

Cryptographic Identifiers

SHA256754f2022b72da704eb8636610c6d2ffcbdae9e8740555030a07c8c147387a537
MD56925354a71373955ac304b48e28fa09d
File Typeelf
Size47.7 KB
First Seen2021-12-22
File Name754f2022b72da704eb8636610c6d2ffcbdae9e8740555030a07c8c147387a537
Tagself, 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: 754f2022b72da704eb8636610c6d2ffcbdae9e8740555030a07c8c147387a537
  • MD5: 6925354a71373955ac304b48e28fa09d

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: 754f2022b72da704"
        threat_level = "high"
        first_seen = "2021-12-22"
    condition:
        hash.sha256(0, filesize) == "754f2022b72da704eb8636610c6d2ffcbdae9e8740555030a07c8c147387a537"
}

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 754f2022b72da704eb8636610c6d2ffcbdae9e8740555030a07c8c147387a537 # MD5 6925354a71373955ac304b48e28fa09d
TypeValueNote
sha256 754f2022b72da704eb8636610c6d2ffcbdae9e8740555030a07c8c147387a537 Sample:HelloKitty
md5 6925354a71373955ac304b48e28fa09d Sample:HelloKitty
Tags
hellokittyransomwaremalwarehighsha256hash-analizi