HelloKitty | Threat Level: high | Type: Ransomware

Cryptographic Identifiers

SHA256556e5cb5e4e77678110961c8d9260a726a363e00bf8d278e5302cb4bfccc3eed
MD5f597d74b84929ded948fc42c6f6210e5
File Typeelf
Size80.5 KB
First Seen2023-07-25
File Name556e5cb5e4e77678110961c8d9260a726a363e00bf8d278e5302cb4bfccc3eed
Tagself, HelloKitty, linux, malware, Ransomware, ViceSociety

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: 556e5cb5e4e77678110961c8d9260a726a363e00bf8d278e5302cb4bfccc3eed
  • MD5: f597d74b84929ded948fc42c6f6210e5

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: 556e5cb5e4e77678"
        threat_level = "high"
        first_seen = "2023-07-25"
    condition:
        hash.sha256(0, filesize) == "556e5cb5e4e77678110961c8d9260a726a363e00bf8d278e5302cb4bfccc3eed"
}

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 556e5cb5e4e77678110961c8d9260a726a363e00bf8d278e5302cb4bfccc3eed # MD5 f597d74b84929ded948fc42c6f6210e5
TypeValueNote
sha256 556e5cb5e4e77678110961c8d9260a726a363e00bf8d278e5302cb4bfccc3eed Sample:HelloKitty
md5 f597d74b84929ded948fc42c6f6210e5 Sample:HelloKitty
Tags
hellokittyransomwaremalwarehighsha256hash-analizi