HelloKitty | Threat Level: high | Type: Ransomware

Cryptographic Identifiers

SHA256f1b331ce095f866190320d808a3be8176209ad0f8a9422d6d711431b3a87aacc
MD5c68e78bf5abffbc81478b0b62dfb7d03
File Typeexe
Size142.5 KB
First Seen2021-08-14
File Namef1b331ce095f866190320d808a3be8176209ad0f8a9422d6d711431b3a87aacc.bin
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: f1b331ce095f866190320d808a3be8176209ad0f8a9422d6d711431b3a87aacc
  • MD5: c68e78bf5abffbc81478b0b62dfb7d03

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: f1b331ce095f8661"
        threat_level = "high"
        first_seen = "2021-08-14"
    condition:
        hash.sha256(0, filesize) == "f1b331ce095f866190320d808a3be8176209ad0f8a9422d6d711431b3a87aacc"
}

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 f1b331ce095f866190320d808a3be8176209ad0f8a9422d6d711431b3a87aacc # MD5 c68e78bf5abffbc81478b0b62dfb7d03
TypeValueNote
sha256 f1b331ce095f866190320d808a3be8176209ad0f8a9422d6d711431b3a87aacc Sample:HelloKitty
md5 c68e78bf5abffbc81478b0b62dfb7d03 Sample:HelloKitty
Tags
hellokittyransomwaremalwarehighsha256hash-analizi