HelloKitty | Threat Level: high | Type: Ransomware

Cryptographic Identifiers

SHA2567bdb0be5e4c376bbb3533b8872f3ba72b7876ef261b94f6799010f55160d8adb
MD544c36bc55af58eb506d1760ab608402b
File Typeexe
Size462.5 KB
First Seen2025-04-10
File Name7bdb0be5e4c376bbb3533b8872f3ba72b7876ef261b94f6799010f55160d8adb
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: 7bdb0be5e4c376bbb3533b8872f3ba72b7876ef261b94f6799010f55160d8adb
  • MD5: 44c36bc55af58eb506d1760ab608402b

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: 7bdb0be5e4c376bb"
        threat_level = "high"
        first_seen = "2025-04-10"
    condition:
        hash.sha256(0, filesize) == "7bdb0be5e4c376bbb3533b8872f3ba72b7876ef261b94f6799010f55160d8adb"
}

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 7bdb0be5e4c376bbb3533b8872f3ba72b7876ef261b94f6799010f55160d8adb # MD5 44c36bc55af58eb506d1760ab608402b
TypeValueNote
sha256 7bdb0be5e4c376bbb3533b8872f3ba72b7876ef261b94f6799010f55160d8adb Sample:HelloKitty
md5 44c36bc55af58eb506d1760ab608402b Sample:HelloKitty
Tags
hellokittyransomwaremalwarehighsha256hash-analizi