WannaCry | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA25641c710a185e6a5e81c76f71d078c377bc3852381d712cbb1d409e9ab8647569e
MD5b6f366e487fbf740c0479a8c286d7cd8
File Typeexe
Size5174.0 KB
First Seen2026-06-21
File Name41c710a185e6a5e81c76f71d078c377bc3852381d712cbb1d409e9ab8647569e
Tagsdionaea, exe, WannaCry

Malware Family: WannaCry

WannaCry, 200K+ sistemi etkiledi.

TypeRansomware
Programming LanguageC
Target PlatformWindows
C2 Protocol
PurposeKüresel SMB saldırısı
First Seen Year2017
AliasesWannaCrypt

Threat Indicators (IOC)

  • SHA256: 41c710a185e6a5e81c76f71d078c377bc3852381d712cbb1d409e9ab8647569e
  • MD5: b6f366e487fbf740c0479a8c286d7cd8

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 WannaCry_SHA256 {
    meta:
        description = "WannaCry sample: 41c710a185e6a5e8"
        threat_level = "critical"
        first_seen = "2026-06-21"
    condition:
        hash.sha256(0, filesize) == "41c710a185e6a5e81c76f71d078c377bc3852381d712cbb1d409e9ab8647569e"
}

WannaCry — Malware Profile

WannaCry EternalBlue SMB ransomware. 2017 NSA açık. RSA public key hardcoded. ChangeServiceConfig2A servis kalıcılığı. 150+ ülke.

Malware Type
Ransomware
Programming Language
C
C2 Protocol
Target Systems
Windows
Also Known As (AKA)
WannaCrypt

Technical Details

EternalBlue SMB exploit (CVE-2017-0144), DoublePulsar backdoor, kill-switch domain (registrasyonla durduruldu), RSA-2048 + AES-128-CBC sifreleme, .WNCRY dosya uzantisi, Tor C2

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 — WannaCry
# SHA256 41c710a185e6a5e81c76f71d078c377bc3852381d712cbb1d409e9ab8647569e # MD5 b6f366e487fbf740c0479a8c286d7cd8
TypeValueNote
sha256 41c710a185e6a5e81c76f71d078c377bc3852381d712cbb1d409e9ab8647569e Sample:WannaCry
md5 b6f366e487fbf740c0479a8c286d7cd8 Sample:WannaCry

C2 Servers (3 recorded servers for this family)

Address Type Port Protocol Status Country
iuqerfsodp9ifjaposdfjhgosurijfaewrwergwea.com domain 80 TCP sinkholed —
www.iuqerfsodp9ifjaposdfjhgosurijfaewrwergwea.com domain 443 TCP sinkholed —
www.iuqerfsodp9ifjaposdfjhgosurijfaewrwergwff.com domain 443 TCP sinkholed —

C2 addresses are provided only from malware samples manually verified by the KEYDAL team. Commercial use is prohibited.

Tags
wannacryransomwaremalwarecriticalsha256hash-analizi