WannaCry | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256ad4df92f352378948654b371e619072118f8e6eb3550a6d47ced2710ccf438c3
MD57cdea2100888c1cc3f1d4452c516f7cc
File Typeexe
Size5174.0 KB
First Seen2026-05-21
File Namead4df92f352378948654b371e619072118f8e6eb3550a6d47ced2710ccf438c3
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: ad4df92f352378948654b371e619072118f8e6eb3550a6d47ced2710ccf438c3
  • MD5: 7cdea2100888c1cc3f1d4452c516f7cc

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: ad4df92f35237894"
        threat_level = "critical"
        first_seen = "2026-05-21"
    condition:
        hash.sha256(0, filesize) == "ad4df92f352378948654b371e619072118f8e6eb3550a6d47ced2710ccf438c3"
}

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 ad4df92f352378948654b371e619072118f8e6eb3550a6d47ced2710ccf438c3 # MD5 7cdea2100888c1cc3f1d4452c516f7cc
TypeValueNote
sha256 ad4df92f352378948654b371e619072118f8e6eb3550a6d47ced2710ccf438c3 Sample:WannaCry
md5 7cdea2100888c1cc3f1d4452c516f7cc 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