WannaCry | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256a65d6a1be5d9f53bef2f77af2a9a9dcf74ef53e0dcfea7bea8a28f6f959f221f
MD5593fcda82f406f19f5661d1ad479feb1
File Typedll
Size5144.0 KB
First Seen2026-03-12
File Namea65d6a1be5d9f53bef2f77af2a9a9dcf74ef53e0dcfea7bea8a28f6f959f221f
Tagsdll, 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: a65d6a1be5d9f53bef2f77af2a9a9dcf74ef53e0dcfea7bea8a28f6f959f221f
  • MD5: 593fcda82f406f19f5661d1ad479feb1

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: a65d6a1be5d9f53b"
        threat_level = "critical"
        first_seen = "2026-03-12"
    condition:
        hash.sha256(0, filesize) == "a65d6a1be5d9f53bef2f77af2a9a9dcf74ef53e0dcfea7bea8a28f6f959f221f"
}

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 a65d6a1be5d9f53bef2f77af2a9a9dcf74ef53e0dcfea7bea8a28f6f959f221f # MD5 593fcda82f406f19f5661d1ad479feb1
TypeValueNote
sha256 a65d6a1be5d9f53bef2f77af2a9a9dcf74ef53e0dcfea7bea8a28f6f959f221f Sample:WannaCry
md5 593fcda82f406f19f5661d1ad479feb1 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