WannaCry | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA2564278571b3070555e5b1658fdffaa35b7c4fc1f810b4088969933106a3bc6a0a5
MD577c9bc1342fa2b84aa29583f08d6051d
File Typedll
Size5144.0 KB
First Seen2026-03-11
File Name4278571b3070555e5b1658fdffaa35b7c4fc1f810b4088969933106a3bc6a0a5
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: 4278571b3070555e5b1658fdffaa35b7c4fc1f810b4088969933106a3bc6a0a5
  • MD5: 77c9bc1342fa2b84aa29583f08d6051d

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: 4278571b3070555e"
        threat_level = "critical"
        first_seen = "2026-03-11"
    condition:
        hash.sha256(0, filesize) == "4278571b3070555e5b1658fdffaa35b7c4fc1f810b4088969933106a3bc6a0a5"
}

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 4278571b3070555e5b1658fdffaa35b7c4fc1f810b4088969933106a3bc6a0a5 # MD5 77c9bc1342fa2b84aa29583f08d6051d
TypeValueNote
sha256 4278571b3070555e5b1658fdffaa35b7c4fc1f810b4088969933106a3bc6a0a5 Sample:WannaCry
md5 77c9bc1342fa2b84aa29583f08d6051d 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