WannaCry | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA25655f65c7a077407e09b5bf46c0d1885e88759583bb56ee3c5495804d0da127dab
MD53e90a82f5360cae528a12c76d22fe6a2
File Typeexe
Size5174.0 KB
First Seen2026-06-20
File Name55f65c7a077407e09b5bf46c0d1885e88759583bb56ee3c5495804d0da127dab
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: 55f65c7a077407e09b5bf46c0d1885e88759583bb56ee3c5495804d0da127dab
  • MD5: 3e90a82f5360cae528a12c76d22fe6a2

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: 55f65c7a077407e0"
        threat_level = "critical"
        first_seen = "2026-06-20"
    condition:
        hash.sha256(0, filesize) == "55f65c7a077407e09b5bf46c0d1885e88759583bb56ee3c5495804d0da127dab"
}

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 55f65c7a077407e09b5bf46c0d1885e88759583bb56ee3c5495804d0da127dab # MD5 3e90a82f5360cae528a12c76d22fe6a2
TypeValueNote
sha256 55f65c7a077407e09b5bf46c0d1885e88759583bb56ee3c5495804d0da127dab Sample:WannaCry
md5 3e90a82f5360cae528a12c76d22fe6a2 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