WannaCry | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256ba4015669d28f5517b55998833ea2c0690caa0a23beab77119426555827be461
MD58a0e9c1a8448f7e6c9ff26bc47ad4a1e
File Typeexe
Size5174.0 KB
First Seen2026-05-31
File Nameba4015669d28f5517b55998833ea2c0690caa0a23beab77119426555827be461
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: ba4015669d28f5517b55998833ea2c0690caa0a23beab77119426555827be461
  • MD5: 8a0e9c1a8448f7e6c9ff26bc47ad4a1e

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: ba4015669d28f551"
        threat_level = "critical"
        first_seen = "2026-05-31"
    condition:
        hash.sha256(0, filesize) == "ba4015669d28f5517b55998833ea2c0690caa0a23beab77119426555827be461"
}

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 ba4015669d28f5517b55998833ea2c0690caa0a23beab77119426555827be461 # MD5 8a0e9c1a8448f7e6c9ff26bc47ad4a1e
TypeValueNote
sha256 ba4015669d28f5517b55998833ea2c0690caa0a23beab77119426555827be461 Sample:WannaCry
md5 8a0e9c1a8448f7e6c9ff26bc47ad4a1e 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