WannaCry | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256a50479b466345daa130377ec3758caf13e2804495868cecfab52a32b5d72a2c5
MD5837ca34719a266412312ef8c9ff177fb
File Typeexe
Size1408.0 KB
First Seen2022-10-10
File Namea50479b466345daa130377ec3758caf13e2804495868cecfab52a32b5d72a2c5
Tagsexe, Ransomware, WannaCry

Malware Family: WannaCry

WannaCry, küresel saldırıdır.

TypeRansomware
Programming LanguageC
Target PlatformWindows
C2 Protocol
PurposeSMB ransomware
First Seen Year2017
AliasesWannaCrypt

Threat Indicators (IOC)

  • SHA256: a50479b466345daa130377ec3758caf13e2804495868cecfab52a32b5d72a2c5
  • MD5: 837ca34719a266412312ef8c9ff177fb

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: a50479b466345daa"
        threat_level = "critical"
        first_seen = "2022-10-10"
    condition:
        hash.sha256(0, filesize) == "a50479b466345daa130377ec3758caf13e2804495868cecfab52a32b5d72a2c5"
}

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 a50479b466345daa130377ec3758caf13e2804495868cecfab52a32b5d72a2c5 # MD5 837ca34719a266412312ef8c9ff177fb
TypeValueNote
sha256 a50479b466345daa130377ec3758caf13e2804495868cecfab52a32b5d72a2c5 Sample:WannaCry
md5 837ca34719a266412312ef8c9ff177fb 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