WannaCry | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA25638de3753e722f27b4293ec6bb7b8543687c1e36b0066919d3f537bbd4409f4b7
MD586c032a003fd34beaffa2573a0e58d0c
File Typeexe
Size3636.0 KB
First Seen2022-10-12
File Name38de3753e722f27b4293ec6bb7b8543687c1e36b0066919d3f537bbd4409f4b7
TagsWannaCry

Malware Family: WannaCry

WannaCry, küresel saldırıdır.

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

Threat Indicators (IOC)

  • SHA256: 38de3753e722f27b4293ec6bb7b8543687c1e36b0066919d3f537bbd4409f4b7
  • MD5: 86c032a003fd34beaffa2573a0e58d0c

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: 38de3753e722f27b"
        threat_level = "critical"
        first_seen = "2022-10-12"
    condition:
        hash.sha256(0, filesize) == "38de3753e722f27b4293ec6bb7b8543687c1e36b0066919d3f537bbd4409f4b7"
}

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 38de3753e722f27b4293ec6bb7b8543687c1e36b0066919d3f537bbd4409f4b7 # MD5 86c032a003fd34beaffa2573a0e58d0c
TypeValueNote
sha256 38de3753e722f27b4293ec6bb7b8543687c1e36b0066919d3f537bbd4409f4b7 Sample:WannaCry
md5 86c032a003fd34beaffa2573a0e58d0c 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