WannaCry | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256780bb152049a5921fabbe0de066b53c36bf45d895b60b1651e35c69052e6703d
MD5edf913f2d9993f003e5fe25be9a48929
File Typeexe
Size4608.0 KB
First Seen2021-11-28
File NameWinnucker.exe
Tagsexe, KRBanker, WannaCry

Malware Family: WannaCry

WannaCry, küresel saldırıdır.

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

Threat Indicators (IOC)

  • SHA256: 780bb152049a5921fabbe0de066b53c36bf45d895b60b1651e35c69052e6703d
  • MD5: edf913f2d9993f003e5fe25be9a48929

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: 780bb152049a5921"
        threat_level = "critical"
        first_seen = "2021-11-28"
    condition:
        hash.sha256(0, filesize) == "780bb152049a5921fabbe0de066b53c36bf45d895b60b1651e35c69052e6703d"
}

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 780bb152049a5921fabbe0de066b53c36bf45d895b60b1651e35c69052e6703d # MD5 edf913f2d9993f003e5fe25be9a48929
TypeValueNote
sha256 780bb152049a5921fabbe0de066b53c36bf45d895b60b1651e35c69052e6703d Sample:WannaCry
md5 edf913f2d9993f003e5fe25be9a48929 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