WannaCry | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256cddb36a78e743890b611c977b2e9c53e12a6bafe338abaf85dcf2039b6e04953
MD50bd8e61fb5d2e75388c88ea6ce581d68
File Typedll
Size5144.0 KB
First Seen2022-07-20
File Name0bd8e61fb5d2e75388c88ea6ce581d68
Tagsdll, OpenCTI.BR, Sandboxed, WannaCry

Malware Family: WannaCry

WannaCry, küresel saldırıdır.

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

Threat Indicators (IOC)

  • SHA256: cddb36a78e743890b611c977b2e9c53e12a6bafe338abaf85dcf2039b6e04953
  • MD5: 0bd8e61fb5d2e75388c88ea6ce581d68

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: cddb36a78e743890"
        threat_level = "critical"
        first_seen = "2022-07-20"
    condition:
        hash.sha256(0, filesize) == "cddb36a78e743890b611c977b2e9c53e12a6bafe338abaf85dcf2039b6e04953"
}

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 cddb36a78e743890b611c977b2e9c53e12a6bafe338abaf85dcf2039b6e04953 # MD5 0bd8e61fb5d2e75388c88ea6ce581d68
TypeValueNote
sha256 cddb36a78e743890b611c977b2e9c53e12a6bafe338abaf85dcf2039b6e04953 Sample:WannaCry
md5 0bd8e61fb5d2e75388c88ea6ce581d68 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