WannaCry | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256430de6aab92628cd4df7d02a1cd9cd953d0c2f15da9ed6cb71d6034f8507d0f9
MD52e1536b8e34deaf8e2b29421f2a9d4e8
File Typedll
Size5144.0 KB
First Seen2022-07-20
File Name2e1536b8e34deaf8e2b29421f2a9d4e8
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: 430de6aab92628cd4df7d02a1cd9cd953d0c2f15da9ed6cb71d6034f8507d0f9
  • MD5: 2e1536b8e34deaf8e2b29421f2a9d4e8

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: 430de6aab92628cd"
        threat_level = "critical"
        first_seen = "2022-07-20"
    condition:
        hash.sha256(0, filesize) == "430de6aab92628cd4df7d02a1cd9cd953d0c2f15da9ed6cb71d6034f8507d0f9"
}

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 430de6aab92628cd4df7d02a1cd9cd953d0c2f15da9ed6cb71d6034f8507d0f9 # MD5 2e1536b8e34deaf8e2b29421f2a9d4e8
TypeValueNote
sha256 430de6aab92628cd4df7d02a1cd9cd953d0c2f15da9ed6cb71d6034f8507d0f9 Sample:WannaCry
md5 2e1536b8e34deaf8e2b29421f2a9d4e8 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