WannaCry | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256ad55f0db99cb7b4cc2189bb0434d6002f8bd2bf99e25d56d61d12e82dd8320d9
MD56d1d5d0040310af26f8e39b552497a6c
File Typeexe
Size244.0 KB
First Seen2022-10-01
File Namead55f0db99cb7b4cc2189bb0434d6002f8bd2bf99e25d56d61d12e82dd8320d9
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: ad55f0db99cb7b4cc2189bb0434d6002f8bd2bf99e25d56d61d12e82dd8320d9
  • MD5: 6d1d5d0040310af26f8e39b552497a6c

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: ad55f0db99cb7b4c"
        threat_level = "critical"
        first_seen = "2022-10-01"
    condition:
        hash.sha256(0, filesize) == "ad55f0db99cb7b4cc2189bb0434d6002f8bd2bf99e25d56d61d12e82dd8320d9"
}

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 ad55f0db99cb7b4cc2189bb0434d6002f8bd2bf99e25d56d61d12e82dd8320d9 # MD5 6d1d5d0040310af26f8e39b552497a6c
TypeValueNote
sha256 ad55f0db99cb7b4cc2189bb0434d6002f8bd2bf99e25d56d61d12e82dd8320d9 Sample:WannaCry
md5 6d1d5d0040310af26f8e39b552497a6c 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