GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256673d1a2a221a72c7a2b4a0e306d9280f0b40e3c0d496a95171190838890cb7dd
MD554b73c013d49364b35882ebf2f7616bb
File Typeexe
Size76.5 KB
First Seen2022-08-30
File Name673d1a2a221a72c7a2b4a0e306d9280f0b40e3c0d496a95171190838890cb7dd
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, en yaygın eski ransomware'dir.

TypeRansomware
Programming LanguageC
Target PlatformWindows
C2 ProtocolHTTP
PurposeMaaS ransomware
First Seen Year2018

Threat Indicators (IOC)

  • SHA256: 673d1a2a221a72c7a2b4a0e306d9280f0b40e3c0d496a95171190838890cb7dd
  • MD5: 54b73c013d49364b35882ebf2f7616bb

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 GandCrab_SHA256 {
    meta:
        description = "GandCrab sample: 673d1a2a221a72c7"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "673d1a2a221a72c7a2b4a0e306d9280f0b40e3c0d496a95171190838890cb7dd"
}

GandCrab — Malware Profile

GandCrab, 2018-2019 aktif RaaS ailesidir. 1.5 milyar USD hasar. RSA+Salsa20. Haziran 2019 kapandi. REvil oncusu.

Malware Type
Ransomware
Programming Language
C
C2 Protocol
HTTP
Target Systems
Windows

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 — GandCrab
# SHA256 673d1a2a221a72c7a2b4a0e306d9280f0b40e3c0d496a95171190838890cb7dd # MD5 54b73c013d49364b35882ebf2f7616bb
TypeValueNote
sha256 673d1a2a221a72c7a2b4a0e306d9280f0b40e3c0d496a95171190838890cb7dd Sample:GandCrab
md5 54b73c013d49364b35882ebf2f7616bb Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi