GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256bf6c2fc64f3285ddc4c35185cc76ef080f4ac4c96698ee615d29b92e070a6b58
MD5ca9d5a7d996e5798cf5b2e270ad19a71
File Typeexe
Size70.0 KB
First Seen2022-08-30
File Namebf6c2fc64f3285ddc4c35185cc76ef080f4ac4c96698ee615d29b92e070a6b58
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: bf6c2fc64f3285ddc4c35185cc76ef080f4ac4c96698ee615d29b92e070a6b58
  • MD5: ca9d5a7d996e5798cf5b2e270ad19a71

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: bf6c2fc64f3285dd"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "bf6c2fc64f3285ddc4c35185cc76ef080f4ac4c96698ee615d29b92e070a6b58"
}

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 bf6c2fc64f3285ddc4c35185cc76ef080f4ac4c96698ee615d29b92e070a6b58 # MD5 ca9d5a7d996e5798cf5b2e270ad19a71
TypeValueNote
sha256 bf6c2fc64f3285ddc4c35185cc76ef080f4ac4c96698ee615d29b92e070a6b58 Sample:GandCrab
md5 ca9d5a7d996e5798cf5b2e270ad19a71 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi