GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA2565517304edd1a9b7c4ba64c8651b9063017176e2f8e772c11a8b12060d364518b
MD531ffa7c090c2698cd521c817379b441f
File Typeexe
Size69.5 KB
First Seen2022-08-30
File Name5517304edd1a9b7c4ba64c8651b9063017176e2f8e772c11a8b12060d364518b
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: 5517304edd1a9b7c4ba64c8651b9063017176e2f8e772c11a8b12060d364518b
  • MD5: 31ffa7c090c2698cd521c817379b441f

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: 5517304edd1a9b7c"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "5517304edd1a9b7c4ba64c8651b9063017176e2f8e772c11a8b12060d364518b"
}

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 5517304edd1a9b7c4ba64c8651b9063017176e2f8e772c11a8b12060d364518b # MD5 31ffa7c090c2698cd521c817379b441f
TypeValueNote
sha256 5517304edd1a9b7c4ba64c8651b9063017176e2f8e772c11a8b12060d364518b Sample:GandCrab
md5 31ffa7c090c2698cd521c817379b441f Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi