GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA2567dd561afd40c84ecbb49025a6176ee973b56b1271ac2b25279daa095941283fa
MD5b6191a47d15b387578dcb59bcd7b4da3
File Typeexe
Size229.0 KB
First Seen2023-03-24
File Name7dd561afd40c84ecbb49025a6176ee973b56b1271ac2b25279daa095941283fa
TagsGandcrab, Ransomware

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: 7dd561afd40c84ecbb49025a6176ee973b56b1271ac2b25279daa095941283fa
  • MD5: b6191a47d15b387578dcb59bcd7b4da3

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: 7dd561afd40c84ec"
        threat_level = "critical"
        first_seen = "2023-03-24"
    condition:
        hash.sha256(0, filesize) == "7dd561afd40c84ecbb49025a6176ee973b56b1271ac2b25279daa095941283fa"
}

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 7dd561afd40c84ecbb49025a6176ee973b56b1271ac2b25279daa095941283fa # MD5 b6191a47d15b387578dcb59bcd7b4da3
TypeValueNote
sha256 7dd561afd40c84ecbb49025a6176ee973b56b1271ac2b25279daa095941283fa Sample:GandCrab
md5 b6191a47d15b387578dcb59bcd7b4da3 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi