GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256cd46daecd88635b6db040e40686510d683d10546e5a55c68c179d68adaddc70e
MD5bc3d36f3c53fcddb6833fd5ddce5983f
File Typeexe
Size69.5 KB
First Seen2022-08-30
File Namecd46daecd88635b6db040e40686510d683d10546e5a55c68c179d68adaddc70e
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: cd46daecd88635b6db040e40686510d683d10546e5a55c68c179d68adaddc70e
  • MD5: bc3d36f3c53fcddb6833fd5ddce5983f

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: cd46daecd88635b6"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "cd46daecd88635b6db040e40686510d683d10546e5a55c68c179d68adaddc70e"
}

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 cd46daecd88635b6db040e40686510d683d10546e5a55c68c179d68adaddc70e # MD5 bc3d36f3c53fcddb6833fd5ddce5983f
TypeValueNote
sha256 cd46daecd88635b6db040e40686510d683d10546e5a55c68c179d68adaddc70e Sample:GandCrab
md5 bc3d36f3c53fcddb6833fd5ddce5983f Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi