GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA25645dda0550544ce4409cffb302c574f374b1c65672efcb8748df83c531d560898
MD5c4055bafbc1592a0e1c241d289f5bf42
File Typeexe
Size73.5 KB
First Seen2022-08-30
File Name45dda0550544ce4409cffb302c574f374b1c65672efcb8748df83c531d560898
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: 45dda0550544ce4409cffb302c574f374b1c65672efcb8748df83c531d560898
  • MD5: c4055bafbc1592a0e1c241d289f5bf42

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: 45dda0550544ce44"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "45dda0550544ce4409cffb302c574f374b1c65672efcb8748df83c531d560898"
}

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 45dda0550544ce4409cffb302c574f374b1c65672efcb8748df83c531d560898 # MD5 c4055bafbc1592a0e1c241d289f5bf42
TypeValueNote
sha256 45dda0550544ce4409cffb302c574f374b1c65672efcb8748df83c531d560898 Sample:GandCrab
md5 c4055bafbc1592a0e1c241d289f5bf42 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi