GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA2564db8e8c71022a7f58136a60d93cd18873e9520dfc1f1e4ab3a79fc424c0598f9
MD56c768f3a53d2490322fda61b4325aca6
File Typeexe
Size69.5 KB
First Seen2022-08-30
File Name4db8e8c71022a7f58136a60d93cd18873e9520dfc1f1e4ab3a79fc424c0598f9
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: 4db8e8c71022a7f58136a60d93cd18873e9520dfc1f1e4ab3a79fc424c0598f9
  • MD5: 6c768f3a53d2490322fda61b4325aca6

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: 4db8e8c71022a7f5"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "4db8e8c71022a7f58136a60d93cd18873e9520dfc1f1e4ab3a79fc424c0598f9"
}

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 4db8e8c71022a7f58136a60d93cd18873e9520dfc1f1e4ab3a79fc424c0598f9 # MD5 6c768f3a53d2490322fda61b4325aca6
TypeValueNote
sha256 4db8e8c71022a7f58136a60d93cd18873e9520dfc1f1e4ab3a79fc424c0598f9 Sample:GandCrab
md5 6c768f3a53d2490322fda61b4325aca6 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi