GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA25651a8cedb4ca11826a538bc75ed18bdf7a4e9695d317b721997b14674c155291d
MD561c298eda706c4cfc4d50a372a74ede5
File Typeexe
Size69.5 KB
First Seen2022-08-30
File Name51a8cedb4ca11826a538bc75ed18bdf7a4e9695d317b721997b14674c155291d
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: 51a8cedb4ca11826a538bc75ed18bdf7a4e9695d317b721997b14674c155291d
  • MD5: 61c298eda706c4cfc4d50a372a74ede5

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: 51a8cedb4ca11826"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "51a8cedb4ca11826a538bc75ed18bdf7a4e9695d317b721997b14674c155291d"
}

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 51a8cedb4ca11826a538bc75ed18bdf7a4e9695d317b721997b14674c155291d # MD5 61c298eda706c4cfc4d50a372a74ede5
TypeValueNote
sha256 51a8cedb4ca11826a538bc75ed18bdf7a4e9695d317b721997b14674c155291d Sample:GandCrab
md5 61c298eda706c4cfc4d50a372a74ede5 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi