GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA2564d74ae5254d907d292cdbd87f11ae22260e01822fe11fcf34db9f986ea33767b
MD58f80eb908f9f52359334072f06d32161
File Typeexe
Size69.5 KB
First Seen2022-08-30
File Name4d74ae5254d907d292cdbd87f11ae22260e01822fe11fcf34db9f986ea33767b
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: 4d74ae5254d907d292cdbd87f11ae22260e01822fe11fcf34db9f986ea33767b
  • MD5: 8f80eb908f9f52359334072f06d32161

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: 4d74ae5254d907d2"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "4d74ae5254d907d292cdbd87f11ae22260e01822fe11fcf34db9f986ea33767b"
}

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 4d74ae5254d907d292cdbd87f11ae22260e01822fe11fcf34db9f986ea33767b # MD5 8f80eb908f9f52359334072f06d32161
TypeValueNote
sha256 4d74ae5254d907d292cdbd87f11ae22260e01822fe11fcf34db9f986ea33767b Sample:GandCrab
md5 8f80eb908f9f52359334072f06d32161 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi