GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256c2af3cb8b1d5a4e8c9ae3a431f414175f8909d69b9ce564c59a66a90a6a002fb
MD5a5655218287590517509767975a5dac1
File Typeexe
Size73.5 KB
First Seen2022-08-30
File Namec2af3cb8b1d5a4e8c9ae3a431f414175f8909d69b9ce564c59a66a90a6a002fb
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: c2af3cb8b1d5a4e8c9ae3a431f414175f8909d69b9ce564c59a66a90a6a002fb
  • MD5: a5655218287590517509767975a5dac1

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: c2af3cb8b1d5a4e8"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "c2af3cb8b1d5a4e8c9ae3a431f414175f8909d69b9ce564c59a66a90a6a002fb"
}

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 c2af3cb8b1d5a4e8c9ae3a431f414175f8909d69b9ce564c59a66a90a6a002fb # MD5 a5655218287590517509767975a5dac1
TypeValueNote
sha256 c2af3cb8b1d5a4e8c9ae3a431f414175f8909d69b9ce564c59a66a90a6a002fb Sample:GandCrab
md5 a5655218287590517509767975a5dac1 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi