GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA2563fa4fb12741f7a2cace70b8211607a7b5c9115d239fa14c55aa686b77f4cb75b
MD53ec8be4d4892b98b19f769e9fb207959
File Typeexe
Size70.0 KB
First Seen2022-08-30
File Name3fa4fb12741f7a2cace70b8211607a7b5c9115d239fa14c55aa686b77f4cb75b
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: 3fa4fb12741f7a2cace70b8211607a7b5c9115d239fa14c55aa686b77f4cb75b
  • MD5: 3ec8be4d4892b98b19f769e9fb207959

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: 3fa4fb12741f7a2c"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "3fa4fb12741f7a2cace70b8211607a7b5c9115d239fa14c55aa686b77f4cb75b"
}

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 3fa4fb12741f7a2cace70b8211607a7b5c9115d239fa14c55aa686b77f4cb75b # MD5 3ec8be4d4892b98b19f769e9fb207959
TypeValueNote
sha256 3fa4fb12741f7a2cace70b8211607a7b5c9115d239fa14c55aa686b77f4cb75b Sample:GandCrab
md5 3ec8be4d4892b98b19f769e9fb207959 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi