GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256bf8eb76703eed0bd31be33d82f773aeb8e09588e36a8bdb0c12f96d0f85b4036
MD586ea14f5c0540c75c37a9738e28db5ba
File Typeexe
Size321.5 KB
First Seen2022-11-30
File Name2e2fec3806a56d42fbb656127b62787a14b8673b
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: bf8eb76703eed0bd31be33d82f773aeb8e09588e36a8bdb0c12f96d0f85b4036
  • MD5: 86ea14f5c0540c75c37a9738e28db5ba

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: bf8eb76703eed0bd"
        threat_level = "critical"
        first_seen = "2022-11-30"
    condition:
        hash.sha256(0, filesize) == "bf8eb76703eed0bd31be33d82f773aeb8e09588e36a8bdb0c12f96d0f85b4036"
}

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 bf8eb76703eed0bd31be33d82f773aeb8e09588e36a8bdb0c12f96d0f85b4036 # MD5 86ea14f5c0540c75c37a9738e28db5ba
TypeValueNote
sha256 bf8eb76703eed0bd31be33d82f773aeb8e09588e36a8bdb0c12f96d0f85b4036 Sample:GandCrab
md5 86ea14f5c0540c75c37a9738e28db5ba Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi