GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256d25dec749477ee6c6e2af613d0c1a17f77e15125d209b77c9ad0fb286c0e8fa7
MD5a96a94004139761a195334d2cbdc9514
File Typeexe
Size176.0 KB
First Seen2023-05-07
File Name2023-05-06_a96a94004139761a195334d2cbdc9514_gandcrab
TagsGandcrab

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: d25dec749477ee6c6e2af613d0c1a17f77e15125d209b77c9ad0fb286c0e8fa7
  • MD5: a96a94004139761a195334d2cbdc9514

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: d25dec749477ee6c"
        threat_level = "critical"
        first_seen = "2023-05-07"
    condition:
        hash.sha256(0, filesize) == "d25dec749477ee6c6e2af613d0c1a17f77e15125d209b77c9ad0fb286c0e8fa7"
}

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 d25dec749477ee6c6e2af613d0c1a17f77e15125d209b77c9ad0fb286c0e8fa7 # MD5 a96a94004139761a195334d2cbdc9514
TypeValueNote
sha256 d25dec749477ee6c6e2af613d0c1a17f77e15125d209b77c9ad0fb286c0e8fa7 Sample:GandCrab
md5 a96a94004139761a195334d2cbdc9514 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi