GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256bc0cd1eba2ff99c013c9a139151ba9a2670ac9083b4b915802943f9778593585
MD5411d8b2e2099b7c0db01378e5fb0ea7a
File Typeexe
Size272.0 KB
First Seen2023-04-23
File Name2023-04-22_411d8b2e2099b7c0db01378e5fb0ea7a_gandcrab
TagsGandcrab, Ransomware

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: bc0cd1eba2ff99c013c9a139151ba9a2670ac9083b4b915802943f9778593585
  • MD5: 411d8b2e2099b7c0db01378e5fb0ea7a

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: bc0cd1eba2ff99c0"
        threat_level = "critical"
        first_seen = "2023-04-23"
    condition:
        hash.sha256(0, filesize) == "bc0cd1eba2ff99c013c9a139151ba9a2670ac9083b4b915802943f9778593585"
}

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 bc0cd1eba2ff99c013c9a139151ba9a2670ac9083b4b915802943f9778593585 # MD5 411d8b2e2099b7c0db01378e5fb0ea7a
TypeValueNote
sha256 bc0cd1eba2ff99c013c9a139151ba9a2670ac9083b4b915802943f9778593585 Sample:GandCrab
md5 411d8b2e2099b7c0db01378e5fb0ea7a Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi