GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256195cdde8bc2a98f3583f9647171a5b47d9f577f4ffd5805bb3367b012f3428d3
MD5a82e420c74def2792316dfe5e330ff28
File Typeexe
Size143.0 KB
First Seen2023-01-24
File Name195cdde8bc2a98f3583f9647171a5b47d9f577f4ffd5805bb3367b012f3428d3.bin.sample
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: 195cdde8bc2a98f3583f9647171a5b47d9f577f4ffd5805bb3367b012f3428d3
  • MD5: a82e420c74def2792316dfe5e330ff28

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: 195cdde8bc2a98f3"
        threat_level = "critical"
        first_seen = "2023-01-24"
    condition:
        hash.sha256(0, filesize) == "195cdde8bc2a98f3583f9647171a5b47d9f577f4ffd5805bb3367b012f3428d3"
}

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 195cdde8bc2a98f3583f9647171a5b47d9f577f4ffd5805bb3367b012f3428d3 # MD5 a82e420c74def2792316dfe5e330ff28
TypeValueNote
sha256 195cdde8bc2a98f3583f9647171a5b47d9f577f4ffd5805bb3367b012f3428d3 Sample:GandCrab
md5 a82e420c74def2792316dfe5e330ff28 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi