GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA2564542af64bc7982a8d5c42a10e8f0be6f1af4db5f2cab2c2b7f7dc572c0b2cdfc
MD50ee40204297272c813acafc32eb6e60d
File Typeexe
Size70.0 KB
First Seen2023-03-07
File Name2023-03-06_0ee40204297272c813acafc32eb6e60d_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: 4542af64bc7982a8d5c42a10e8f0be6f1af4db5f2cab2c2b7f7dc572c0b2cdfc
  • MD5: 0ee40204297272c813acafc32eb6e60d

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: 4542af64bc7982a8"
        threat_level = "critical"
        first_seen = "2023-03-07"
    condition:
        hash.sha256(0, filesize) == "4542af64bc7982a8d5c42a10e8f0be6f1af4db5f2cab2c2b7f7dc572c0b2cdfc"
}

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 4542af64bc7982a8d5c42a10e8f0be6f1af4db5f2cab2c2b7f7dc572c0b2cdfc # MD5 0ee40204297272c813acafc32eb6e60d
TypeValueNote
sha256 4542af64bc7982a8d5c42a10e8f0be6f1af4db5f2cab2c2b7f7dc572c0b2cdfc Sample:GandCrab
md5 0ee40204297272c813acafc32eb6e60d Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi