GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256a78366e68d6a773d6fb0bde6650c0bf30de13ccee56257ce2d80943b935dd4eb
MD5dc8aebdd1bedd242ee523ec39cf5174f
File Typeexe
Size16384.0 KB
First Seen2023-05-09
File Name2023-05-08_dc8aebdd1bedd242ee523ec39cf5174f_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: a78366e68d6a773d6fb0bde6650c0bf30de13ccee56257ce2d80943b935dd4eb
  • MD5: dc8aebdd1bedd242ee523ec39cf5174f

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: a78366e68d6a773d"
        threat_level = "critical"
        first_seen = "2023-05-09"
    condition:
        hash.sha256(0, filesize) == "a78366e68d6a773d6fb0bde6650c0bf30de13ccee56257ce2d80943b935dd4eb"
}

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 a78366e68d6a773d6fb0bde6650c0bf30de13ccee56257ce2d80943b935dd4eb # MD5 dc8aebdd1bedd242ee523ec39cf5174f
TypeValueNote
sha256 a78366e68d6a773d6fb0bde6650c0bf30de13ccee56257ce2d80943b935dd4eb Sample:GandCrab
md5 dc8aebdd1bedd242ee523ec39cf5174f Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi