GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA2561a2820142368139d260bf44c88a031bd742f058df416f467bc8d9a52ed686a02
MD527a3426c2d3f2ee53b841a3fd051d4cc
File Typeexe
Size70.0 KB
First Seen2022-08-30
File Name1a2820142368139d260bf44c88a031bd742f058df416f467bc8d9a52ed686a02
Tagsexe, Gandcrab

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: 1a2820142368139d260bf44c88a031bd742f058df416f467bc8d9a52ed686a02
  • MD5: 27a3426c2d3f2ee53b841a3fd051d4cc

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: 1a2820142368139d"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "1a2820142368139d260bf44c88a031bd742f058df416f467bc8d9a52ed686a02"
}

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 1a2820142368139d260bf44c88a031bd742f058df416f467bc8d9a52ed686a02 # MD5 27a3426c2d3f2ee53b841a3fd051d4cc
TypeValueNote
sha256 1a2820142368139d260bf44c88a031bd742f058df416f467bc8d9a52ed686a02 Sample:GandCrab
md5 27a3426c2d3f2ee53b841a3fd051d4cc Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi