GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256ad58971ca35bd53cacf4d631bdafe9bd0d334095c743be44b7fad3d408addba0
MD54f903a999a279b50e8735f017778dd83
File Typeexe
Size97.5 KB
First Seen2022-08-30
File Namead58971ca35bd53cacf4d631bdafe9bd0d334095c743be44b7fad3d408addba0
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

TypeRansomware
Programming LanguageC
Target PlatformWindows
C2 ProtocolHTTP
PurposeMaaS ransomware
First Seen Year2018

Threat Indicators (IOC)

  • SHA256: ad58971ca35bd53cacf4d631bdafe9bd0d334095c743be44b7fad3d408addba0
  • MD5: 4f903a999a279b50e8735f017778dd83

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: ad58971ca35bd53c"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "ad58971ca35bd53cacf4d631bdafe9bd0d334095c743be44b7fad3d408addba0"
}

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 ad58971ca35bd53cacf4d631bdafe9bd0d334095c743be44b7fad3d408addba0 # MD5 4f903a999a279b50e8735f017778dd83
TypeValueNote
sha256 ad58971ca35bd53cacf4d631bdafe9bd0d334095c743be44b7fad3d408addba0 Sample:GandCrab
md5 4f903a999a279b50e8735f017778dd83 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi