GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256520519cbc5fb8fa41210973f86c32d85d93ff22add5a598e250075cff6178090
MD5be8a59d73dd198c19781082525e94d18
File Typeexe
Size70.0 KB
First Seen2022-08-30
File Name520519cbc5fb8fa41210973f86c32d85d93ff22add5a598e250075cff6178090
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: 520519cbc5fb8fa41210973f86c32d85d93ff22add5a598e250075cff6178090
  • MD5: be8a59d73dd198c19781082525e94d18

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: 520519cbc5fb8fa4"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "520519cbc5fb8fa41210973f86c32d85d93ff22add5a598e250075cff6178090"
}

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 520519cbc5fb8fa41210973f86c32d85d93ff22add5a598e250075cff6178090 # MD5 be8a59d73dd198c19781082525e94d18
TypeValueNote
sha256 520519cbc5fb8fa41210973f86c32d85d93ff22add5a598e250075cff6178090 Sample:GandCrab
md5 be8a59d73dd198c19781082525e94d18 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi