GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256d5fa54caa99eed1cb91c5770343929b8e8f70c95a6c58f933290650eeff4018a
MD5331f1cb2fab4d2adbbcee998f4e6e507
File Typeexe
Size97.5 KB
First Seen2022-08-30
File Named5fa54caa99eed1cb91c5770343929b8e8f70c95a6c58f933290650eeff4018a
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: d5fa54caa99eed1cb91c5770343929b8e8f70c95a6c58f933290650eeff4018a
  • MD5: 331f1cb2fab4d2adbbcee998f4e6e507

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: d5fa54caa99eed1c"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "d5fa54caa99eed1cb91c5770343929b8e8f70c95a6c58f933290650eeff4018a"
}

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 d5fa54caa99eed1cb91c5770343929b8e8f70c95a6c58f933290650eeff4018a # MD5 331f1cb2fab4d2adbbcee998f4e6e507
TypeValueNote
sha256 d5fa54caa99eed1cb91c5770343929b8e8f70c95a6c58f933290650eeff4018a Sample:GandCrab
md5 331f1cb2fab4d2adbbcee998f4e6e507 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi