GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA2564b6db1a59ce31c78b9958342e6315a2d40e9b078747def487b9606e312cad630
MD59f1aeca41d2da7ef2a441961077474f1
File Typeexe
Size128.5 KB
First Seen2022-08-30
File Name4b6db1a59ce31c78b9958342e6315a2d40e9b078747def487b9606e312cad630
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: 4b6db1a59ce31c78b9958342e6315a2d40e9b078747def487b9606e312cad630
  • MD5: 9f1aeca41d2da7ef2a441961077474f1

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: 4b6db1a59ce31c78"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "4b6db1a59ce31c78b9958342e6315a2d40e9b078747def487b9606e312cad630"
}

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 4b6db1a59ce31c78b9958342e6315a2d40e9b078747def487b9606e312cad630 # MD5 9f1aeca41d2da7ef2a441961077474f1
TypeValueNote
sha256 4b6db1a59ce31c78b9958342e6315a2d40e9b078747def487b9606e312cad630 Sample:GandCrab
md5 9f1aeca41d2da7ef2a441961077474f1 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi