GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256766e74d537f899c5df5545a65b0baa131df415786f23d59efc8d5b487deeee04
MD5d5537f67f788b16ae937630dcdf6360b
File Typeexe
Size73.5 KB
First Seen2022-08-30
File Name766e74d537f899c5df5545a65b0baa131df415786f23d59efc8d5b487deeee04
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: 766e74d537f899c5df5545a65b0baa131df415786f23d59efc8d5b487deeee04
  • MD5: d5537f67f788b16ae937630dcdf6360b

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: 766e74d537f899c5"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "766e74d537f899c5df5545a65b0baa131df415786f23d59efc8d5b487deeee04"
}

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 766e74d537f899c5df5545a65b0baa131df415786f23d59efc8d5b487deeee04 # MD5 d5537f67f788b16ae937630dcdf6360b
TypeValueNote
sha256 766e74d537f899c5df5545a65b0baa131df415786f23d59efc8d5b487deeee04 Sample:GandCrab
md5 d5537f67f788b16ae937630dcdf6360b Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi