GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA25645b532239671510649dad33c4ee2dc3b6766fec72a224c7a587d8b91d6475b29
MD562adf595986d097c8e9dcc284edbbfb3
File Typeexe
Size69.5 KB
First Seen2022-08-30
File Name45b532239671510649dad33c4ee2dc3b6766fec72a224c7a587d8b91d6475b29
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, en yaygın eski ransomware'dir.

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

Threat Indicators (IOC)

  • SHA256: 45b532239671510649dad33c4ee2dc3b6766fec72a224c7a587d8b91d6475b29
  • MD5: 62adf595986d097c8e9dcc284edbbfb3

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: 45b5322396715106"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "45b532239671510649dad33c4ee2dc3b6766fec72a224c7a587d8b91d6475b29"
}

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 45b532239671510649dad33c4ee2dc3b6766fec72a224c7a587d8b91d6475b29 # MD5 62adf595986d097c8e9dcc284edbbfb3
TypeValueNote
sha256 45b532239671510649dad33c4ee2dc3b6766fec72a224c7a587d8b91d6475b29 Sample:GandCrab
md5 62adf595986d097c8e9dcc284edbbfb3 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi