GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256d443f98f0bb19af85469ae0f7b31201500f1828b5508f12067f674ad413cd0af
MD5c23173d409a80e4452adba8e452cb40b
File Typeexe
Size70.0 KB
First Seen2023-04-19
File Name2023-04-18_c23173d409a80e4452adba8e452cb40b_gandcrab
TagsGandcrab

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: d443f98f0bb19af85469ae0f7b31201500f1828b5508f12067f674ad413cd0af
  • MD5: c23173d409a80e4452adba8e452cb40b

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: d443f98f0bb19af8"
        threat_level = "critical"
        first_seen = "2023-04-19"
    condition:
        hash.sha256(0, filesize) == "d443f98f0bb19af85469ae0f7b31201500f1828b5508f12067f674ad413cd0af"
}

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 d443f98f0bb19af85469ae0f7b31201500f1828b5508f12067f674ad413cd0af # MD5 c23173d409a80e4452adba8e452cb40b
TypeValueNote
sha256 d443f98f0bb19af85469ae0f7b31201500f1828b5508f12067f674ad413cd0af Sample:GandCrab
md5 c23173d409a80e4452adba8e452cb40b Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi