GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256ec27831a1dc4cfcb27484156aeba426f9e6ba0cc0d7b920368010f9fdaeb73ff
MD5407caf707250eca29adb737edec4acc1
File Typeexe
Size73.5 KB
First Seen2022-08-30
File Nameec27831a1dc4cfcb27484156aeba426f9e6ba0cc0d7b920368010f9fdaeb73ff
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: ec27831a1dc4cfcb27484156aeba426f9e6ba0cc0d7b920368010f9fdaeb73ff
  • MD5: 407caf707250eca29adb737edec4acc1

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: ec27831a1dc4cfcb"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "ec27831a1dc4cfcb27484156aeba426f9e6ba0cc0d7b920368010f9fdaeb73ff"
}

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 ec27831a1dc4cfcb27484156aeba426f9e6ba0cc0d7b920368010f9fdaeb73ff # MD5 407caf707250eca29adb737edec4acc1
TypeValueNote
sha256 ec27831a1dc4cfcb27484156aeba426f9e6ba0cc0d7b920368010f9fdaeb73ff Sample:GandCrab
md5 407caf707250eca29adb737edec4acc1 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi