GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA2564fd57644b9ca1d27d58e506adc870511fcb3e810764cffff3d464fa1d5e119ee
MD5a4e1acce13c52b8cb54c1de5e26264bb
File Typeexe
Size97.5 KB
First Seen2022-08-30
File Name4fd57644b9ca1d27d58e506adc870511fcb3e810764cffff3d464fa1d5e119ee
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: 4fd57644b9ca1d27d58e506adc870511fcb3e810764cffff3d464fa1d5e119ee
  • MD5: a4e1acce13c52b8cb54c1de5e26264bb

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: 4fd57644b9ca1d27"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "4fd57644b9ca1d27d58e506adc870511fcb3e810764cffff3d464fa1d5e119ee"
}

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 4fd57644b9ca1d27d58e506adc870511fcb3e810764cffff3d464fa1d5e119ee # MD5 a4e1acce13c52b8cb54c1de5e26264bb
TypeValueNote
sha256 4fd57644b9ca1d27d58e506adc870511fcb3e810764cffff3d464fa1d5e119ee Sample:GandCrab
md5 a4e1acce13c52b8cb54c1de5e26264bb Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi