GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256b818d7eb5500a02415a177d9a8934d7d9d20f0e46f849b3a2539cfe4f1114120
MD5682ef4f2b66b1e447701fecfad15094c
File Typeexe
Size70.0 KB
First Seen2022-08-30
File Nameb818d7eb5500a02415a177d9a8934d7d9d20f0e46f849b3a2539cfe4f1114120
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: b818d7eb5500a02415a177d9a8934d7d9d20f0e46f849b3a2539cfe4f1114120
  • MD5: 682ef4f2b66b1e447701fecfad15094c

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: b818d7eb5500a024"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "b818d7eb5500a02415a177d9a8934d7d9d20f0e46f849b3a2539cfe4f1114120"
}

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 b818d7eb5500a02415a177d9a8934d7d9d20f0e46f849b3a2539cfe4f1114120 # MD5 682ef4f2b66b1e447701fecfad15094c
TypeValueNote
sha256 b818d7eb5500a02415a177d9a8934d7d9d20f0e46f849b3a2539cfe4f1114120 Sample:GandCrab
md5 682ef4f2b66b1e447701fecfad15094c Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi