GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256f3a9fef9c3da5bc97f811841b13c56fe7124b0a5f94120bacc72ecf423943597
MD5df47a0332cc835506d183ff80bec9e03
File Typeexe
Size95.8 KB
First Seen2022-08-30
File Namef3a9fef9c3da5bc97f811841b13c56fe7124b0a5f94120bacc72ecf423943597
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: f3a9fef9c3da5bc97f811841b13c56fe7124b0a5f94120bacc72ecf423943597
  • MD5: df47a0332cc835506d183ff80bec9e03

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: f3a9fef9c3da5bc9"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "f3a9fef9c3da5bc97f811841b13c56fe7124b0a5f94120bacc72ecf423943597"
}

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 f3a9fef9c3da5bc97f811841b13c56fe7124b0a5f94120bacc72ecf423943597 # MD5 df47a0332cc835506d183ff80bec9e03
TypeValueNote
sha256 f3a9fef9c3da5bc97f811841b13c56fe7124b0a5f94120bacc72ecf423943597 Sample:GandCrab
md5 df47a0332cc835506d183ff80bec9e03 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi