GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256ff8fd102553428419f96979fa5cb9fbca15e659e8a8fbfc506d71d2e3b469576
MD529e716f885c6e8b306dd729c196421aa
File Typeexe
Size73.5 KB
First Seen2022-08-30
File Nameff8fd102553428419f96979fa5cb9fbca15e659e8a8fbfc506d71d2e3b469576
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: ff8fd102553428419f96979fa5cb9fbca15e659e8a8fbfc506d71d2e3b469576
  • MD5: 29e716f885c6e8b306dd729c196421aa

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: ff8fd10255342841"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "ff8fd102553428419f96979fa5cb9fbca15e659e8a8fbfc506d71d2e3b469576"
}

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 ff8fd102553428419f96979fa5cb9fbca15e659e8a8fbfc506d71d2e3b469576 # MD5 29e716f885c6e8b306dd729c196421aa
TypeValueNote
sha256 ff8fd102553428419f96979fa5cb9fbca15e659e8a8fbfc506d71d2e3b469576 Sample:GandCrab
md5 29e716f885c6e8b306dd729c196421aa Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi