GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA2565f5c99957891c2892d9185bbb78e2816b776ef662786599bed4b925d63565292
MD582e654c3b209418c6c91c87b47cb57eb
File Typeexe
Size69.5 KB
First Seen2022-08-30
File Name5f5c99957891c2892d9185bbb78e2816b776ef662786599bed4b925d63565292
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: 5f5c99957891c2892d9185bbb78e2816b776ef662786599bed4b925d63565292
  • MD5: 82e654c3b209418c6c91c87b47cb57eb

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: 5f5c99957891c289"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "5f5c99957891c2892d9185bbb78e2816b776ef662786599bed4b925d63565292"
}

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 5f5c99957891c2892d9185bbb78e2816b776ef662786599bed4b925d63565292 # MD5 82e654c3b209418c6c91c87b47cb57eb
TypeValueNote
sha256 5f5c99957891c2892d9185bbb78e2816b776ef662786599bed4b925d63565292 Sample:GandCrab
md5 82e654c3b209418c6c91c87b47cb57eb Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi