GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA2568c37086dc8982ed659cfe7dc1fc4e63159d83a4b27e323b17f920aed80c988ec
MD5f20c758eba3f0ebf891cb48484e41640
File Typeexe
Size69.5 KB
First Seen2022-08-30
File Name8c37086dc8982ed659cfe7dc1fc4e63159d83a4b27e323b17f920aed80c988ec
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: 8c37086dc8982ed659cfe7dc1fc4e63159d83a4b27e323b17f920aed80c988ec
  • MD5: f20c758eba3f0ebf891cb48484e41640

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: 8c37086dc8982ed6"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "8c37086dc8982ed659cfe7dc1fc4e63159d83a4b27e323b17f920aed80c988ec"
}

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 8c37086dc8982ed659cfe7dc1fc4e63159d83a4b27e323b17f920aed80c988ec # MD5 f20c758eba3f0ebf891cb48484e41640
TypeValueNote
sha256 8c37086dc8982ed659cfe7dc1fc4e63159d83a4b27e323b17f920aed80c988ec Sample:GandCrab
md5 f20c758eba3f0ebf891cb48484e41640 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi