GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA2567a914a3d4eca34b0f4798548bcdb3a5b01634c64668b9c77e7acc6be4585416c
MD56d7044f7935d7f26ab90e1e60e6d42eb
File Typeexe
Size1256.5 KB
First Seen2022-09-24
File NameHEUR-Trojan.MSIL.Bingoml.gen-7a914a3d4eca34b0f4798548bcdb3a5b01634c64668b9c77e7acc6be4585416c
Tagsexe, Gandcrab, Ransomware

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: 7a914a3d4eca34b0f4798548bcdb3a5b01634c64668b9c77e7acc6be4585416c
  • MD5: 6d7044f7935d7f26ab90e1e60e6d42eb

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: 7a914a3d4eca34b0"
        threat_level = "critical"
        first_seen = "2022-09-24"
    condition:
        hash.sha256(0, filesize) == "7a914a3d4eca34b0f4798548bcdb3a5b01634c64668b9c77e7acc6be4585416c"
}

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 7a914a3d4eca34b0f4798548bcdb3a5b01634c64668b9c77e7acc6be4585416c # MD5 6d7044f7935d7f26ab90e1e60e6d42eb
TypeValueNote
sha256 7a914a3d4eca34b0f4798548bcdb3a5b01634c64668b9c77e7acc6be4585416c Sample:GandCrab
md5 6d7044f7935d7f26ab90e1e60e6d42eb Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi