GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA25690c8c743012591c8481ce21422f4669508e01bd58806307e1dc821c4bf881455
MD5644b04bfb9ef9f0b554188a61c2af788
File Typeexe
Size69.5 KB
First Seen2022-08-30
File Name90c8c743012591c8481ce21422f4669508e01bd58806307e1dc821c4bf881455
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: 90c8c743012591c8481ce21422f4669508e01bd58806307e1dc821c4bf881455
  • MD5: 644b04bfb9ef9f0b554188a61c2af788

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: 90c8c743012591c8"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "90c8c743012591c8481ce21422f4669508e01bd58806307e1dc821c4bf881455"
}

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 90c8c743012591c8481ce21422f4669508e01bd58806307e1dc821c4bf881455 # MD5 644b04bfb9ef9f0b554188a61c2af788
TypeValueNote
sha256 90c8c743012591c8481ce21422f4669508e01bd58806307e1dc821c4bf881455 Sample:GandCrab
md5 644b04bfb9ef9f0b554188a61c2af788 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi