GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256171b3c974bbe5d378346c50bebc841bbe3942e591086aa14dd8db66d995da7b2
MD5254243f51fba11c9ec41e6c219cb9528
File Typeexe
Size69.5 KB
First Seen2022-08-30
File Name171b3c974bbe5d378346c50bebc841bbe3942e591086aa14dd8db66d995da7b2
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: 171b3c974bbe5d378346c50bebc841bbe3942e591086aa14dd8db66d995da7b2
  • MD5: 254243f51fba11c9ec41e6c219cb9528

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: 171b3c974bbe5d37"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "171b3c974bbe5d378346c50bebc841bbe3942e591086aa14dd8db66d995da7b2"
}

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 171b3c974bbe5d378346c50bebc841bbe3942e591086aa14dd8db66d995da7b2 # MD5 254243f51fba11c9ec41e6c219cb9528
TypeValueNote
sha256 171b3c974bbe5d378346c50bebc841bbe3942e591086aa14dd8db66d995da7b2 Sample:GandCrab
md5 254243f51fba11c9ec41e6c219cb9528 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi