GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256a13323a8c0d9ef9bc2b420fbfed8e7eb4d68810c52e7f0457992add90a97a594
MD5e6d8f08fc598d4f63fb642dc70a49526
File Typeexe
Size70.0 KB
First Seen2023-03-07
File Name2023-03-06_e6d8f08fc598d4f63fb642dc70a49526_gandcrab
TagsGandcrab

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: a13323a8c0d9ef9bc2b420fbfed8e7eb4d68810c52e7f0457992add90a97a594
  • MD5: e6d8f08fc598d4f63fb642dc70a49526

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: a13323a8c0d9ef9b"
        threat_level = "critical"
        first_seen = "2023-03-07"
    condition:
        hash.sha256(0, filesize) == "a13323a8c0d9ef9bc2b420fbfed8e7eb4d68810c52e7f0457992add90a97a594"
}

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 a13323a8c0d9ef9bc2b420fbfed8e7eb4d68810c52e7f0457992add90a97a594 # MD5 e6d8f08fc598d4f63fb642dc70a49526
TypeValueNote
sha256 a13323a8c0d9ef9bc2b420fbfed8e7eb4d68810c52e7f0457992add90a97a594 Sample:GandCrab
md5 e6d8f08fc598d4f63fb642dc70a49526 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi