GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA2564bfc0214e7fa9f8aa864cbc8956fa3ffcbc9932a37863fee6217e42a3105ebaa
MD528d4c61cc9865b0d51ffc90d69f50833
File Typeexe
Size7892.0 KB
First Seen2023-05-09
File Name2023-05-08_28d4c61cc9865b0d51ffc90d69f50833_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: 4bfc0214e7fa9f8aa864cbc8956fa3ffcbc9932a37863fee6217e42a3105ebaa
  • MD5: 28d4c61cc9865b0d51ffc90d69f50833

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: 4bfc0214e7fa9f8a"
        threat_level = "critical"
        first_seen = "2023-05-09"
    condition:
        hash.sha256(0, filesize) == "4bfc0214e7fa9f8aa864cbc8956fa3ffcbc9932a37863fee6217e42a3105ebaa"
}

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 4bfc0214e7fa9f8aa864cbc8956fa3ffcbc9932a37863fee6217e42a3105ebaa # MD5 28d4c61cc9865b0d51ffc90d69f50833
TypeValueNote
sha256 4bfc0214e7fa9f8aa864cbc8956fa3ffcbc9932a37863fee6217e42a3105ebaa Sample:GandCrab
md5 28d4c61cc9865b0d51ffc90d69f50833 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi