GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA2560a20f03af50d14404b349279b3dc20886b1bf91419ede3f1b0c7fbdda579ae77
MD5f89692198bfc2d2c0f96ae539f1f20ff
File Typeexe
Size16384.0 KB
First Seen2023-05-08
File Name2023-05-07_f89692198bfc2d2c0f96ae539f1f20ff_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: 0a20f03af50d14404b349279b3dc20886b1bf91419ede3f1b0c7fbdda579ae77
  • MD5: f89692198bfc2d2c0f96ae539f1f20ff

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: 0a20f03af50d1440"
        threat_level = "critical"
        first_seen = "2023-05-08"
    condition:
        hash.sha256(0, filesize) == "0a20f03af50d14404b349279b3dc20886b1bf91419ede3f1b0c7fbdda579ae77"
}

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 0a20f03af50d14404b349279b3dc20886b1bf91419ede3f1b0c7fbdda579ae77 # MD5 f89692198bfc2d2c0f96ae539f1f20ff
TypeValueNote
sha256 0a20f03af50d14404b349279b3dc20886b1bf91419ede3f1b0c7fbdda579ae77 Sample:GandCrab
md5 f89692198bfc2d2c0f96ae539f1f20ff Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi