GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256a0728421ceaa8bf12e73a7a6074cb9b5178ff76a2ba325f1c50db9cef037ecbc
MD590105e99c0a041bdfb83f594ef9eb353
File Typeexe
Size65.5 KB
First Seen2022-08-30
File Namea0728421ceaa8bf12e73a7a6074cb9b5178ff76a2ba325f1c50db9cef037ecbc
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: a0728421ceaa8bf12e73a7a6074cb9b5178ff76a2ba325f1c50db9cef037ecbc
  • MD5: 90105e99c0a041bdfb83f594ef9eb353

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: a0728421ceaa8bf1"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "a0728421ceaa8bf12e73a7a6074cb9b5178ff76a2ba325f1c50db9cef037ecbc"
}

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 a0728421ceaa8bf12e73a7a6074cb9b5178ff76a2ba325f1c50db9cef037ecbc # MD5 90105e99c0a041bdfb83f594ef9eb353
TypeValueNote
sha256 a0728421ceaa8bf12e73a7a6074cb9b5178ff76a2ba325f1c50db9cef037ecbc Sample:GandCrab
md5 90105e99c0a041bdfb83f594ef9eb353 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi