GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256a972a2d70f76546096764c7f655c8434df56a0498cf2b80596f5170449547e8d
MD5952009908d87ed7a55d12c82cdb1504b
File Typeexe
Size97.5 KB
First Seen2022-08-30
File Namea972a2d70f76546096764c7f655c8434df56a0498cf2b80596f5170449547e8d
Tagsexe, Gandcrab

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: a972a2d70f76546096764c7f655c8434df56a0498cf2b80596f5170449547e8d
  • MD5: 952009908d87ed7a55d12c82cdb1504b

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: a972a2d70f765460"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "a972a2d70f76546096764c7f655c8434df56a0498cf2b80596f5170449547e8d"
}

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 a972a2d70f76546096764c7f655c8434df56a0498cf2b80596f5170449547e8d # MD5 952009908d87ed7a55d12c82cdb1504b
TypeValueNote
sha256 a972a2d70f76546096764c7f655c8434df56a0498cf2b80596f5170449547e8d Sample:GandCrab
md5 952009908d87ed7a55d12c82cdb1504b Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi