GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA25612cf510444fbe31d26b0d07046827713acff59310a677041d10a38baa5475bb9
MD5ffdfb4889a8af7fee5c0d60731b3ff1b
File Typeexe
Size9350.0 KB
First Seen2025-03-16
File NamegandcrabR.exe
TagsChaos, exe, Gandcrab, Ransomware, trojan

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: 12cf510444fbe31d26b0d07046827713acff59310a677041d10a38baa5475bb9
  • MD5: ffdfb4889a8af7fee5c0d60731b3ff1b

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: 12cf510444fbe31d"
        threat_level = "critical"
        first_seen = "2025-03-16"
    condition:
        hash.sha256(0, filesize) == "12cf510444fbe31d26b0d07046827713acff59310a677041d10a38baa5475bb9"
}

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 12cf510444fbe31d26b0d07046827713acff59310a677041d10a38baa5475bb9 # MD5 ffdfb4889a8af7fee5c0d60731b3ff1b
TypeValueNote
sha256 12cf510444fbe31d26b0d07046827713acff59310a677041d10a38baa5475bb9 Sample:GandCrab
md5 ffdfb4889a8af7fee5c0d60731b3ff1b Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi