GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA2569b3d57f41bd8bb4344114c07d64943641433c6581cfdb1cd30545b94fd5be798
MD5a9638c4a1a8ce44236047cd6e3cd962b
File Typeexe
Size69.5 KB
First Seen2023-01-24
File Name9b3d57f41bd8bb4344114c07d64943641433c6581cfdb1cd30545b94fd5be798.bin.sample
Tagsexe, Gandcrab, Ransomware

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: 9b3d57f41bd8bb4344114c07d64943641433c6581cfdb1cd30545b94fd5be798
  • MD5: a9638c4a1a8ce44236047cd6e3cd962b

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: 9b3d57f41bd8bb43"
        threat_level = "critical"
        first_seen = "2023-01-24"
    condition:
        hash.sha256(0, filesize) == "9b3d57f41bd8bb4344114c07d64943641433c6581cfdb1cd30545b94fd5be798"
}

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 9b3d57f41bd8bb4344114c07d64943641433c6581cfdb1cd30545b94fd5be798 # MD5 a9638c4a1a8ce44236047cd6e3cd962b
TypeValueNote
sha256 9b3d57f41bd8bb4344114c07d64943641433c6581cfdb1cd30545b94fd5be798 Sample:GandCrab
md5 a9638c4a1a8ce44236047cd6e3cd962b Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi