GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256e041f63cab919d1af8614fb83b362cbff733bd06bc89d30cd04dcea3fac8651f
MD54d68c9b40f348262248e55ec972892ab
File Typeexe
Size141.0 KB
First Seen2023-08-22
File Name2023-08-22_4d68c9b40f348262248e55ec972892ab_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: e041f63cab919d1af8614fb83b362cbff733bd06bc89d30cd04dcea3fac8651f
  • MD5: 4d68c9b40f348262248e55ec972892ab

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: e041f63cab919d1a"
        threat_level = "critical"
        first_seen = "2023-08-22"
    condition:
        hash.sha256(0, filesize) == "e041f63cab919d1af8614fb83b362cbff733bd06bc89d30cd04dcea3fac8651f"
}

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 e041f63cab919d1af8614fb83b362cbff733bd06bc89d30cd04dcea3fac8651f # MD5 4d68c9b40f348262248e55ec972892ab
TypeValueNote
sha256 e041f63cab919d1af8614fb83b362cbff733bd06bc89d30cd04dcea3fac8651f Sample:GandCrab
md5 4d68c9b40f348262248e55ec972892ab Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi