GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA2564398a8a6ead4a1df74d410354ac47a99ab1c8a9d8a197622e8be53c29fa8dbd8
MD5650859deb1d1caee692a1800a551710f
File Typeexe
Size69.5 KB
First Seen2022-08-30
File Name4398a8a6ead4a1df74d410354ac47a99ab1c8a9d8a197622e8be53c29fa8dbd8
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: 4398a8a6ead4a1df74d410354ac47a99ab1c8a9d8a197622e8be53c29fa8dbd8
  • MD5: 650859deb1d1caee692a1800a551710f

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: 4398a8a6ead4a1df"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "4398a8a6ead4a1df74d410354ac47a99ab1c8a9d8a197622e8be53c29fa8dbd8"
}

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 4398a8a6ead4a1df74d410354ac47a99ab1c8a9d8a197622e8be53c29fa8dbd8 # MD5 650859deb1d1caee692a1800a551710f
TypeValueNote
sha256 4398a8a6ead4a1df74d410354ac47a99ab1c8a9d8a197622e8be53c29fa8dbd8 Sample:GandCrab
md5 650859deb1d1caee692a1800a551710f Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi