GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA25645fabeb3ed64e463b15982dfc3e1d158456190f3f2d56bd0ab1fb1a84c0c1b13
MD5a7483aa9a7f9ad3c7bf05f8134d429ac
File Typeexe
Size69.5 KB
First Seen2022-08-30
File Name45fabeb3ed64e463b15982dfc3e1d158456190f3f2d56bd0ab1fb1a84c0c1b13
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: 45fabeb3ed64e463b15982dfc3e1d158456190f3f2d56bd0ab1fb1a84c0c1b13
  • MD5: a7483aa9a7f9ad3c7bf05f8134d429ac

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: 45fabeb3ed64e463"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "45fabeb3ed64e463b15982dfc3e1d158456190f3f2d56bd0ab1fb1a84c0c1b13"
}

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 45fabeb3ed64e463b15982dfc3e1d158456190f3f2d56bd0ab1fb1a84c0c1b13 # MD5 a7483aa9a7f9ad3c7bf05f8134d429ac
TypeValueNote
sha256 45fabeb3ed64e463b15982dfc3e1d158456190f3f2d56bd0ab1fb1a84c0c1b13 Sample:GandCrab
md5 a7483aa9a7f9ad3c7bf05f8134d429ac Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi