GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256b632250b671a156587e5057603e0c6fa8d11d0f0e47ebfde8098470455ecbf88
MD5a83fef8f92198a624afa1d21fb73fef1
File Typeexe
Size73.5 KB
First Seen2022-08-30
File Nameb632250b671a156587e5057603e0c6fa8d11d0f0e47ebfde8098470455ecbf88
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: b632250b671a156587e5057603e0c6fa8d11d0f0e47ebfde8098470455ecbf88
  • MD5: a83fef8f92198a624afa1d21fb73fef1

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: b632250b671a1565"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "b632250b671a156587e5057603e0c6fa8d11d0f0e47ebfde8098470455ecbf88"
}

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 b632250b671a156587e5057603e0c6fa8d11d0f0e47ebfde8098470455ecbf88 # MD5 a83fef8f92198a624afa1d21fb73fef1
TypeValueNote
sha256 b632250b671a156587e5057603e0c6fa8d11d0f0e47ebfde8098470455ecbf88 Sample:GandCrab
md5 a83fef8f92198a624afa1d21fb73fef1 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi