GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256f884cf8f7843f571b7e6f439aeeddd29d5cd9944cb8d471fcd71d346661bc70f
MD5c44c7ec5aceb85659f464cde0914f4fc
File Typeexe
Size73.5 KB
First Seen2022-08-30
File Namef884cf8f7843f571b7e6f439aeeddd29d5cd9944cb8d471fcd71d346661bc70f
Tagsexe, Gandcrab

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: f884cf8f7843f571b7e6f439aeeddd29d5cd9944cb8d471fcd71d346661bc70f
  • MD5: c44c7ec5aceb85659f464cde0914f4fc

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: f884cf8f7843f571"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "f884cf8f7843f571b7e6f439aeeddd29d5cd9944cb8d471fcd71d346661bc70f"
}

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 f884cf8f7843f571b7e6f439aeeddd29d5cd9944cb8d471fcd71d346661bc70f # MD5 c44c7ec5aceb85659f464cde0914f4fc
TypeValueNote
sha256 f884cf8f7843f571b7e6f439aeeddd29d5cd9944cb8d471fcd71d346661bc70f Sample:GandCrab
md5 c44c7ec5aceb85659f464cde0914f4fc Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi