GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256c49da39c9668e24811c602d80876249e5ec0447644ae50b4d507a5e1db277765
MD5ac7abbd7f04d0c4e408f51f2158947e5
File Typeexe
Size97.5 KB
First Seen2022-08-30
File Namec49da39c9668e24811c602d80876249e5ec0447644ae50b4d507a5e1db277765
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: c49da39c9668e24811c602d80876249e5ec0447644ae50b4d507a5e1db277765
  • MD5: ac7abbd7f04d0c4e408f51f2158947e5

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: c49da39c9668e248"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "c49da39c9668e24811c602d80876249e5ec0447644ae50b4d507a5e1db277765"
}

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 c49da39c9668e24811c602d80876249e5ec0447644ae50b4d507a5e1db277765 # MD5 ac7abbd7f04d0c4e408f51f2158947e5
TypeValueNote
sha256 c49da39c9668e24811c602d80876249e5ec0447644ae50b4d507a5e1db277765 Sample:GandCrab
md5 ac7abbd7f04d0c4e408f51f2158947e5 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi