GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256c37c47b83d1329ff325d7366f244ed71b6d00d1c9744fd79ce8af8239eee39d1
MD51ba539d5d38fb67be642e527c4f859a5
File Typeexe
Size276.0 KB
First Seen2023-05-12
File Name2023-05-11_1ba539d5d38fb67be642e527c4f859a5_gandcrab
TagsGandcrab

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: c37c47b83d1329ff325d7366f244ed71b6d00d1c9744fd79ce8af8239eee39d1
  • MD5: 1ba539d5d38fb67be642e527c4f859a5

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: c37c47b83d1329ff"
        threat_level = "critical"
        first_seen = "2023-05-12"
    condition:
        hash.sha256(0, filesize) == "c37c47b83d1329ff325d7366f244ed71b6d00d1c9744fd79ce8af8239eee39d1"
}

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 c37c47b83d1329ff325d7366f244ed71b6d00d1c9744fd79ce8af8239eee39d1 # MD5 1ba539d5d38fb67be642e527c4f859a5
TypeValueNote
sha256 c37c47b83d1329ff325d7366f244ed71b6d00d1c9744fd79ce8af8239eee39d1 Sample:GandCrab
md5 1ba539d5d38fb67be642e527c4f859a5 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi