GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256fb27687e6eb489f4d04491e9521427b6001d904b70f012b1a2f0966757685754
MD522c74e74d217ae652dfd617fb94f06a0
File Typedll
Size76.0 KB
First Seen2022-08-30
File Namefb27687e6eb489f4d04491e9521427b6001d904b70f012b1a2f0966757685754
Tagsdll, 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: fb27687e6eb489f4d04491e9521427b6001d904b70f012b1a2f0966757685754
  • MD5: 22c74e74d217ae652dfd617fb94f06a0

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: fb27687e6eb489f4"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "fb27687e6eb489f4d04491e9521427b6001d904b70f012b1a2f0966757685754"
}

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 fb27687e6eb489f4d04491e9521427b6001d904b70f012b1a2f0966757685754 # MD5 22c74e74d217ae652dfd617fb94f06a0
TypeValueNote
sha256 fb27687e6eb489f4d04491e9521427b6001d904b70f012b1a2f0966757685754 Sample:GandCrab
md5 22c74e74d217ae652dfd617fb94f06a0 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi