GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA2560a6c62c139aa9baf898add2a10fada3d49f78b3089507b84e613868242e169b8
MD5b9bb0a0cff8d16143c50af7c71b22f5d
File Typeexe
Size70.0 KB
First Seen2023-03-08
File Name2023-03-07_b9bb0a0cff8d16143c50af7c71b22f5d_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: 0a6c62c139aa9baf898add2a10fada3d49f78b3089507b84e613868242e169b8
  • MD5: b9bb0a0cff8d16143c50af7c71b22f5d

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: 0a6c62c139aa9baf"
        threat_level = "critical"
        first_seen = "2023-03-08"
    condition:
        hash.sha256(0, filesize) == "0a6c62c139aa9baf898add2a10fada3d49f78b3089507b84e613868242e169b8"
}

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 0a6c62c139aa9baf898add2a10fada3d49f78b3089507b84e613868242e169b8 # MD5 b9bb0a0cff8d16143c50af7c71b22f5d
TypeValueNote
sha256 0a6c62c139aa9baf898add2a10fada3d49f78b3089507b84e613868242e169b8 Sample:GandCrab
md5 b9bb0a0cff8d16143c50af7c71b22f5d Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi