GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256df6461ecb4ab404e166d4b895ed6a5ec9f4e84f050d50ef5d6e2e7d2b10ec72c
MD5e0581f5c446f5b0f39cef2ce70349f81
File Typeexe
Size69.5 KB
First Seen2022-08-30
File Namedf6461ecb4ab404e166d4b895ed6a5ec9f4e84f050d50ef5d6e2e7d2b10ec72c
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: df6461ecb4ab404e166d4b895ed6a5ec9f4e84f050d50ef5d6e2e7d2b10ec72c
  • MD5: e0581f5c446f5b0f39cef2ce70349f81

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: df6461ecb4ab404e"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "df6461ecb4ab404e166d4b895ed6a5ec9f4e84f050d50ef5d6e2e7d2b10ec72c"
}

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 df6461ecb4ab404e166d4b895ed6a5ec9f4e84f050d50ef5d6e2e7d2b10ec72c # MD5 e0581f5c446f5b0f39cef2ce70349f81
TypeValueNote
sha256 df6461ecb4ab404e166d4b895ed6a5ec9f4e84f050d50ef5d6e2e7d2b10ec72c Sample:GandCrab
md5 e0581f5c446f5b0f39cef2ce70349f81 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi