GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA25628e7881a53304fa602587053ff8d92e9d03f30c0204de456768e0523daa893ef
MD534074a625609e156de42ca6e0405edb9
File Typeexe
Size70.0 KB
First Seen2022-08-30
File Name28e7881a53304fa602587053ff8d92e9d03f30c0204de456768e0523daa893ef
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: 28e7881a53304fa602587053ff8d92e9d03f30c0204de456768e0523daa893ef
  • MD5: 34074a625609e156de42ca6e0405edb9

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: 28e7881a53304fa6"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "28e7881a53304fa602587053ff8d92e9d03f30c0204de456768e0523daa893ef"
}

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 28e7881a53304fa602587053ff8d92e9d03f30c0204de456768e0523daa893ef # MD5 34074a625609e156de42ca6e0405edb9
TypeValueNote
sha256 28e7881a53304fa602587053ff8d92e9d03f30c0204de456768e0523daa893ef Sample:GandCrab
md5 34074a625609e156de42ca6e0405edb9 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi