GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA2569546a28891570cd46eab1946fb284b32e02254f431b585287412d2cbaf1345c0
MD58ff6de4a3995b3ebd626b793af83f868
File Typeexe
Size70.0 KB
First Seen2022-08-30
File Name9546a28891570cd46eab1946fb284b32e02254f431b585287412d2cbaf1345c0
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: 9546a28891570cd46eab1946fb284b32e02254f431b585287412d2cbaf1345c0
  • MD5: 8ff6de4a3995b3ebd626b793af83f868

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: 9546a28891570cd4"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "9546a28891570cd46eab1946fb284b32e02254f431b585287412d2cbaf1345c0"
}

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 9546a28891570cd46eab1946fb284b32e02254f431b585287412d2cbaf1345c0 # MD5 8ff6de4a3995b3ebd626b793af83f868
TypeValueNote
sha256 9546a28891570cd46eab1946fb284b32e02254f431b585287412d2cbaf1345c0 Sample:GandCrab
md5 8ff6de4a3995b3ebd626b793af83f868 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi