GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256891b5d5c511cee92deadabadfb3709fa50c46b891e7fc41b36de1f640097c562
MD5e5af0e1baa429979604d5a698b4c482f
File Typeexe
Size70.0 KB
First Seen2022-08-30
File Name891b5d5c511cee92deadabadfb3709fa50c46b891e7fc41b36de1f640097c562
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: 891b5d5c511cee92deadabadfb3709fa50c46b891e7fc41b36de1f640097c562
  • MD5: e5af0e1baa429979604d5a698b4c482f

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: 891b5d5c511cee92"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "891b5d5c511cee92deadabadfb3709fa50c46b891e7fc41b36de1f640097c562"
}

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 891b5d5c511cee92deadabadfb3709fa50c46b891e7fc41b36de1f640097c562 # MD5 e5af0e1baa429979604d5a698b4c482f
TypeValueNote
sha256 891b5d5c511cee92deadabadfb3709fa50c46b891e7fc41b36de1f640097c562 Sample:GandCrab
md5 e5af0e1baa429979604d5a698b4c482f Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi