GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256a49dcf85a275232c2e7d4b8c8acd3b91e0e621f0faca5a73f322bd02b5285787
MD55974c7e27a60615a8588e720cbebfa97
File Typeexe
Size69.5 KB
First Seen2022-08-30
File Namea49dcf85a275232c2e7d4b8c8acd3b91e0e621f0faca5a73f322bd02b5285787
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: a49dcf85a275232c2e7d4b8c8acd3b91e0e621f0faca5a73f322bd02b5285787
  • MD5: 5974c7e27a60615a8588e720cbebfa97

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: a49dcf85a275232c"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "a49dcf85a275232c2e7d4b8c8acd3b91e0e621f0faca5a73f322bd02b5285787"
}

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 a49dcf85a275232c2e7d4b8c8acd3b91e0e621f0faca5a73f322bd02b5285787 # MD5 5974c7e27a60615a8588e720cbebfa97
TypeValueNote
sha256 a49dcf85a275232c2e7d4b8c8acd3b91e0e621f0faca5a73f322bd02b5285787 Sample:GandCrab
md5 5974c7e27a60615a8588e720cbebfa97 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi