GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256acf73b36a50637a13559a5cb21ad50a807a6125138cfc80513faa4a2dc6e101c
MD535928c87aee3f01859427b1a87d0626b
File Typeexe
Size73.5 KB
First Seen2022-08-30
File Nameacf73b36a50637a13559a5cb21ad50a807a6125138cfc80513faa4a2dc6e101c
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: acf73b36a50637a13559a5cb21ad50a807a6125138cfc80513faa4a2dc6e101c
  • MD5: 35928c87aee3f01859427b1a87d0626b

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: acf73b36a50637a1"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "acf73b36a50637a13559a5cb21ad50a807a6125138cfc80513faa4a2dc6e101c"
}

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 acf73b36a50637a13559a5cb21ad50a807a6125138cfc80513faa4a2dc6e101c # MD5 35928c87aee3f01859427b1a87d0626b
TypeValueNote
sha256 acf73b36a50637a13559a5cb21ad50a807a6125138cfc80513faa4a2dc6e101c Sample:GandCrab
md5 35928c87aee3f01859427b1a87d0626b Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi