GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA2564227a52b20a99352a0b27be604960bc3ca6e8eb9a309db5ee0f4fba9ddc79377
MD572f47fb9756220be656910de91133d13
File Typeexe
Size69.5 KB
First Seen2022-08-30
File Name4227a52b20a99352a0b27be604960bc3ca6e8eb9a309db5ee0f4fba9ddc79377
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: 4227a52b20a99352a0b27be604960bc3ca6e8eb9a309db5ee0f4fba9ddc79377
  • MD5: 72f47fb9756220be656910de91133d13

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: 4227a52b20a99352"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "4227a52b20a99352a0b27be604960bc3ca6e8eb9a309db5ee0f4fba9ddc79377"
}

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 4227a52b20a99352a0b27be604960bc3ca6e8eb9a309db5ee0f4fba9ddc79377 # MD5 72f47fb9756220be656910de91133d13
TypeValueNote
sha256 4227a52b20a99352a0b27be604960bc3ca6e8eb9a309db5ee0f4fba9ddc79377 Sample:GandCrab
md5 72f47fb9756220be656910de91133d13 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi