GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA2564640bf5519f99f882e11429e85fc28c3c4a563e2432ecd8d7c036e274074b298
MD575c2dde274dc1521a007ba171a53b502
File Typeexe
Size69.5 KB
First Seen2022-08-30
File Name4640bf5519f99f882e11429e85fc28c3c4a563e2432ecd8d7c036e274074b298
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: 4640bf5519f99f882e11429e85fc28c3c4a563e2432ecd8d7c036e274074b298
  • MD5: 75c2dde274dc1521a007ba171a53b502

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: 4640bf5519f99f88"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "4640bf5519f99f882e11429e85fc28c3c4a563e2432ecd8d7c036e274074b298"
}

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 4640bf5519f99f882e11429e85fc28c3c4a563e2432ecd8d7c036e274074b298 # MD5 75c2dde274dc1521a007ba171a53b502
TypeValueNote
sha256 4640bf5519f99f882e11429e85fc28c3c4a563e2432ecd8d7c036e274074b298 Sample:GandCrab
md5 75c2dde274dc1521a007ba171a53b502 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi