GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256ef000877278d24813d716556024dae8b8b473c8b4beeca8a480ba15404d1bd3b
MD5136f9e4a7d7e551d156fcfee478e1737
File Typeexe
Size69.5 KB
First Seen2022-08-30
File Nameef000877278d24813d716556024dae8b8b473c8b4beeca8a480ba15404d1bd3b
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: ef000877278d24813d716556024dae8b8b473c8b4beeca8a480ba15404d1bd3b
  • MD5: 136f9e4a7d7e551d156fcfee478e1737

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: ef000877278d2481"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "ef000877278d24813d716556024dae8b8b473c8b4beeca8a480ba15404d1bd3b"
}

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 ef000877278d24813d716556024dae8b8b473c8b4beeca8a480ba15404d1bd3b # MD5 136f9e4a7d7e551d156fcfee478e1737
TypeValueNote
sha256 ef000877278d24813d716556024dae8b8b473c8b4beeca8a480ba15404d1bd3b Sample:GandCrab
md5 136f9e4a7d7e551d156fcfee478e1737 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi