GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256a8c8893d9c16dc55612f4e286ac8bf946aeb6de38b79357ff8197d35a25a1bb7
MD5c712ab2e53ba0f3c9a80011612b489a6
File Typeexe
Size73.5 KB
First Seen2022-08-30
File Namea8c8893d9c16dc55612f4e286ac8bf946aeb6de38b79357ff8197d35a25a1bb7
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: a8c8893d9c16dc55612f4e286ac8bf946aeb6de38b79357ff8197d35a25a1bb7
  • MD5: c712ab2e53ba0f3c9a80011612b489a6

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: a8c8893d9c16dc55"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "a8c8893d9c16dc55612f4e286ac8bf946aeb6de38b79357ff8197d35a25a1bb7"
}

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 a8c8893d9c16dc55612f4e286ac8bf946aeb6de38b79357ff8197d35a25a1bb7 # MD5 c712ab2e53ba0f3c9a80011612b489a6
TypeValueNote
sha256 a8c8893d9c16dc55612f4e286ac8bf946aeb6de38b79357ff8197d35a25a1bb7 Sample:GandCrab
md5 c712ab2e53ba0f3c9a80011612b489a6 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi