GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256d938f5731a2af15f1c84e21de05bbcac060186bd864b903322894506ff246ed1
MD54ae0a61c529630676c3a5d90fd9a11c8
File Typeexe
Size70.0 KB
First Seen2023-03-07
File Name2023-03-06_4ae0a61c529630676c3a5d90fd9a11c8_gandcrab
TagsGandcrab

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: d938f5731a2af15f1c84e21de05bbcac060186bd864b903322894506ff246ed1
  • MD5: 4ae0a61c529630676c3a5d90fd9a11c8

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: d938f5731a2af15f"
        threat_level = "critical"
        first_seen = "2023-03-07"
    condition:
        hash.sha256(0, filesize) == "d938f5731a2af15f1c84e21de05bbcac060186bd864b903322894506ff246ed1"
}

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 d938f5731a2af15f1c84e21de05bbcac060186bd864b903322894506ff246ed1 # MD5 4ae0a61c529630676c3a5d90fd9a11c8
TypeValueNote
sha256 d938f5731a2af15f1c84e21de05bbcac060186bd864b903322894506ff246ed1 Sample:GandCrab
md5 4ae0a61c529630676c3a5d90fd9a11c8 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi