GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA25663ead7101148bab37e009da2b9969da6afcf47fffef3c2e09382ca17e0162015
MD567a42d22d97467e277d0027913cb9b8a
File Typeexe
Size16384.0 KB
First Seen2023-05-08
File Name2023-05-07_67a42d22d97467e277d0027913cb9b8a_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: 63ead7101148bab37e009da2b9969da6afcf47fffef3c2e09382ca17e0162015
  • MD5: 67a42d22d97467e277d0027913cb9b8a

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: 63ead7101148bab3"
        threat_level = "critical"
        first_seen = "2023-05-08"
    condition:
        hash.sha256(0, filesize) == "63ead7101148bab37e009da2b9969da6afcf47fffef3c2e09382ca17e0162015"
}

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 63ead7101148bab37e009da2b9969da6afcf47fffef3c2e09382ca17e0162015 # MD5 67a42d22d97467e277d0027913cb9b8a
TypeValueNote
sha256 63ead7101148bab37e009da2b9969da6afcf47fffef3c2e09382ca17e0162015 Sample:GandCrab
md5 67a42d22d97467e277d0027913cb9b8a Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi