GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256b535d4dc180f666de891979e5d9d090c27d1eb0f252423c0b1911f1f0b9fc5b2
MD535d03057d02e656ffe148bbb2523e0c7
File Typeexe
Size248.0 KB
First Seen2023-03-16
File Nameb535d4dc180f666de891979e5d9d090c27d1eb0f252423c0b1911f1f0b9fc5b2
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: b535d4dc180f666de891979e5d9d090c27d1eb0f252423c0b1911f1f0b9fc5b2
  • MD5: 35d03057d02e656ffe148bbb2523e0c7

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: b535d4dc180f666d"
        threat_level = "critical"
        first_seen = "2023-03-16"
    condition:
        hash.sha256(0, filesize) == "b535d4dc180f666de891979e5d9d090c27d1eb0f252423c0b1911f1f0b9fc5b2"
}

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 b535d4dc180f666de891979e5d9d090c27d1eb0f252423c0b1911f1f0b9fc5b2 # MD5 35d03057d02e656ffe148bbb2523e0c7
TypeValueNote
sha256 b535d4dc180f666de891979e5d9d090c27d1eb0f252423c0b1911f1f0b9fc5b2 Sample:GandCrab
md5 35d03057d02e656ffe148bbb2523e0c7 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi