GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256f0aaba0b2b0103de760ac304e936b4a1cb0ce006e417628253f29b4f220328d2
MD5c99f28844430e3b22458bb4a2d490748
File Typeexe
Size586.0 KB
First Seen2023-12-16
File Nameb37.exe
Tagsexe, Gandcrab

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: f0aaba0b2b0103de760ac304e936b4a1cb0ce006e417628253f29b4f220328d2
  • MD5: c99f28844430e3b22458bb4a2d490748

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: f0aaba0b2b0103de"
        threat_level = "critical"
        first_seen = "2023-12-16"
    condition:
        hash.sha256(0, filesize) == "f0aaba0b2b0103de760ac304e936b4a1cb0ce006e417628253f29b4f220328d2"
}

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 f0aaba0b2b0103de760ac304e936b4a1cb0ce006e417628253f29b4f220328d2 # MD5 c99f28844430e3b22458bb4a2d490748
TypeValueNote
sha256 f0aaba0b2b0103de760ac304e936b4a1cb0ce006e417628253f29b4f220328d2 Sample:GandCrab
md5 c99f28844430e3b22458bb4a2d490748 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi