GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA2568d4dfefcc7a6e1833191a0f58e9da8dcd0430b646be8d92213fde743a0e450c6
MD5f8416cdd4594d9a33c272010bb0b50c8
File Typeexe
Size97.5 KB
First Seen2022-08-30
File Name8d4dfefcc7a6e1833191a0f58e9da8dcd0430b646be8d92213fde743a0e450c6
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: 8d4dfefcc7a6e1833191a0f58e9da8dcd0430b646be8d92213fde743a0e450c6
  • MD5: f8416cdd4594d9a33c272010bb0b50c8

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: 8d4dfefcc7a6e183"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "8d4dfefcc7a6e1833191a0f58e9da8dcd0430b646be8d92213fde743a0e450c6"
}

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 8d4dfefcc7a6e1833191a0f58e9da8dcd0430b646be8d92213fde743a0e450c6 # MD5 f8416cdd4594d9a33c272010bb0b50c8
TypeValueNote
sha256 8d4dfefcc7a6e1833191a0f58e9da8dcd0430b646be8d92213fde743a0e450c6 Sample:GandCrab
md5 f8416cdd4594d9a33c272010bb0b50c8 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi