GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA2566681ec1c4e825eab08355fba96e0b936366e72a4339536dd407cfbe9a1d20107
MD5c617bf08bb47ad37516a2c90529eacda
File Typeexe
Size69.5 KB
First Seen2022-08-30
File Name6681ec1c4e825eab08355fba96e0b936366e72a4339536dd407cfbe9a1d20107
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: 6681ec1c4e825eab08355fba96e0b936366e72a4339536dd407cfbe9a1d20107
  • MD5: c617bf08bb47ad37516a2c90529eacda

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: 6681ec1c4e825eab"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "6681ec1c4e825eab08355fba96e0b936366e72a4339536dd407cfbe9a1d20107"
}

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 6681ec1c4e825eab08355fba96e0b936366e72a4339536dd407cfbe9a1d20107 # MD5 c617bf08bb47ad37516a2c90529eacda
TypeValueNote
sha256 6681ec1c4e825eab08355fba96e0b936366e72a4339536dd407cfbe9a1d20107 Sample:GandCrab
md5 c617bf08bb47ad37516a2c90529eacda Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi