GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA2568723ec9a0f117eda5f8fba7c2766082af4301593bbb7dda11420182ca93e5746
MD5de4b345a676da185d23cd5801d0b0c17
File Typeexe
Size236.0 KB
First Seen2022-11-30
File Name9d554532cf28d1496f55ed4f8f0cd24a380608c6
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: 8723ec9a0f117eda5f8fba7c2766082af4301593bbb7dda11420182ca93e5746
  • MD5: de4b345a676da185d23cd5801d0b0c17

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: 8723ec9a0f117eda"
        threat_level = "critical"
        first_seen = "2022-11-30"
    condition:
        hash.sha256(0, filesize) == "8723ec9a0f117eda5f8fba7c2766082af4301593bbb7dda11420182ca93e5746"
}

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 8723ec9a0f117eda5f8fba7c2766082af4301593bbb7dda11420182ca93e5746 # MD5 de4b345a676da185d23cd5801d0b0c17
TypeValueNote
sha256 8723ec9a0f117eda5f8fba7c2766082af4301593bbb7dda11420182ca93e5746 Sample:GandCrab
md5 de4b345a676da185d23cd5801d0b0c17 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi