GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256e75715cec331e8848e56834721ee6c09f8b8093a74fc591c817139d6c4175eee
MD5246e03f0db0a7a8c5f7f4ad57e651c43
File Typeexe
Size70.0 KB
First Seen2023-04-19
File Name2023-04-18_246e03f0db0a7a8c5f7f4ad57e651c43_gandcrab
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: e75715cec331e8848e56834721ee6c09f8b8093a74fc591c817139d6c4175eee
  • MD5: 246e03f0db0a7a8c5f7f4ad57e651c43

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: e75715cec331e884"
        threat_level = "critical"
        first_seen = "2023-04-19"
    condition:
        hash.sha256(0, filesize) == "e75715cec331e8848e56834721ee6c09f8b8093a74fc591c817139d6c4175eee"
}

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 e75715cec331e8848e56834721ee6c09f8b8093a74fc591c817139d6c4175eee # MD5 246e03f0db0a7a8c5f7f4ad57e651c43
TypeValueNote
sha256 e75715cec331e8848e56834721ee6c09f8b8093a74fc591c817139d6c4175eee Sample:GandCrab
md5 246e03f0db0a7a8c5f7f4ad57e651c43 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi