GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA2564a8f8f9657e4bc42219c0259a2cbcdc2a0cd0e0ca4e7aa4cb893b02add076a9b
MD50c614ce1f9cfb6c29e2f54d6b54346af
File Typeexe
Size196.5 KB
First Seen2022-08-30
File Name4a8f8f9657e4bc42219c0259a2cbcdc2a0cd0e0ca4e7aa4cb893b02add076a9b
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: 4a8f8f9657e4bc42219c0259a2cbcdc2a0cd0e0ca4e7aa4cb893b02add076a9b
  • MD5: 0c614ce1f9cfb6c29e2f54d6b54346af

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: 4a8f8f9657e4bc42"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "4a8f8f9657e4bc42219c0259a2cbcdc2a0cd0e0ca4e7aa4cb893b02add076a9b"
}

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 4a8f8f9657e4bc42219c0259a2cbcdc2a0cd0e0ca4e7aa4cb893b02add076a9b # MD5 0c614ce1f9cfb6c29e2f54d6b54346af
TypeValueNote
sha256 4a8f8f9657e4bc42219c0259a2cbcdc2a0cd0e0ca4e7aa4cb893b02add076a9b Sample:GandCrab
md5 0c614ce1f9cfb6c29e2f54d6b54346af Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi