GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA25618743a23b8bc599fc58673156afbdfb7768a7664f0b04b566f25fcf510c56a32
MD55fefd66b12152020322e5c3d18a06391
File Typeexe
Size69.5 KB
First Seen2022-08-30
File Name18743a23b8bc599fc58673156afbdfb7768a7664f0b04b566f25fcf510c56a32
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: 18743a23b8bc599fc58673156afbdfb7768a7664f0b04b566f25fcf510c56a32
  • MD5: 5fefd66b12152020322e5c3d18a06391

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: 18743a23b8bc599f"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "18743a23b8bc599fc58673156afbdfb7768a7664f0b04b566f25fcf510c56a32"
}

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 18743a23b8bc599fc58673156afbdfb7768a7664f0b04b566f25fcf510c56a32 # MD5 5fefd66b12152020322e5c3d18a06391
TypeValueNote
sha256 18743a23b8bc599fc58673156afbdfb7768a7664f0b04b566f25fcf510c56a32 Sample:GandCrab
md5 5fefd66b12152020322e5c3d18a06391 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi