GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA2564bda35ffc666fdff32fdeb033614f25985899e956458ded6ba65f2146a83f54d
MD553e98980e470c85eec2dcbe106aa6d07
File Typeexe
Size97.5 KB
First Seen2022-08-30
File Name4bda35ffc666fdff32fdeb033614f25985899e956458ded6ba65f2146a83f54d
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: 4bda35ffc666fdff32fdeb033614f25985899e956458ded6ba65f2146a83f54d
  • MD5: 53e98980e470c85eec2dcbe106aa6d07

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: 4bda35ffc666fdff"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "4bda35ffc666fdff32fdeb033614f25985899e956458ded6ba65f2146a83f54d"
}

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 4bda35ffc666fdff32fdeb033614f25985899e956458ded6ba65f2146a83f54d # MD5 53e98980e470c85eec2dcbe106aa6d07
TypeValueNote
sha256 4bda35ffc666fdff32fdeb033614f25985899e956458ded6ba65f2146a83f54d Sample:GandCrab
md5 53e98980e470c85eec2dcbe106aa6d07 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi