GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA25657a33381892ffff31805779ce00391888ee8e2ef9f097709fde7b4ddd30433bc
MD51cfabc86d2146e1ad3e521047e220ecc
File Typeexe
Size70.0 KB
First Seen2022-08-30
File Name57a33381892ffff31805779ce00391888ee8e2ef9f097709fde7b4ddd30433bc
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: 57a33381892ffff31805779ce00391888ee8e2ef9f097709fde7b4ddd30433bc
  • MD5: 1cfabc86d2146e1ad3e521047e220ecc

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: 57a33381892ffff3"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "57a33381892ffff31805779ce00391888ee8e2ef9f097709fde7b4ddd30433bc"
}

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 57a33381892ffff31805779ce00391888ee8e2ef9f097709fde7b4ddd30433bc # MD5 1cfabc86d2146e1ad3e521047e220ecc
TypeValueNote
sha256 57a33381892ffff31805779ce00391888ee8e2ef9f097709fde7b4ddd30433bc Sample:GandCrab
md5 1cfabc86d2146e1ad3e521047e220ecc Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi