GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256291865e1c808938faba0bdaee22b08acf06caf488f74615abd1b03e7f766f828
MD5bd5d5bac9fcf72344c04c9c74e5e4e81
File Typeexe
Size70.0 KB
First Seen2022-08-30
File Name291865e1c808938faba0bdaee22b08acf06caf488f74615abd1b03e7f766f828
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: 291865e1c808938faba0bdaee22b08acf06caf488f74615abd1b03e7f766f828
  • MD5: bd5d5bac9fcf72344c04c9c74e5e4e81

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: 291865e1c808938f"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "291865e1c808938faba0bdaee22b08acf06caf488f74615abd1b03e7f766f828"
}

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 291865e1c808938faba0bdaee22b08acf06caf488f74615abd1b03e7f766f828 # MD5 bd5d5bac9fcf72344c04c9c74e5e4e81
TypeValueNote
sha256 291865e1c808938faba0bdaee22b08acf06caf488f74615abd1b03e7f766f828 Sample:GandCrab
md5 bd5d5bac9fcf72344c04c9c74e5e4e81 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi