GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256c830bf46ac891fb8ef27a8944582ed78c7e733641ea582892ede152d38a5e6b5
MD5a30a9e809ff2de2ffe0d545e8e19eec8
File Typeexe
Size70.0 KB
First Seen2022-08-30
File Namec830bf46ac891fb8ef27a8944582ed78c7e733641ea582892ede152d38a5e6b5
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: c830bf46ac891fb8ef27a8944582ed78c7e733641ea582892ede152d38a5e6b5
  • MD5: a30a9e809ff2de2ffe0d545e8e19eec8

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: c830bf46ac891fb8"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "c830bf46ac891fb8ef27a8944582ed78c7e733641ea582892ede152d38a5e6b5"
}

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 c830bf46ac891fb8ef27a8944582ed78c7e733641ea582892ede152d38a5e6b5 # MD5 a30a9e809ff2de2ffe0d545e8e19eec8
TypeValueNote
sha256 c830bf46ac891fb8ef27a8944582ed78c7e733641ea582892ede152d38a5e6b5 Sample:GandCrab
md5 a30a9e809ff2de2ffe0d545e8e19eec8 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi