GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256a1cbd6441639aeb14581f4b19d9488b886881321497e44914a8170707bd24b1f
MD5db4e119ed7a6f97408aa70ea55d63939
File Typeexe
Size73.5 KB
First Seen2022-08-30
File Namea1cbd6441639aeb14581f4b19d9488b886881321497e44914a8170707bd24b1f
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: a1cbd6441639aeb14581f4b19d9488b886881321497e44914a8170707bd24b1f
  • MD5: db4e119ed7a6f97408aa70ea55d63939

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: a1cbd6441639aeb1"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "a1cbd6441639aeb14581f4b19d9488b886881321497e44914a8170707bd24b1f"
}

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 a1cbd6441639aeb14581f4b19d9488b886881321497e44914a8170707bd24b1f # MD5 db4e119ed7a6f97408aa70ea55d63939
TypeValueNote
sha256 a1cbd6441639aeb14581f4b19d9488b886881321497e44914a8170707bd24b1f Sample:GandCrab
md5 db4e119ed7a6f97408aa70ea55d63939 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi