GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256ae37e57b50aa7a6ea1f6b845aceeb3e7b42206fbc18af1466402843ed4fec44e
MD5a31e8f6d67601a23cad19a04aa5511b2
File Typeexe
Size70.0 KB
First Seen2023-03-07
File Name2023-03-06_a31e8f6d67601a23cad19a04aa5511b2_gandcrab
TagsGandcrab

Malware Family: GandCrab

GandCrab, en yaygın eski ransomware'dir.

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

Threat Indicators (IOC)

  • SHA256: ae37e57b50aa7a6ea1f6b845aceeb3e7b42206fbc18af1466402843ed4fec44e
  • MD5: a31e8f6d67601a23cad19a04aa5511b2

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: ae37e57b50aa7a6e"
        threat_level = "critical"
        first_seen = "2023-03-07"
    condition:
        hash.sha256(0, filesize) == "ae37e57b50aa7a6ea1f6b845aceeb3e7b42206fbc18af1466402843ed4fec44e"
}

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 ae37e57b50aa7a6ea1f6b845aceeb3e7b42206fbc18af1466402843ed4fec44e # MD5 a31e8f6d67601a23cad19a04aa5511b2
TypeValueNote
sha256 ae37e57b50aa7a6ea1f6b845aceeb3e7b42206fbc18af1466402843ed4fec44e Sample:GandCrab
md5 a31e8f6d67601a23cad19a04aa5511b2 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi