GandCrab | Threat Level: critical | Type: Ransomware

Cryptographic Identifiers

SHA256f623e4121e415b17e66451c73ec99172846582b74a0f22ff5bb506babeff344c
MD52d703de4bf941295f37c3fa6e59254b8
File Typeexe
Size69.5 KB
First Seen2022-08-30
File Namef623e4121e415b17e66451c73ec99172846582b74a0f22ff5bb506babeff344c
Tagsexe, Gandcrab

Malware Family: GandCrab

GandCrab, MaaS'tır.

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

Threat Indicators (IOC)

  • SHA256: f623e4121e415b17e66451c73ec99172846582b74a0f22ff5bb506babeff344c
  • MD5: 2d703de4bf941295f37c3fa6e59254b8

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: f623e4121e415b17"
        threat_level = "critical"
        first_seen = "2022-08-30"
    condition:
        hash.sha256(0, filesize) == "f623e4121e415b17e66451c73ec99172846582b74a0f22ff5bb506babeff344c"
}

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 f623e4121e415b17e66451c73ec99172846582b74a0f22ff5bb506babeff344c # MD5 2d703de4bf941295f37c3fa6e59254b8
TypeValueNote
sha256 f623e4121e415b17e66451c73ec99172846582b74a0f22ff5bb506babeff344c Sample:GandCrab
md5 2d703de4bf941295f37c3fa6e59254b8 Sample:GandCrab
Tags
gandcrabransomwaremalwarecriticalsha256hash-analizi