DCRat | Threat Level: high | Type: RAT

Cryptographic Identifiers

SHA25659d5df6b32ee3f1a30281fca62bc6fd7ceca2f561442495ba4a03a7cbeb227cd
MD5db25fd7f325f5ea6cd5c0ee5f8af8d22
File Typeexe
Size5885.4 KB
First Seen2025-04-25
File Namedb25fd7f325f5ea6cd5c0ee5f8af8d22.exe
Tags185-39-17-70, AsyncRAT, booking, ClickFix, DCRat, exe, FakeCaptcha, RAT, signed, Spam-ITA

Malware Family: DCRat

DCRat, modüler RAT'tır.

TypeRAT
Programming LanguageC#/.NET
Target PlatformWindows
C2 ProtocolHTTP
PurposePlugin tabanlı RAT
First Seen Year2019
AliasesDarkCrystal

Threat Indicators (IOC)

  • SHA256: 59d5df6b32ee3f1a30281fca62bc6fd7ceca2f561442495ba4a03a7cbeb227cd
  • MD5: db25fd7f325f5ea6cd5c0ee5f8af8d22

You can verify all hash values of this sample on VirusTotal.

System Cleanup Guide

  1. Disconnect the system from the network — unplug ethernet, disable Wi-Fi
  2. Terminate suspicious processes from Task Manager
  3. Run a full system scan with Malwarebytes or Kaspersky
  4. HKCU\Software\Microsoft\Windows\CurrentVersion\Run kayıtlarını kontrol edin
  5. Review newly created tasks in Task Scheduler
  6. Change all your account passwords from a clean device
  7. Gerekirse Windows'u yeniden yükleyin ve verilerinizi temiz bir yedeğe geri alın

YARA Rule Hints

rule DCRat_SHA256 {
    meta:
        description = "DCRat sample: 59d5df6b32ee3f1a"
        threat_level = "high"
        first_seen = "2025-04-25"
    condition:
        hash.sha256(0, filesize) == "59d5df6b32ee3f1a30281fca62bc6fd7ceca2f561442495ba4a03a7cbeb227cd"
}

DCRat — Malware Profile

DCRat Rusça RAT. sostener1.vbs VBScript dropper. PowerShell ExecutionPolicy Bypass. geutqmonpmjthuux.ru DGA C2.

Malware Type
RAT
Programming Language
C#/.NET
C2 Protocol
HTTP
Target Systems
Windows
Also Known As (AKA)
DarkCrystal

Technical Details

.NET C#, AES-128-CBC sifreleme, plugin mimarisi (DLLler), TCP varsayilan port 5552, SQLite lokal depolama, Anti-VM/Sandbox (Process check, Registry), Loader, Stealer, RAT modulleri ayri

Capabilities & Behavior

Uzaktan Erişim & Kontrol
Keylogger
Ekran Görüntüsü
Webcam Erişimi
Dosya Yönetimi
Süreç Yönetimi
Komut Yürütme
Kalıcılık Mekanizması

IOC List (2 indicators)

IOC — DCRat
# SHA256 59d5df6b32ee3f1a30281fca62bc6fd7ceca2f561442495ba4a03a7cbeb227cd # MD5 db25fd7f325f5ea6cd5c0ee5f8af8d22
TypeValueNote
sha256 59d5df6b32ee3f1a30281fca62bc6fd7ceca2f561442495ba4a03a7cbeb227cd Sample:DCRat
md5 db25fd7f325f5ea6cd5c0ee5f8af8d22 Sample:DCRat

C2 Servers (8 recorded servers for this family)

Address Type Port Protocol Status Country
microsoft.com domain — TCP active —
digicert.com domain — TCP active —
crypto.io domain — TCP active —
microsoft.com domain — TCP active —
microsoft.com domain — TCP active —
microsoft.com domain — TCP active —
microsoft.com domain — TCP active —
microsoft.com domain — TCP active —

C2 addresses are provided only from malware samples manually verified by the KEYDAL team. Commercial use is prohibited.

Tags
dcratratmalwarehighsha256hash-analizi