DCRat | Threat Level: high | Type: RAT

Cryptographic Identifiers

SHA2563be674bc5cbe26b2934b4d4e84651e10afc426d38c7787682f674b9edb77633f
MD5b9ed3c4f50fe2bef0dd4ab5b05f613b4
File Typeexe
Size1137.1 KB
First Seen2025-09-19
File NameB9ED3C4F50FE2BEF0DD4AB5B05F613B4.exe
TagsDCRat, exe, RAT

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: 3be674bc5cbe26b2934b4d4e84651e10afc426d38c7787682f674b9edb77633f
  • MD5: b9ed3c4f50fe2bef0dd4ab5b05f613b4

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: 3be674bc5cbe26b2"
        threat_level = "high"
        first_seen = "2025-09-19"
    condition:
        hash.sha256(0, filesize) == "3be674bc5cbe26b2934b4d4e84651e10afc426d38c7787682f674b9edb77633f"
}

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 3be674bc5cbe26b2934b4d4e84651e10afc426d38c7787682f674b9edb77633f # MD5 b9ed3c4f50fe2bef0dd4ab5b05f613b4
TypeValueNote
sha256 3be674bc5cbe26b2934b4d4e84651e10afc426d38c7787682f674b9edb77633f Sample:DCRat
md5 b9ed3c4f50fe2bef0dd4ab5b05f613b4 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