Remcos | Threat Level: high | Type: RAT

Cryptographic Identifiers

SHA256e1ad3754ce46be3a6178d6050b3bde5b84cc9c0c8c4479fae1a529cdd3c8484b
MD5b5ce7e5b550710b3ca40709b24c6bb97
File Typeexe
Size2540.6 KB
First Seen2023-05-06
File NameDOCUMENTO_REPRESENTACION_GRAFICA_ELECTRONICA_FACTURA_DE_IMPUESTOS_PENDIENTES_DE_GENERADA_POR_LIQUIDACION_OFICINA_DE_HACIENDA_Y_CARTERApdf.exe
Tags177-255-89-112, BlindEagle, exe, opendir, remcos, RemcosRAT

Malware Family: Remcos

Remcos, kötüye kullanılan RAT'tır.

TypeRAT
Programming LanguageC++
Target PlatformWindows
C2 ProtocolTCP/SSL
PurposeUzaktan izleme
First Seen Year2016
AliasesRemcosRAT

Threat Indicators (IOC)

  • SHA256: e1ad3754ce46be3a6178d6050b3bde5b84cc9c0c8c4479fae1a529cdd3c8484b
  • MD5: b5ce7e5b550710b3ca40709b24c6bb97

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 Remcos_SHA256 {
    meta:
        description = "Remcos sample: e1ad3754ce46be3a"
        threat_level = "high"
        first_seen = "2023-05-06"
    condition:
        hash.sha256(0, filesize) == "e1ad3754ce46be3a6178d6050b3bde5b84cc9c0c8c4479fae1a529cdd3c8484b"
}

Remcos — Malware Profile

RemcosRAT. SCAN DOC LOI.r00 multipart RAR. French LOI law lure. Five c2 substrings. Breaking-Security developer.

Malware Type
RAT
Programming Language
C++
C2 Protocol
TCP/SSL
Target Systems
Windows
Also Known As (AKA)
RemcosRAT

Capabilities & Behavior

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

IOC List (2 indicators)

IOC — Remcos
# SHA256 e1ad3754ce46be3a6178d6050b3bde5b84cc9c0c8c4479fae1a529cdd3c8484b # MD5 b5ce7e5b550710b3ca40709b24c6bb97
TypeValueNote
sha256 e1ad3754ce46be3a6178d6050b3bde5b84cc9c0c8c4479fae1a529cdd3c8484b Sample:Remcos
md5 b5ce7e5b550710b3ca40709b24c6bb97 Sample:Remcos

C2 Servers (3 recorded servers for this family)

Address Type Port Protocol Status Country
BreakingSecurity.net domain — HTTP active —
pro.ip-api.com domain — HTTP active —
UNKNOWN_HOST unknown 20343 TCP inactive —

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

Tags
remcosratmalwarehighsha256hash-analizi