GuLoader | Threat Level: medium | Type: Loader

Cryptographic Identifiers

SHA256dd70f6f9b5276fdb2e2c79d6650e993c7dd08fc34a3529ddfb10744dabd645e8
MD5664cdb7f652f865793113d61421217c9
File Typejs
Size317.1 KB
First Seen2026-06-01
File NameIMG - stampa il campione di pagamento di 2 pagine in 1 A4..js
Tags192-227-135-225, GuLoader, js, Spam-ITA

Malware Family: GuLoader

GuLoader, bulut downloader'dır.

TypeLoader
Programming LanguageC
Target PlatformWindows
C2 ProtocolHTTPS
PurposePayload indirme
First Seen Year2019
AliasesCloudEyE

Threat Indicators (IOC)

  • SHA256: dd70f6f9b5276fdb2e2c79d6650e993c7dd08fc34a3529ddfb10744dabd645e8
  • MD5: 664cdb7f652f865793113d61421217c9

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

System Cleanup Guide

  1. Disconnect the system from the network — the loader may be downloading more malware
  2. Analyze every downloaded payload
  3. Inspect all network traffic and cut suspicious connections
  4. Run a full antivirus scan
  5. Consider reimaging the system

YARA Rule Hints

rule GuLoader_SHA256 {
    meta:
        description = "GuLoader sample: dd70f6f9b5276fdb"
        threat_level = "medium"
        first_seen = "2026-06-01"
    condition:
        hash.sha256(0, filesize) == "dd70f6f9b5276fdb2e2c79d6650e993c7dd08fc34a3529ddfb10744dabd645e8"
}

GuLoader — Malware Profile

GuLoader/CloudEyE NSIS/VB dropper. recibo Ispanyolca makbuz. Çift locale tespiti. Registry silme.

Malware Type
Loader
Programming Language
C
C2 Protocol
HTTPS
Target Systems
Windows
Also Known As (AKA)
CloudEyE

Technical Details

Varyanta gore C/C#/VBS/PS1, anti-analysis (VM/debugger check), persistence (Registry/Task Scheduler/Startup folder), payload decryption ve injection (shellcode/PE), fileless execution teknikleri

Capabilities & Behavior

Payload İndirme
Süreç Enjeksiyonu
Modüler Mimari
Kimlik Bilgisi Hırsızlığı
Yanal Hareket
Kalıcılık
Anti-VM/Sandbox
İkincil Payload Dağıtımı

IOC List (2 indicators)

IOC — GuLoader
# SHA256 dd70f6f9b5276fdb2e2c79d6650e993c7dd08fc34a3529ddfb10744dabd645e8 # MD5 664cdb7f652f865793113d61421217c9
TypeValueNote
sha256 dd70f6f9b5276fdb2e2c79d6650e993c7dd08fc34a3529ddfb10744dabd645e8 Sample:GuLoader
md5 664cdb7f652f865793113d61421217c9 Sample:GuLoader

C2 Servers (4 recorded servers for this family)

Address Type Port Protocol Status Country
45.155.37.29 ip 443 HTTPS inactive RU
onedrive-cloud-storage.com domain 443 HTTPS inactive US
179.60.150.11 ip 80 HTTP inactive SE
185.250.151.13 ip 443 HTTPS inactive DE

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

Tags
guloaderloadermalwaremediumsha256hash-analizi