GuLoader | Threat Level: medium | Type: Loader

Cryptographic Identifiers

SHA256fd47d0155c7979a735fb0a377cb48198d714df851ef9d7a09f6a47349ef867da
MD5406408c4a6c3920362a7e0d4bbce0560
File Typeexe
Size521.8 KB
First Seen2026-03-06
File Namefd47d0155c7979a735fb0a377cb48198d714df851ef9d7a09f6a47349ef867da
Tagsexe, GuLoader, signed

Malware Family: GuLoader

GuLoader, bulut downloader'dır.

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

Threat Indicators (IOC)

  • SHA256: fd47d0155c7979a735fb0a377cb48198d714df851ef9d7a09f6a47349ef867da
  • MD5: 406408c4a6c3920362a7e0d4bbce0560

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: fd47d0155c7979a7"
        threat_level = "medium"
        first_seen = "2026-03-06"
    condition:
        hash.sha256(0, filesize) == "fd47d0155c7979a735fb0a377cb48198d714df851ef9d7a09f6a47349ef867da"
}

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 fd47d0155c7979a735fb0a377cb48198d714df851ef9d7a09f6a47349ef867da # MD5 406408c4a6c3920362a7e0d4bbce0560
TypeValueNote
sha256 fd47d0155c7979a735fb0a377cb48198d714df851ef9d7a09f6a47349ef867da Sample:GuLoader
md5 406408c4a6c3920362a7e0d4bbce0560 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