GuLoader | Threat Level: medium | Type: Loader

Cryptographic Identifiers

SHA2569c43b920900fe218212dec879c49c6b31b17ad0cda091818acff94a062b75fb8
MD5a65a4249fef77e1c648070c5adaeae14
File Typeexe
Size576.7 KB
First Seen2026-05-21
File NameDocuments.exe
Tagsexe, GuLoader, signed

Malware Family: GuLoader

GuLoader, bulut üzerinden yük indirir.

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

Threat Indicators (IOC)

  • SHA256: 9c43b920900fe218212dec879c49c6b31b17ad0cda091818acff94a062b75fb8
  • MD5: a65a4249fef77e1c648070c5adaeae14

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: 9c43b920900fe218"
        threat_level = "medium"
        first_seen = "2026-05-21"
    condition:
        hash.sha256(0, filesize) == "9c43b920900fe218212dec879c49c6b31b17ad0cda091818acff94a062b75fb8"
}

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 9c43b920900fe218212dec879c49c6b31b17ad0cda091818acff94a062b75fb8 # MD5 a65a4249fef77e1c648070c5adaeae14
TypeValueNote
sha256 9c43b920900fe218212dec879c49c6b31b17ad0cda091818acff94a062b75fb8
md5 a65a4249fef77e1c648070c5adaeae14

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
guloaderloadermalwaremediumsha256analizzenginleştirilmiş