GuLoader | Threat Level: medium | Type: Loader

Cryptographic Identifiers

SHA2560ef58df8a376367a250f7317fa787bb9b189d7f8f9cbcbf292076f4240aced22
MD5b67833a72285c5f1232c47ae94ed6ca1
File Typeexe
Size918.9 KB
First Seen2026-05-20
File NameTransferencia_recibo-_18108714.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: 0ef58df8a376367a250f7317fa787bb9b189d7f8f9cbcbf292076f4240aced22
  • MD5: b67833a72285c5f1232c47ae94ed6ca1

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: 0ef58df8a376367a"
        threat_level = "medium"
        first_seen = "2026-05-20"
    condition:
        hash.sha256(0, filesize) == "0ef58df8a376367a250f7317fa787bb9b189d7f8f9cbcbf292076f4240aced22"
}

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 0ef58df8a376367a250f7317fa787bb9b189d7f8f9cbcbf292076f4240aced22 # MD5 b67833a72285c5f1232c47ae94ed6ca1
TypeValueNote
sha256 0ef58df8a376367a250f7317fa787bb9b189d7f8f9cbcbf292076f4240aced22 Sample:GuLoader
md5 b67833a72285c5f1232c47ae94ed6ca1 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