GuLoader | Threat Level: medium | Type: Loader

Cryptographic Identifiers

SHA256ee3582fbcab5e03d236d3910fa4608bec6df9402051173f8354a3df808ceec70
MD58a32e0f17ac86b2275025dfcae5f3bf3
File Typeexe
Size339.7 KB
First Seen2025-12-08
File Nameee3582fbcab5e03d236d3910fa4608bec6df9402051173f8354a3df808ceec70
Tagsexe, GuLoader

Malware Family: GuLoader

GuLoader, bulut downloader'dır.

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

Threat Indicators (IOC)

  • SHA256: ee3582fbcab5e03d236d3910fa4608bec6df9402051173f8354a3df808ceec70
  • MD5: 8a32e0f17ac86b2275025dfcae5f3bf3

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: ee3582fbcab5e03d"
        threat_level = "medium"
        first_seen = "2025-12-08"
    condition:
        hash.sha256(0, filesize) == "ee3582fbcab5e03d236d3910fa4608bec6df9402051173f8354a3df808ceec70"
}

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 ee3582fbcab5e03d236d3910fa4608bec6df9402051173f8354a3df808ceec70 # MD5 8a32e0f17ac86b2275025dfcae5f3bf3
TypeValueNote
sha256 ee3582fbcab5e03d236d3910fa4608bec6df9402051173f8354a3df808ceec70 Sample:GuLoader
md5 8a32e0f17ac86b2275025dfcae5f3bf3 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