GuLoader | Threat Level: medium | Type: Loader

Cryptographic Identifiers

SHA2566c911c6dc571f10ae519bcded475f8b1d6cf24053a06e97a9002e137420b9f6a
MD5783c7aac7a8858536adcf2f0e318f3e2
File Typeexe
Size1052.1 KB
First Seen2025-11-06
File Name6c911c6dc571f10ae519bcded475f8b1d6cf24053a06e97a9002e137420b9f6a
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: 6c911c6dc571f10ae519bcded475f8b1d6cf24053a06e97a9002e137420b9f6a
  • MD5: 783c7aac7a8858536adcf2f0e318f3e2

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: 6c911c6dc571f10a"
        threat_level = "medium"
        first_seen = "2025-11-06"
    condition:
        hash.sha256(0, filesize) == "6c911c6dc571f10ae519bcded475f8b1d6cf24053a06e97a9002e137420b9f6a"
}

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 6c911c6dc571f10ae519bcded475f8b1d6cf24053a06e97a9002e137420b9f6a # MD5 783c7aac7a8858536adcf2f0e318f3e2
TypeValueNote
sha256 6c911c6dc571f10ae519bcded475f8b1d6cf24053a06e97a9002e137420b9f6a Sample:GuLoader
md5 783c7aac7a8858536adcf2f0e318f3e2 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