GuLoader | Threat Level: medium | Type: Loader

Cryptographic Identifiers

SHA256e98ec2e2ecb0b4c0c6b0d3655e32d6670cf9410c2f9f4826e94a1327c6c2cf8f
MD52a43807df407fdf370c866bb642ed088
File Typeiso
Size1152.0 KB
First Seen2026-05-20
File NameFactura_Honorarios.iso
TagsGuLoader, iso

Malware Family: GuLoader

GuLoader, bulut downloader'dır.

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

Threat Indicators (IOC)

  • SHA256: e98ec2e2ecb0b4c0c6b0d3655e32d6670cf9410c2f9f4826e94a1327c6c2cf8f
  • MD5: 2a43807df407fdf370c866bb642ed088

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: e98ec2e2ecb0b4c0"
        threat_level = "medium"
        first_seen = "2026-05-20"
    condition:
        hash.sha256(0, filesize) == "e98ec2e2ecb0b4c0c6b0d3655e32d6670cf9410c2f9f4826e94a1327c6c2cf8f"
}

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 e98ec2e2ecb0b4c0c6b0d3655e32d6670cf9410c2f9f4826e94a1327c6c2cf8f # MD5 2a43807df407fdf370c866bb642ed088
TypeValueNote
sha256 e98ec2e2ecb0b4c0c6b0d3655e32d6670cf9410c2f9f4826e94a1327c6c2cf8f Sample:GuLoader
md5 2a43807df407fdf370c866bb642ed088 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