GuLoader | Threat Level: medium | Type: Loader

Cryptographic Identifiers

SHA256e10c0cb276ef50967311cce82419109b4cdf80733d36d4744b7c69eaad99cd65
MD593fc57beb0f509897200ba615598b135
File Typejs
Size145.8 KB
First Seen2026-06-10
File Namedocument_pdf.js
TagsGuLoader, js

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: e10c0cb276ef50967311cce82419109b4cdf80733d36d4744b7c69eaad99cd65
  • MD5: 93fc57beb0f509897200ba615598b135

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: e10c0cb276ef5096"
        threat_level = "medium"
        first_seen = "2026-06-10"
    condition:
        hash.sha256(0, filesize) == "e10c0cb276ef50967311cce82419109b4cdf80733d36d4744b7c69eaad99cd65"
}

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 e10c0cb276ef50967311cce82419109b4cdf80733d36d4744b7c69eaad99cd65 # MD5 93fc57beb0f509897200ba615598b135
TypeValueNote
sha256 e10c0cb276ef50967311cce82419109b4cdf80733d36d4744b7c69eaad99cd65
md5 93fc57beb0f509897200ba615598b135

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