GuLoader | Threat Level: medium | Type: Loader

Cryptographic Identifiers

SHA256c43d7eb7822607efb48938c4a1c4165ea73c83345e23135d879141c4f3469be2
MD5d351d1ce46366a021a97c26684a123a5
File Typeexe
Size429.0 KB
First Seen2025-10-10
File Namec43d7eb7822607efb48938c4a1c4165ea73c83345e23135d879141c4f3469be2
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: c43d7eb7822607efb48938c4a1c4165ea73c83345e23135d879141c4f3469be2
  • MD5: d351d1ce46366a021a97c26684a123a5

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: c43d7eb7822607ef"
        threat_level = "medium"
        first_seen = "2025-10-10"
    condition:
        hash.sha256(0, filesize) == "c43d7eb7822607efb48938c4a1c4165ea73c83345e23135d879141c4f3469be2"
}

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 c43d7eb7822607efb48938c4a1c4165ea73c83345e23135d879141c4f3469be2 # MD5 d351d1ce46366a021a97c26684a123a5
TypeValueNote
sha256 c43d7eb7822607efb48938c4a1c4165ea73c83345e23135d879141c4f3469be2 Sample:GuLoader
md5 d351d1ce46366a021a97c26684a123a5 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