GuLoader | Threat Level: medium | Type: Loader

Cryptographic Identifiers

SHA256b6baf782b24cfe8e36dd991d971daef66c281d9c427bb99d37ae3a5014df89c4
MD5f11a33a1a5b0fc1e6214a0986d601e49
File Typeexe
Size719.6 KB
First Seen2026-05-20
File NameRequest_for_Quotation_MK_FMHS_RFQ250228.exe
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: b6baf782b24cfe8e36dd991d971daef66c281d9c427bb99d37ae3a5014df89c4
  • MD5: f11a33a1a5b0fc1e6214a0986d601e49

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: b6baf782b24cfe8e"
        threat_level = "medium"
        first_seen = "2026-05-20"
    condition:
        hash.sha256(0, filesize) == "b6baf782b24cfe8e36dd991d971daef66c281d9c427bb99d37ae3a5014df89c4"
}

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 b6baf782b24cfe8e36dd991d971daef66c281d9c427bb99d37ae3a5014df89c4 # MD5 f11a33a1a5b0fc1e6214a0986d601e49
TypeValueNote
sha256 b6baf782b24cfe8e36dd991d971daef66c281d9c427bb99d37ae3a5014df89c4 Sample:GuLoader
md5 f11a33a1a5b0fc1e6214a0986d601e49 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