GuLoader | Threat Level: medium | Type: Loader

Cryptographic Identifiers

SHA25630029f21161015e2d21d53f3c62f19c46a8abd24fd72304ad97e50ce54d95efe
MD5a79e4a1bf2a30a376d4402a2ace42b03
File Typeexe
Size667.5 KB
First Seen2025-11-17
File NameOpinionsdannere.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: 30029f21161015e2d21d53f3c62f19c46a8abd24fd72304ad97e50ce54d95efe
  • MD5: a79e4a1bf2a30a376d4402a2ace42b03

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: 30029f21161015e2"
        threat_level = "medium"
        first_seen = "2025-11-17"
    condition:
        hash.sha256(0, filesize) == "30029f21161015e2d21d53f3c62f19c46a8abd24fd72304ad97e50ce54d95efe"
}

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 30029f21161015e2d21d53f3c62f19c46a8abd24fd72304ad97e50ce54d95efe # MD5 a79e4a1bf2a30a376d4402a2ace42b03
TypeValueNote
sha256 30029f21161015e2d21d53f3c62f19c46a8abd24fd72304ad97e50ce54d95efe Sample:GuLoader
md5 a79e4a1bf2a30a376d4402a2ace42b03 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