GuLoader | Threat Level: medium | Type: Loader

Cryptographic Identifiers

SHA2566721d6b0ed68abe2669a5e8cb5b5c2c56e6388db7c643619c14bd8436aa255e1
MD5d8e62254f40965d5b3098a09670bd335
File Typeexe
Size669.9 KB
First Seen2026-05-20
File NameJUSTIFICANTE_TRANSFERENCIA_09878783434.exe
Tagsexe, GuLoader

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: 6721d6b0ed68abe2669a5e8cb5b5c2c56e6388db7c643619c14bd8436aa255e1
  • MD5: d8e62254f40965d5b3098a09670bd335

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: 6721d6b0ed68abe2"
        threat_level = "medium"
        first_seen = "2026-05-20"
    condition:
        hash.sha256(0, filesize) == "6721d6b0ed68abe2669a5e8cb5b5c2c56e6388db7c643619c14bd8436aa255e1"
}

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 6721d6b0ed68abe2669a5e8cb5b5c2c56e6388db7c643619c14bd8436aa255e1 # MD5 d8e62254f40965d5b3098a09670bd335
TypeValueNote
sha256 6721d6b0ed68abe2669a5e8cb5b5c2c56e6388db7c643619c14bd8436aa255e1
md5 d8e62254f40965d5b3098a09670bd335

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