GuLoader | Threat Level: medium | Type: Loader

Cryptographic Identifiers

SHA2567152fc2a8c08211d57c454dac030af4acf0222e8564463cb60b036d0cbd424c2
MD5dba2d029dd1f2e9969036411c5e136c8
File Typeexe
Size445.4 KB
First Seen2025-12-02
File NameJUSTIFICANTE DE TRANSFERENCIA.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: 7152fc2a8c08211d57c454dac030af4acf0222e8564463cb60b036d0cbd424c2
  • MD5: dba2d029dd1f2e9969036411c5e136c8

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: 7152fc2a8c08211d"
        threat_level = "medium"
        first_seen = "2025-12-02"
    condition:
        hash.sha256(0, filesize) == "7152fc2a8c08211d57c454dac030af4acf0222e8564463cb60b036d0cbd424c2"
}

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 7152fc2a8c08211d57c454dac030af4acf0222e8564463cb60b036d0cbd424c2 # MD5 dba2d029dd1f2e9969036411c5e136c8
TypeValueNote
sha256 7152fc2a8c08211d57c454dac030af4acf0222e8564463cb60b036d0cbd424c2 Sample:GuLoader
md5 dba2d029dd1f2e9969036411c5e136c8 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