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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 6cf8488cea5441bbea97788860864fd4e25dd4826ed18564c2ea66207fe20cf1. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry



GuLoader


Vendor detections: 8


Intelligence 8 IOCs YARA 1 File information Comments

SHA256 hash: 6cf8488cea5441bbea97788860864fd4e25dd4826ed18564c2ea66207fe20cf1
SHA3-384 hash: 31033cdca146ab94343bbe6d8133af24f3e2b500e0e4427a39c6d7127626a4929474daaadd5ebe66cab29ca5e96be6e5
SHA1 hash: e3779ad4aad71f0d1addd4133293e5b364463b91
MD5 hash: 44543ceb29f2790c5073f8fb27b83477
humanhash: berlin-virginia-quiet-autumn
File name:Justificante_0556ab404ffe63489e00a49987093578.rar
Download: download sample
Signature GuLoader
File size:612'064 bytes
First seen:2026-05-20 17:48:00 UTC
Last seen:Never
File type: rar
MIME type:application/x-rar
ssdeep 12288:tZ/068+QzBvvEyfcK/tmReydbW3ZGKeoDjOOXoUtElgmiOd2rf:z0vbXfcQmReydbWkKv/OqlCzdw
TLSH T12CD423EAAA0F9395821FA45E63958614BEC821AD103B736ACD073335F9EC514FE98734
TrID 61.5% (.RAR) RAR compressed archive (v5.0) (8000/1)
38.4% (.RAR) RAR compressed archive (gen) (5000/1)
Magika rar
Reporter TomU
Tags:GuLoader rar

Intelligence


File Origin
# of uploads :
1
# of downloads :
17
Origin country :
CH CH
File Archive Information

This file archive contains 1 file(s), sorted by their relevance:

File name:Justificante 0556ab404ffe63489e00a49987093578.exe
File size:639'308 bytes
SHA256 hash: 1d5034d169fb180073177fe671f18115b2ca47742a094231c1eb416ffba2a06d
MD5 hash: 6570f5a2315ed744c1136a67f824b37e
MIME type:application/x-dosexec
Signature GuLoader
Vendor Threat Intelligence
Verdict:
Malicious
Score:
99.1%
Tags:
injection uloader virus nsis
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
adaptive-context anti-debug evasive installer installer installer-heuristic microsoft_visual_cc nsis packed reconnaissance smb
Verdict:
Malicious
File Type:
rar
First seen:
2025-03-05T09:09:00Z UTC
Last seen:
2026-05-21T07:30:00Z UTC
Hits:
~1000
Gathering data
Threat name:
Win32.Trojan.GuLoader
Status:
Malicious
First seen:
2025-03-05 14:01:37 UTC
File Type:
Binary (Archive)
Extracted files:
17
AV detection:
25 of 37 (67.57%)
Threat level:
  5/5
Please note that we are no longer able to provide a coverage score for Virus Total.

YARA Signatures


MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Author:XiAnzheng
Description:Check for Overlay, Obfuscating, Encrypting, Spoofing, Hiding, or Entropy Technique(can create FP)

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Malspam

GuLoader

rar 6cf8488cea5441bbea97788860864fd4e25dd4826ed18564c2ea66207fe20cf1

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments