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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 55fb0cdc4e11ec1f5ad4a7ff916213cac4bee523649c45dd723d337decc37337. 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 3 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 55fb0cdc4e11ec1f5ad4a7ff916213cac4bee523649c45dd723d337decc37337
SHA3-384 hash: 9dacbc40c49430910f0c7061ca57babb90d6ae0f77b15e9084e38b54e88b850922a2e6c57ae0f4d4c0c07a6750287143
SHA1 hash: 35750ec6ed4b5f8b65fd5a61678ba67d7610f925
MD5 hash: 89a193e937deea15a6894daa9ca6ae0b
humanhash: spring-yankee-tennis-jig
File name:JUSTIFICANTEXDEXXTRANSFERENCIA.rar
Download: download sample
Signature GuLoader
Create hunting rule
File size:1'425'724 bytes
First seen:2026-05-20 17:41:42 UTC
Last seen:Never
File type: rar
MIME type:application/x-rar
ssdeep 24576:M0XdQbvVRd7NeZVCD4nFyeF2cwSk8zQ98heMEdg89Fukx13cs2estjnh:vcRd7NCg4nYcP6MEdg86i3cIsdh
TLSH T11D6533D65711AEB54E0FE6A2B0D27294D037C7A43D9B321CD2658B28F13E31D8E71B98
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 :
25
Origin country :
CH CH
File Archive Information

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

File name:JUSTIFICANTE DE TRANSFERENCIA.exe
File size:1'458'080 bytes
SHA256 hash: 0a2924015126e5d64bdb4eb48dba9b21684473f1c223a4b74b568a7f5d72bfc1
MD5 hash: 34deceaa77aae701d2d4de69cdf811d4
MIME type:application/x-dosexec
Signature GuLoader
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/1f891b3d-66d8-4b83-8601-4f03084637e2/
Detection(s):
SecuriteInfo.com.NSIS.MalwareX-gen.30973.15377.UNOFFICIAL
Create hunting rule

Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6a0e01a74159ce11f601e032
Tags:
injection obfusc virus
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
adaptive-context anti-debug evasive expired-cert installer installer installer-heuristic microsoft_visual_cc nsis reconnaissance signed
Link:
https://www.filescan.io/uploads/6a0df681efbd399b39c01b1b/reports/11a1522d-3ca1-43b5-bbe0-b6425ca8053d/overview
Verdict:
Suspicious
Labled as:
Mal/DrodRar
Link:
https://www.hybrid-analysis.com/sample/55fb0cdc4e11ec1f5ad4a7ff916213cac4bee523649c45dd723d337decc37337
Verdict:
Malicious
File Type:
rar
First seen:
2025-07-08T19:35:00Z UTC
Last seen:
2026-05-08T09:57:00Z UTC
Hits:
~1000
Link:
https://opentip.kaspersky.com/55fb0cdc4e11ec1f5ad4a7ff916213cac4bee523649c45dd723d337decc37337/results?tab=lookup
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/55fb0cdc4e11ec1f5ad4a7ff916213cac4bee523649c45dd723d337decc37337/
Threat name:
Win32.Trojan.GuLoader
Create hunting rule
Status:
Malicious
First seen:
2025-07-09 03:48:56 UTC
File Type:
Binary (Archive)
Extracted files:
22
AV detection:
24 of 38 (63.16%)
Threat level:
  5/5
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/55fb0cdc4e11ec1f5ad4a7ff916213cac4bee523649c45dd723d337decc37337

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:Detect_NSIS_Nullsoft_Installer
Create hunting rule
Author:Obscurity Labs LLC
Description:Detects NSIS installers by .ndata section + NSIS header string
Rule name:PE_Digital_Certificate
Create hunting rule
Author:albertzsigovits
Rule name:Sus_Obf_Enc_Spoof_Hide_PE
Create hunting rule
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 55fb0cdc4e11ec1f5ad4a7ff916213cac4bee523649c45dd723d337decc37337

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments