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MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 4073ae2a81a3c772a2ce2c6f671c8ffc360226dfe44dc5546980b182a146caef. 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: 11


Intelligence 11 IOCs YARA 6 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 4073ae2a81a3c772a2ce2c6f671c8ffc360226dfe44dc5546980b182a146caef
SHA3-384 hash: b42668ce9ab14ec54525c1a33e7b22b9f197823735233991e958ec7848ce06a3bd5ab0a56fa4953e98aef225c7dc2bc7
SHA1 hash: 2599b57d44186b4c6c92567e57be58b597490c64
MD5 hash: 67a6f1ad85bad781336e52b1e35f2af9
humanhash: cardinal-coffee-william-blue
File name:justificanteXpago.zip
Download: download sample
Signature GuLoader
Create hunting rule
File size:634'046 bytes
First seen:2026-05-20 17:35:26 UTC
Last seen:Never
File type: zip
MIME type:application/zip
ssdeep 12288:1YMMrmF2+MGdJByNs2YgWxri8AbK8abnlYsquLYzIwEtlOfbp9aKQp3jNf:OMMi8cJ4Ns2Ygori8t8aLlHquLJNtlOO
TLSH T1FAD42359DAFACAAB0A951ED694CE33C75D08CBE017D44689C372CD49BCAA5F2D32244C
Magika zip
Reporter TomU
Tags:GuLoader zip

Intelligence

File Origin
# of uploads :
1
# of downloads :
23
Origin country :
CH CH
File Archive Information

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

File name:Teariest.exe
File size:792'792 bytes
SHA256 hash: 701d6201778829a7149cd5eff49fb69471b5597fb39885c7460828415437a0e0
MD5 hash: b7901fba0abd559e0ff4b069f045c1a6
MIME type:application/x-dosexec
Signature GuLoader
Vendor Threat Intelligence
Details
Link:
https://research.acce.ciphertechsolutions.com/results/982876b9-8541-46f0-8aed-e396bdefd33e/
Verdict:
Malicious
Score:
99.1%
Link:
https://cyber-fortress.com/docs/result/index.php?id=6a0dfe604f2b29ce0401f97d
Tags:
injection obfusc virus
Result
Verdict:
Malicious
File Type:
PE File
Link:
https://app.docguard.net/4073ae2a81a3c772a2ce2c6f671c8ffc360226dfe44dc5546980b182a146caef/results/dashboard
Verdict:
Likely Malicious
Threat level:
  7.5/10
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/6a0df44f875badc3b38eb61c/reports/a70f8995-e6d1-4a25-bb99-55da53df1bfb/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/4073ae2a81a3c772a2ce2c6f671c8ffc360226dfe44dc5546980b182a146caef
Verdict:
Malicious
File Type:
zip
Link:
https://opentip.kaspersky.com/4073ae2a81a3c772a2ce2c6f671c8ffc360226dfe44dc5546980b182a146caef/results?tab=lookup
Score:
97%
Verdict:
Malware
File Type:
ARCHIVE
Link:
https://malprob.io/report/4073ae2a81a3c772a2ce2c6f671c8ffc360226dfe44dc5546980b182a146caef
Gathering data
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/4073ae2a81a3c772a2ce2c6f671c8ffc360226dfe44dc5546980b182a146caef/
Verdict:
Malicious
Threat:
Family.GULOADER
Link:
https://tip.neiki.dev/file/4073ae2a81a3c772a2ce2c6f671c8ffc360226dfe44dc5546980b182a146caef
Threat name:
Win32.Trojan.GuLoader
Create hunting rule
Status:
Malicious
First seen:
2025-04-09 19:36:53 UTC
File Type:
Binary (Archive)
Extracted files:
18
AV detection:
29 of 38 (76.32%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=ibz24kubupdxfiwofrxwohep7q3aejw74rg4kvdjqcyyfikgzlxq._file
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/4073ae2a81a3c772a2ce2c6f671c8ffc360226dfe44dc5546980b182a146caef

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:VECT_Ransomware
Create hunting rule
Author:Mustafa Bakhit
Description:Detects activity associated with VECT ransomware. This includes registry modifications and deletions, execution of system and defense-evasion commands, suspicious API usage, mutex creation, file and memory manipulation, ransomware note generation, anti-debugging and anti-analysis techniques, and embedded cryptographic constants (SHA256) characteristic of this malware family. Designed for threat intelligence and malware detection environments.

File information

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

Malspam

GuLoader

zip 4073ae2a81a3c772a2ce2c6f671c8ffc360226dfe44dc5546980b182a146caef

(this sample)

  
Delivery method
Distributed via e-mail attachment

Comments