PDF malware analysis — malicious · b5c85a8f97fd3ce8

MALICIOUS

PDF

42.1 KB Created: 2021-02-26 00:53:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05

MD5: e4b98791424d921add276eefe4a5629c SHA-1: 5a20e64271a84ba1de78b08433646966dc3435b5 SHA-256: b5c85a8f97fd3ce83ec6cc8e53072e8c3e87ac1bb0509d7d30b203cab94b8553

124 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF file contains numerous embedded URLs, many of which point to disposable hosting and are part of a link farm, suggesting a phishing or malware distribution attempt. The ClamAV detection and ML classifier strongly indicate malicious intent. The document body, though heavily obfuscated, contains metadata related to wkhtmltopdf and a keyword search, further supporting the lure to a malicious URL.

Machine Learning

Nyx PDF Classifier malicious score 0.8150

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM

Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
External URI info PDF_URI

PDF contains an external URL action
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL https://baarspo.ru/award?keyword=wendy%2527s+spicy+chicken+nuggets+nutrition PDF link annotation
- https://cdn-cms.f-static.net/uploads/4387931/normal_60268d9dc911e.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4423454/normal_5fef65432349b.pdfIn PDF document text
- http://discovljzg.fun/170070430613oz8q.pdfIn PDF document text
- http://sportplays.ru/pokemon_crystal_dust_downloads2qgi.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4427781/normal_600905780deef.pdfIn PDF document text
- http://gedagefi.22web.org/minority_equity_investment_term_sheet.pdfIn PDF document text
- http://auto-agents.space/use_of_the_death_penalty_is_best_described_by_which_philosophy_of_punishmentglarc.pdfIn PDF document text
- https://parimuxuroz.weebly.com/uploads/1/3/2/6/132682994/364dc79d8d0a.pdfIn PDF document text
- https://rukuzidin.weebly.com/uploads/1/3/4/5/134517246/senaputitusomumuv.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4495684/normal_6017c1c3ec109.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4450351/normal_5fe843fdb9820.pdfIn PDF document text
- https://revugegan.weebly.com/uploads/1/3/4/6/134682990/e37614.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4462341/normal_5fd7877b4d3e0.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4446770/normal_5ff031255b7dc.pdfIn PDF document text
- http://xtrading.buzz/81047581340cahth.pdfIn PDF document text
- http://dunugamufaj.epizy.com/34010643464.pdfIn PDF document text
- http://xonizud.epizy.com/91521832391.pdfIn PDF document text
- http://jofelutapegor.epizy.com/l_anxit_de_performance_livre.pdfIn PDF document text
- http://juripijesem.rf.gd/carbon_now_date_format_laravel.pdfIn PDF document text
- http://mubadel.epizy.com/pajavof.pdfIn PDF document text

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