MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links to external websites, with several heuristics indicating a link farm on disposable hosting and algorithmically generated URLs. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or to serve a second-stage payload. No scripts were extracted, but the PDF structure itself facilitates redirection to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9837
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall 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.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne 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://upbilbao.com/ckfinder/userfiles/files/kepimejajek.pdf In PDF document text
- http://home-plast.ru/foto/files/konivawonegozuvedamadofot.pdfIn PDF document text
- https://devcons.org/uploads/userfiles/files/narunegij.pdfIn PDF document text
- https://superiorservicesandsolutionsfl.com/nbloom/fckuploads/file/29912297903.pdfIn PDF document text
- https://sgcaregiver.org/contents/files/fepefinadedukoj.pdfIn PDF document text
- https://xn--80aesyq.xn--p1ai/files/file/zuxobowikipoxo.pdfIn PDF document text
- https://navoloki.mebel18.com/uploads/files/25025661463.pdfIn PDF document text
- https://readxyz.org/wp-content/plugins/super-forms/uploads/php/files/925ccf6449b28806feb447d70589ce9c/fobazasudaje.pdfIn PDF document text
- http://testplanet.nl/uploads/files/bizemabadarubimu.pdfIn PDF document text
- http://cerescommoditiesltd.com/Images_upload/files/29706428363.pdfIn PDF document text
- https://atpl.aero/ckfinder/userfiles/files/xiremefulogakajapolu.pdfIn PDF document text
- http://cnpair.com/userfiles/file/makuruf.pdfIn PDF document text
- http://www.oiseaubleu-promo.fr/userfiles/file/nazejidixezo.pdfIn PDF document text
- https://biomisszio.hu/tmp/sakinikexemonuroli.pdfIn PDF document text
- http://zetrade.cz/userfiles/file/pozosasapekefoxe.pdfIn PDF document text
- http://www.morrisjones.co.uk/EditorImages/file/faxigupogawo.pdfIn PDF document text
- https://bozoklar.org/ckfinder/userfiles/files/febosupavibototekokizev.pdfIn PDF document text
- https://dcimx.com/files/37764189154.pdfIn PDF document text
- http://traktor-tv.de/sites/default/files/file/mezoxige.pdfIn PDF document text
- https://telliogluhukuk.com/userfiles/file/gusugarofukazobedodak.pdfIn PDF document text
- http://merrygoldholidays.com/ckfinder/userfiles/files/zumiratemegesekerakureneg.pdfIn PDF document text
- https://shellserva.nl/docs/Image/file/71109668002.pdfIn PDF document text
- https://clubslotalmatriche.com/calcas/file/lelagozitu.pdfIn PDF document text
- http://digitalqwerty.com/ckfinder/userfiles/files/38050022443.pdfIn PDF document text
- http://unicorn-furnitures.com/d/files/xekejexurofakuto.pdfIn PDF document text
- http://mrspk.com/ckfinder/userfiles/files/dirimin.pdfIn PDF document text
- http://okmarin.ru/userfiles/file/potiwibedevumarizif.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=hsmtmts+episode+1+watch+onlinePDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b200.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB200 | 15384 bytes |
SHA-256: b22d12137a488b7f088e37fb54e8f86e3e21085a1f905f10c6bd581f9d571904 |
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font_01_sfnt_off0000d77e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD77E | 10808 bytes |
SHA-256: b4c0b07a98d6e71c801e0bc6481fc991dfa1095ce7517bf33784d6954ff8a745 |
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font_02_sfnt_off0000f048.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF048 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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