MALICIOUS
172
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript, which is a common technique for delivering malicious content. Heuristics indicate it functions as a link farm, directing users to compromised CMS upload storage and disposable hosting sites, likely to facilitate the download of a secondary payload. The presence of a download button lure further supports a phishing or social engineering attack vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
Heuristics 8
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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 http://relaxzenter.com/uploads/files/42555268260.pdf In PDF document text
- http://turningpointdigital.com/cote_dor_import/admin/ckfinder/userfiles/files/79299963576.pdfIn PDF document text
- http://xperion.hu/wp-content/plugins/super-forms/uploads/php/files/cb2a89d755f23218daa589d07000db7a/80953344110.pdfIn PDF document text
- http://www.yourhealthyourchoice.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613e22c58adeb---8326780511.pdfIn PDF document text
- http://indagosrl.it/userfiles/files/15697223394.pdfIn PDF document text
- http://tecs4.com/intranet/ckfinder/userfiles/files/degid.pdfIn PDF document text
- http://sziazsauto.com/uploads/files/67384264194.pdfIn PDF document text
- https://pasarantogel.com/contents/files/dananitijozasijuladeroz.pdfIn PDF document text
- http://metrocars.london/survey/userfiles/files/91939466333.pdfIn PDF document text
- http://optimumnieruchomosci.pl/uploads/userfiles/files/refezo.pdfIn PDF document text
- http://irodaszer.lukinserv.hu/file/fesagekamiginevuxaje.pdfIn PDF document text
- http://lamekatus.com/uploads/ckeditor/files/tidesubopifazorejitewu.pdfIn PDF document text
- http://garageanything.com/js/upload/files/80143529484.pdfIn PDF document text
- http://vladjurnalist.ru/archive/file/mijuxamugujajewul.pdfIn PDF document text
- http://www.advancedevents.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16134d38024e59---puwedikosifametekirij.pdfIn PDF document text
- http://namlinhchivietnam.net/userfiles/image/file/xudedoxododem.pdfIn PDF document text
- https://abhimaninteriors.com/ckfinder/userfiles/files/1640370837.pdfIn PDF document text
- http://www.viksexteriors.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140ca56962b4---64830238520.pdfIn PDF document text
- http://www.urbanwaterways.info/files/xugovipejamidirafexab.pdfIn PDF document text
- https://kentacademymiango.com/userfiles/file/36805780276.pdfIn PDF document text
- http://veoguidecostarica.com/ci/userfiles/files/94621935922.pdfIn PDF document text
- http://kennycojewelry.com/userfiles/files/202108/1630448926.pdfIn PDF document text
- http://pavcargo.ru/wp-content/plugins/super-forms/uploads/php/files/fd8a1ab8a1faa70fb72278cfe9ac5a4e/mawopojet.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=beat+fever+music+planetPDF 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_off0000cfb6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCFB6 | 10740 bytes |
SHA-256: e257a781bce23d5d6d18c0e83d784e92cf5314d7ec195f3ecb95ea224430c71d |
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font_01_sfnt_off0000e86c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE86C | 18352 bytes |
SHA-256: a87372056e04d8cdd407ddb258eef1b0de375a7652d6c24f279117ad46277062 |
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font_02_sfnt_off00011818.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11818 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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