MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and multiple URLs, some of which point to compromised WordPress upload storage and disposable hosting, indicating a link farm designed to distribute malicious files. The ClamAV detection and ML classifier strongly suggest malicious intent, likely for phishing or malware delivery via a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
Heuristics 7
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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 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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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://alley.52886.tw/uploads/files/45137394959.pdf In PDF document text
- https://vnycc.com/userfiles/file/fasatexipesapopizefalo.pdfIn PDF document text
- http://travellightnepal.com/userfiles/file/78326667489.pdfIn PDF document text
- http://www.sanjuktabanerjee.com/fckimages/file/pinon.pdfIn PDF document text
- http://soloparamideco.com/js/new/fckeditor/userfiles/file/65504948317.pdfIn PDF document text
- http://firmen-bekleidung.at/userfiles/file/baxokefibos.pdfIn PDF document text
- http://uniondeautoescuelas.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140e3d00ff47---6375952511.pdfIn PDF document text
- https://sharjahcements.com/images/bulk_images/files/gejodegiga.pdfIn PDF document text
- https://naucharts.com/ckfinder/userfiles/files/36359819396.pdfIn PDF document text
- https://5ky13lu3-1251.com/contents/files/83425842898.pdfIn PDF document text
- http://westfallassociates.com/documents/file/51023299310.pdfIn PDF document text
- http://avalon-essenzen.at/userfiles/file/68509909015.pdfIn PDF document text
- https://takarasushimn.com/userfiles/files/58507192839.pdfIn PDF document text
- https://comtraining.cl/userfiles/files/36751255164.pdfIn PDF document text
- http://studioiulianella.it/userfiles/files/bimerux.pdfIn PDF document text
- http://ferrogep99.hu/static/media/file/lusunujunifekezekabeje.pdfIn PDF document text
- https://www.pal-kont.hu/wp-content/plugins/super-forms/uploads/php/files/fff3449f3b098f6b5a9939a2783e71ee/96854310482.pdfIn PDF document text
- http://schokoladenfontaene.de/idata/46629942629.pdfIn PDF document text
- http://inlikeflintlogistics.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135a0033d1aa---94748644591.pdfIn PDF document text
- http://halvani.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613075654fb6d---3798547230.pdfIn PDF document text
- http://osingenieria.com/images/admin/file/22329985335.pdfIn PDF document text
- https://mps-india.com/userfiles/files/7303338275.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=chemistry+in+context+10th+edition+free+downloadPDF 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_off0000dfb0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDFB0 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f7c2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7C2 | 17856 bytes |
SHA-256: 995564a79937552bdedf27745daacfa31b7580d49107aace8d81ce7c189495fe |
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font_02_sfnt_off0001261f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1261F | 11248 bytes |
SHA-256: 070ac6ebfcfea6433573049f67c6bbb342b9766db0c6f9b86854ea66f1d0ba45 |
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