MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links pointing to compromised WordPress sites, likely serving as a lure to download further malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. The presence of multiple external links suggests an attempt to redirect the user to a malicious payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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 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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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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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://stcatherine.ac.ug/wp-content/plugins/formcraft/file-upload/server/content/files/16094a8312640e---68758564193.pdf In PDF document text
- http://3dtechgroup.com/uploads/image/files/tebedetokixupuvaz.pdfIn PDF document text
- http://doublehappyvstheinfinitesadness.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608329a754721---34237736673.pdfIn PDF document text
- https://quizai.com/uploads/files/risugovelugevurogi.pdfIn PDF document text
- http://lavera.it/wp-content/plugins/formcraft/file-upload/server/content/files/160ad05669e743---29872000730.pdfIn PDF document text
- http://kurskodkb.ru/page_edit/_samples/userfiles/files/fuxopabagipenipuxeleg.pdfIn PDF document text
- http://ibshop.gr/uploads/_uploads/files/48095287982.pdfIn PDF document text
- https://eseninternational.com/uploads/files/zopiziripupejifatufazo.pdfIn PDF document text
- http://ypperfect.com/ckfinder/userfiles/files/ninozonigodiwo.pdfIn PDF document text
- http://sure2trips.com/bot/ckfinder/uf/files/ketoxurudep.pdfIn PDF document text
- https://digireg.ch/upload/40349313667.pdfIn PDF document text
- https://sumangold.net.vn/wp-content/plugins/super-forms/uploads/php/files/snj8rc46ipar5ag9ko8eepg1k4/97899842106.pdfIn PDF document text
- https://samarpanbharat.org/trila/userfiles/file/81380851018.pdfIn PDF document text
- https://adtw1.com/ckfinder/userfiles/files/ladekuforizidafewuz.pdfIn PDF document text
- https://cananalimdar.com/wp-content/plugins/super-forms/uploads/php/files/qk33sbameu4hc4sbso3q9vb68u/kapegibitutijuwa.pdfIn PDF document text
- http://strandedtattoo.net/file/fatoguwajojezukuf.pdfIn PDF document text
- https://discoverapartmentsforrent.com/wp-content/plugins/super-forms/uploads/php/files/2ee27623d783f80216bd9f75ea4a8df8/65228451546.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=manual+payouts+stripePDF 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_off0000dd1e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD1E | 17548 bytes |
SHA-256: 6155f9ba78ae4d9a682c263daf0716b7da82a76f800990bdd5fe295125ee2202 |
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font_01_sfnt_off00010b05.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B05 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001231c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1231C | 10452 bytes |
SHA-256: e4fd147ea5cfff2b0bc9c9941b6f94281b90838464063b0b94d711d79ca813e7 |
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