MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF contains embedded JavaScript, a common technique for executing malicious code or redirecting users. The numerous external URIs, many pointing to compromised WordPress upload directories, suggest a link farm designed to obscure the ultimate destination, likely a phishing page or malware download server. The ClamAV detection and ML classifier strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9984
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 http://vilaportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ecc8f0e40f2---45030305116.pdf
- https://niboparis.com/upload/fckeditor/files/mejuvexutofog.pdf
- http://netshopnepal.com/userfiles/file/58825706468.pdf
- https://walkandsmile.com/userfiles/file/57930804985.pdf
- http://www.mywil.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1609f25d186481---11936615405.pdf
- http://kirilmazbardak.com/userfiles/file/nemeruguvinevif.pdf
- http://zaun-produzent.de/userfiles/file/89317796960.pdf
- https://adiwirawanbali.com/wp-content/plugins/super-forms/uploads/php/files/be92c66350293a7800843c6224f20264/pugimexefuvilopet.pdf
- http://counterreaction.net/wp-content/plugins/formcraft/file-upload/server/content/files/160c5c10c72d40---11075518197.pdf
- https://sammycar.ch/sammy/sites/default/sammyfiles/newsletterfile/lolixikudejexilimomipugi.pdf
- http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/1611fd0c1a361c---lagurutojukatesevo.pdf
- http://tauben-buchmeier.de/kleinberliner-schuetzen/userfiles/files/25339919068.pdf
- http://m-styleauto.com/js/upload/files/zubuf.pdf
- http://transportdiverse.com/uploads/files/kigej.pdf
- http://www.primalegal.eu/wp-content/plugins/super-forms/uploads/php/files/b1binfjqvm3fr5e828f1irb2k7/zobureg.pdf
- http://adhdadvisory.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607498e8d6562---rotiboxufoxusugamexidodar.pdf
- https://ludifrance.fr/userfiles/file/86826572540.pdf
- http://aleeblog.com/wp-content/plugins/super-forms/uploads/php/files/6orgga87t0aqscs158tg45mci6/97143761535.pdf
- http://madiran-cruduparadis.fr/ckfinder/userfiles/files/19378786013.pdf
- https://ltssinternational.com/res/wysiwyg/file/molixodaxabatuzox.pdf
- https://larustt.com/upload/ckfinder/files/begiguwoludev.pdf
- https://vydavatelstvoklett.sk/userfiles/file/20239910517.pdf
- http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c6f34b778f6---rawenimepukogiw.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=asteroid+passing+earth+tonight
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e8c0.binb53530b63e4f50275aca21cac0fe775ba70f89009f62bca23288e3b8a0f1305e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE8C0 | 18576 bytes |
font_01_sfnt_off000119da.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x119DA | 16792 bytes |
font_02_sfnt_off000131f1.binb468471b302475ea424dee458f39ab010f7853b34a66393447ca989410b680ff |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x131F1 | 10604 bytes |
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