MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised WordPress sites or disposable hosting, indicative of a link farm for SEO poisoning or phishing. The ClamAV detection and ML classifier strongly suggest malicious intent, likely to redirect users to malicious content or phishing pages.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
Heuristics 7
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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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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://geo-equipe.it/userfiles/files/jepamusenivodupip.pdf
- https://www.hungarianassociation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613328fc5aed1---nepogifivivumodozabi.pdf
- http://getawaynewzealand.co.nz/wp-content/plugins/formcraft/file-upload/server/content/files/1613ed8fdaeaff---76886523362.pdf
- https://tutorsbureau.net/userfiles/file/xovamik.pdf
- http://lumieretvie.com/userfiles/file/repiwiwinomi.pdf
- http://www.cpnatacao.pt/backoffice/ckfinder/userfiles/files/webezifisojagubejowu.pdf
- http://rockefellersgold.hu/editor_up/dovanunitum.pdf
- http://cnsgafgl.netsociality.com/upload/files/43242301968.pdf
- https://afgventuregroup.com/cfiles/file/rixumozadamutunego.pdf
- http://intrinhgia.com/admin/webroot/upload/image/files/19066011581.pdf
- https://loskutova.site/wp-content/plugins/super-forms/uploads/php/files/d3a9fa2fb383afc493fbd40f62bdd723/91249092140.pdf
- http://chapaconoticias.com/assets/ckfinder/core/connector/php/uploads/files/74320798604.pdf
- http://leadershipcareer.kr/fckeditor/_upload/file/16560751862.pdf
- https://cyberbirddog.com/userfiles/files/93370645360.pdf
- http://khojedu.net/userfiles/file/lukorutilulatex.pdf
- http://biswasi.com/userfiles/files/sivudagotapifexuzatak.pdf
- https://www.barefoothoa.com/webroot/js/ckfinder/userfiles/files/54869354365.pdf
- http://associazionemillesogni.it/userfiles/files/rijasikowosafemodawifuzu.pdf
- http://jeansresource.com/js/ckfinder/userfiles/files/56572481361.pdf
- https://pinpointfeedtech.com/ckfinder/userfiles/files/59706821339.pdf
- http://leadingedgecorporate.com/user_images/file/20502183234.pdf
- http://weorderfood.com/uploads/files/ribegaviverodus.pdf
- https://senesi-sklad.cz/userfiles/file/28667958941.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=android+automatic+screen+rotation
- 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_off0000b751.binb8759432974d068269f528379656e58f1b52d36c142c4462db4607ccd223a197 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB751 | 15260 bytes |
font_01_sfnt_off0000de3c.bin32030f850af8a2cad8eb25468b4bb07108937470551d47bb8999492d3f7b668a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE3C | 10564 bytes |
font_02_sfnt_off0000f662.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF662 | 16792 bytes |
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