MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a large number of external links, many pointing to compromised WordPress upload directories and disposable domains. This suggests the document is designed to act as a lure, directing users to download further malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9936
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://bandenplaats.nl/cmsimages/file/ruruboduf.pdf
- https://mmszke.hu/files/file/15993868709.pdf
- https://rescue.bg/wp-content/plugins/formcraft/file-upload/server/content/files/16071a91dc9202---12296530608.pdf
- http://cephedanismani.com/images/pages/file/ropebudozimuluson.pdf
- http://afghansolar.com/userfiles/file/podafinekegunesusove.pdf
- https://coolingrealestate.com/your-home-cleaner/FCKuploads/file/14270152883.pdf
- https://rfcorporation.net/wp-content/plugins/super-forms/uploads/php/files/71c7bc81091a74b16f75e721e3047176/46513789685.pdf
- http://www.combatsim.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160807d07c3e83---zinalopepor.pdf
- https://christianboudreau.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d4e0c99f9a---ximasesemogofuwapiw.pdf
- http://erfolgsapp.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607f1d23c891d---86974758534.pdf
- https://www.parkgest.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc037576ef---nakatafivimolutedobususo.pdf
- https://vieclamxaydung24h.com/upload/files/dofubaxidiruv.pdf
- https://bursaceviritercume.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a79e899dd57---denolerukoxibenumaseled.pdf
- http://bagiez.de/userfiles/file/vukiwoxelixujibukeseza.pdf
- https://termocasasrl.com/file/80966157575.pdf
- http://www.ncstarim.com.tr/wp-content/plugins/super-forms/uploads/php/files/3obqb6d2tekb8ovimjiqo1o2b0/80063346201.pdf
- https://ferado.vn/userfiles/file/92607909267.pdf
- http://www.altrus.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160788704b137f---54815294954.pdf
- http://garage-fuji.jp/js/upload/files/55591164061.pdf
- http://ingenermarket.ru/userfiles/zaxupavafonukuziv.pdf
- https://bustotoronto.com/userfiles/file/rewuzamapit.pdf
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c1941630191---17495236137.pdf
- https://ncfouting.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ee0a1dbf55---89940334578.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=rise+of+the+silver+surfer
- 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_off00011c28.bin057dafe0ddc4ec526aa2f3ab5e38146417682b7c6801554489af8680d7d7d3e7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C28 | 19136 bytes |
font_01_sfnt_off00014d45.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14D45 | 16792 bytes |
font_02_sfnt_off0001655c.bin0c85d2c07224592402f6d65a84eaad08ab1cd394f1740ffa7fdf6421f93dc37c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1655C | 10256 bytes |
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