MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a large number of embedded URLs, many of which point to compromised WordPress sites hosting other PDF files. This suggests the document is part of a link farm designed to manipulate search engine results or distribute malicious content. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 5
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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 http://parkwestresidences.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611ef487b2038---31661020085.pdf In PDF document text
- https://t2sc.me/userfiles/93085493705.pdfIn PDF document text
- http://aibasylhet.edu.bd/app/webroot/ckfinder/userfiles/files/giwegibewotedujop.pdfIn PDF document text
- https://fresh-cherries.com/ckfinder/userfiles/files/kogedaxinu.pdfIn PDF document text
- http://ikra-ekb.ru/files/fckeditor/file/joferarinodalo.pdfIn PDF document text
- http://lagerunda.it/public/upload/file/maletimotejod.pdfIn PDF document text
- https://comodee.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ff356ccb937---20098371087.pdfIn PDF document text
- https://asiarsolutions.com/userfiles/file/70899934866.pdfIn PDF document text
- https://nscs.org/wp-content/plugins/super-forms/uploads/php/files/5671b626ca517f77421b9b6088d289f8/19804744687.pdfIn PDF document text
- https://transcendenceit.com/wp-content/plugins/super-forms/uploads/php/files/78509c50ab7e9274abc6f5766554a9ff/dezaxewazivafezu.pdfIn PDF document text
- http://festivaldeliteraturadepereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a66e5a1ec73---77950862053.pdfIn PDF document text
- http://www.mtpartnersfl.com/wp-content/plugins/formcraft/file-upload/server/content/files/161152b2a39a2b---28379794771.pdfIn PDF document text
- https://gamedunyasi.com/calisma2/files/uploads/lamonef.pdfIn PDF document text
- http://jfhcoaching.nl/userfiles/files/ponajazar.pdfIn PDF document text
- https://calldidocta.com/wp-content/plugins/super-forms/uploads/php/files/f67f77f610688eb6d5702fb7e4587617/zuxezenoz.pdfIn PDF document text
- http://www.kliningstroy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1606d33b953f17---watanabosuzujimuson.pdfIn PDF document text
- http://www.qookspot.kitchen/wp-content/plugins/formcraft/file-upload/server/content/files/160ade17ae0554---kubajobapevupixilodin.pdfIn PDF document text
- https://atasuorganiktarim.com/upload/ckfinder/files/55470406140.pdfIn PDF document text
- https://www.revistadefiesta.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7793e042b8---87869169828.pdfIn PDF document text
- http://buckleyfamilyofdarling.net/clients/0/01/017bf228c8331327bdfb67b1798bff80/File/forufukokabelutew.pdfIn PDF document text
- http://philipp-haberland.de/images/upload/file/34426425295.pdfIn PDF document text
- http://texasstatealphaxialumnae.com/clients/f/fe/fe72632f573fdc77cca6b85875c63e8a/File/59842975629.pdfIn PDF document text
- https://gberwanda.com/gbe/useruploads/blogs/files/46484887480.pdfIn PDF document text
- http://exactblue.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609a94c78e1dc---sefebi.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=ptcb+study+guide+pdf+2017PDF 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_off0000e3ad.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE3AD | 10960 bytes |
SHA-256: 21a859a3285d3bfc5500c565c7b3c2f70fdc9a759104640c13fe8155e7ff41b9 |
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font_01_sfnt_off0000fd06.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD06 | 17576 bytes |
SHA-256: 30e70b0841cefeb29df26b48c29a716e5b96c0ccff31499a4566a89857a16476 |
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font_02_sfnt_off00012a48.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12A48 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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