MALICIOUS
104
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a significant number of external URIs, many of which point to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users. The ML classifier strongly indicated maliciousness, and the heuristic firings support the presence of malicious JavaScript and a link farm.
Machine Learning
- Nyx PDF Classifier malicious score 0.9952
Heuristics 6
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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://ricoconsultingattorney.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/8441736766.pdf In PDF document text
- http://boracayg.com/FileData/ckfinder/files/20210708_AD3A2D3FCDDA5947.pdfIn PDF document text
- http://tanabuauto.com/js/upload/files/tozevuwa.pdfIn PDF document text
- http://www.commandinglife.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b060205af48---zovasug.pdfIn PDF document text
- https://gtsonline.nl/wp-content/plugins/super-forms/uploads/php/files/cre2glq546drgqm6k6qgmagjs1/dawefawovavunemito.pdfIn PDF document text
- https://sancarspune.com/wp-content/plugins/super-forms/uploads/php/files/9630b718cd1973df13f29d22d3778458/40599855831.pdfIn PDF document text
- http://beergolfers.com/blog/images/file/19763408900.pdfIn PDF document text
- http://airmon.hu/images/files/femibo.pdfIn PDF document text
- http://casier-a-bouteilles.fr/file/fapaferujumet.pdfIn PDF document text
- http://denis-lefebvre-services.com/fichiers/file/xumepiwuzof.pdfIn PDF document text
- http://eco-versute.com/app/webroot/ckfinder/userfiles/files/31713846569.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161128e9bc9129---gunawozowuzasig.pdfIn PDF document text
- https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16093b0ee95268---nuzaxikovetonosex.pdfIn PDF document text
- http://cesnek-vysocina.cz/UserFiles/File/walepezefopujikavejofa.pdfIn PDF document text
- http://alarmy-kamery24.pl/userfiles/file/89196151558.pdfIn PDF document text
- https://deniz-sogutma.org/img/userfiles/file/dunivekesazadonolu.pdfIn PDF document text
- https://mattweidnerlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a71fa2611ae---30799141143.pdfIn PDF document text
- http://kirks-pool.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bdaf70e8f35---vatetulusasipatoruvozige.pdfIn PDF document text
- https://tirthmobile.com/wp-content/plugins/super-forms/uploads/php/files/2g9f6eu75k8fn7ub0m2to5slgh/xiluwakuti.pdfIn PDF document text
- http://kezmosas.hu/files/file/wepefawobej.pdfIn PDF document text
- http://uyaviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16083df7bc50cd---67043149318.pdfIn PDF document text
- http://walkofagesvt.org/clients/0/0e/0e42319052772b195a43ba3ede0f03e0/File/18439758123.pdfIn PDF document text
- http://axiomestates.com/userfiles/file/sewelumiwavur.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=journal+reciprocal+teaching+pdfPDF 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_off0000ef4d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF4D | 10824 bytes |
SHA-256: fd7b0d96d9f991ac2755494e2b3534030748bfcfef4cfe40f8c0d185d4cad156 |
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font_01_sfnt_off000107f6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x107F6 | 18484 bytes |
SHA-256: 2db30004298824aaa363d432f06cd112ef09611cfaa4fc838938698bc85fa7f6 |
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font_02_sfnt_off000137b6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x137B6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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