MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains numerous external links, many of which point to compromised WordPress sites and disposable hosting, suggesting a link farm for SEO manipulation or to distribute malicious content. The ML classifier strongly indicated maliciousness. While no scripts were explicitly extracted, the structure and URL patterns are indicative of a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
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 https://wastran.ru/uplcv?utm_term=derivatives+of+polynomials+and+exponential+functions+worksheet PDF link annotation
- http://www.supercarrentalsofmiami.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c3abf6e29b---64922846739.pdfIn PDF document text
- http://www.assignproject.com/wp-content/plugins/formcraft/file-upload/server/content/files/160934b3bc637c---tinufevisovogujonulim.pdfIn PDF document text
- http://southportrubbish.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607cf6afbd88a---xakikajoboma.pdfIn PDF document text
- https://cedarcreeksauce.com/wp-content/plugins/super-forms/uploads/php/files/db90f4401d299f119cec0ba03531ab5d/13922511959.pdfIn PDF document text
- http://jinistudy.com/_UploadFile/Images/file/diwuxananafomagujuxif.pdfIn PDF document text
- http://zjhywt.com/images/upload/File/ronikajutesozusobumesebuz.pdfIn PDF document text
- http://amon-syotengai.com/userfiles/file/mixunijeza.pdfIn PDF document text
- http://lncxjzxxw.com/upload_fck/file/2021-7-23/20210723023626168297.pdfIn PDF document text
- http://www.companyforte.com/imagenes/editor/file/tabime.pdfIn PDF document text
- https://massagetheory.ca/wp-content/plugins/super-forms/uploads/php/files/acf24ca69d1c6f5f4318428b71adbf84/44037906755.pdfIn PDF document text
- http://aviteksural.ru/admin/ckfinder/userfiles/files/gixoxeje.pdfIn PDF document text
- https://www.skyline-recruiting.com/wp-content/plugins/super-forms/uploads/php/files/3d9771cbfff9c38fd185256effe4f514/58171713268.pdfIn PDF document text
- http://pinturasoltra.com/images/slider/files/40508826749.pdfIn PDF document text
- http://palami.by/images/file/xibafalazipevesugepuzas.pdfIn PDF document text
- http://cageart.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1608d5c4fb632f---48683081553.pdfIn PDF document text
- http://smart.sut.ac.th/tsme/src/lib/ckfinder/userfiles/files/punodorujumikulije.pdfIn PDF document text
- http://hillhouseclassof1961.com/clients/c/c9/c9b049383fb65e98d0a4dcab6c176392/File/lunuzanopokenijagol.pdfIn PDF document text
- http://sartoriaventurini.com/userfiles/files/41589033809.pdfIn PDF document text
- https://campermagazine.tv/public/file/xidinesakanavemeze.pdfIn PDF document text
- http://www.timtransportes.com/home/wp-content/plugins/formcraft/file-upload/server/content/files/160b928f87578e---64303311978.pdfIn PDF document text
- https://www.paseppe.gr/ckfinder/userfiles/files/21657153724.pdfIn PDF document text
- http://ypperfect.com/ckfinder/userfiles/files/jesezinuxajuwerozesukabad.pdfIn PDF document text
- 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_off0000bfb5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBFB5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d7cc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7CC | 11448 bytes |
SHA-256: 42aaaea22729851d25d900555c1d86c967745ba445c1529a6c8392745216ac28 |
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font_02_sfnt_off0000f2c1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2C1 | 17228 bytes |
SHA-256: c5ded381afdf33a1be324299863f434e6cff8affd6e56c79bb61697d81918ab2 |
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