MALICIOUS
104
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains an embedded JavaScript stream and numerous external URIs, many of which point to compromised websites or disposable hosting, indicating a link farm for SEO manipulation or malicious redirection. The ML classifier strongly flagged this PDF as malicious. No specific family could be identified, but the techniques suggest a downloader or redirector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
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://beta-rc.com/upload/files/20805785402.pdf In PDF document text
- https://asiaviews.org/wp-content/plugins/super-forms/uploads/php/files/ke9nj6kcogv3u1ln57cmnhdo56/linukumapevoludojen.pdfIn PDF document text
- http://www.investing-in-women.com/wp-content/plugins/formcraft/file-upload/server/content/files/160794c4319ed9---lujoxudufexibunebajapeza.pdfIn PDF document text
- https://semsaesp.com/ckfinder/userfiles/files/76349354561.pdfIn PDF document text
- http://aarogyamedico.com/userfiles/file/98421787190.pdfIn PDF document text
- http://uceng.net/_UploadFile/Images/file/74043277270.pdfIn PDF document text
- http://jyjwqj.com/uploadfile/file///2021060809195754.pdfIn PDF document text
- http://raunlarose.us/wp-content/plugins/formcraft/file-upload/server/content/files/160803d65077cf---dutosowemokakajuraw.pdfIn PDF document text
- http://houselandia.ru/files/nelupip.pdfIn PDF document text
- https://creationstationdance.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607747e434bad---tonekajimijoninokisol.pdfIn PDF document text
- https://dezsredstvompx.ru/wp-content/plugins/super-forms/uploads/php/files/bf56f8ee2cb1e22d5afcb1c23f0cad09/32449133626.pdfIn PDF document text
- http://akicgiyim.com/userfiles/file/romezigijijakijix.pdfIn PDF document text
- http://mywayrtk.info/userfiles/file/dijivaxegada.pdfIn PDF document text
- http://medipharmacompany.com/userfiles/files/piwaleledodasije.pdfIn PDF document text
- http://wignaccent.com/FCKeditor_2.6.3/userimages/file/20210622054712.pdfIn PDF document text
- https://www.siemers-deutschmann.de/wp-content/plugins/super-forms/uploads/php/files/iovlubcddra29m1d4rcripiqri/41822328437.pdfIn PDF document text
- http://bjaimama.com/data/upload/2021/07/file/202107061150018390.pdfIn PDF document text
- http://turinhotelcompany.com/userfiles/files/83284632443.pdfIn PDF document text
- https://baxsporthorses.nl/userfiles/file/594354474.pdfIn PDF document text
- http://m-styleauto.com/js/upload/files/81488676610.pdfIn PDF document text
- http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607b918997f76---pimenarizudarudasipipat.pdfIn PDF document text
- https://hotelritariccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/160a73768ea0cf---jexiriwet.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/BvfzZFkJO3s/uplcv?utm_term=good+chest+exercises+with+dumbbellsPDF 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_off0000ec1c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC1C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0001042e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1042E | 16380 bytes |
SHA-256: 4e4c65d582ba359a053337a0aa8ccade60f75ca153742d481fcd24df33f66df3 |
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font_02_sfnt_off00012e8b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12E8B | 10836 bytes |
SHA-256: a71763f71f712750c84127d1faeceb43b4d8c633436d0cd3aca21291524a6783 |
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