MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs, many of which point to other PDF files hosted on various domains. Several heuristics indicate this is a link farm, with some links pointing to compromised CMS upload storage. The ML classifier strongly flagged this PDF as malicious, suggesting a non-benign purpose, likely related to distributing or hosting malicious content via these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://deltagroup.bg/uploads/file/62225514633.pdf In PDF document text
- http://stardentalcare.org/userfiles/file/dimepol.pdfIn PDF document text
- http://forglass.sk/userfiles/file/tudugivixujinez.pdfIn PDF document text
- https://siroyensao.com/upload/files/54146461406.pdfIn PDF document text
- http://whuntex.ru/userfiles/file/76797193191.pdfIn PDF document text
- https://clove7.com/userfiles/file/wimoziwog.pdfIn PDF document text
- https://kapokcmassage.com/uploads/files/202109061506517393.pdfIn PDF document text
- http://abwalabamaave.com/uploads/files/materoxegefebuxo.pdfIn PDF document text
- http://dhleisure.com/ckupload/files/59664140839.pdfIn PDF document text
- http://wisdomtours.net/upload/file/76616959551.pdfIn PDF document text
- https://regiefranchet.fr/userfiles/files/9138384618.pdfIn PDF document text
- http://umbabox.com/userfiles/file/91896578936.pdfIn PDF document text
- https://corpusbg.com/files/fck/file/tegozigafawozimubuvajez.pdfIn PDF document text
- http://alarmy-kamery24.pl/userfiles/file/60374983010.pdfIn PDF document text
- http://www.leesii.com/wp-content/plugins/formcraft/file-upload/server/content/files/161382a28694ee---83601397685.pdfIn PDF document text
- http://sva-jeanroze.com/xmedia/file/xudig.pdfIn PDF document text
- http://evola.it/userfiles/files/17996364810.pdfIn PDF document text
- https://dacola.com/upload/files/19263895493.pdfIn PDF document text
- https://giaynangchieucao.com/userfiles/file/79026633783.pdfIn PDF document text
- https://www.a2zmedical.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16131b393810c4---kapilazabixipotawile.pdfIn PDF document text
- http://richmediahouse.com/admin/uploads/file/gidipivudazokumajadi.pdfIn PDF document text
- http://compsult.net/userfiles/file/pedirefepitafazonu.pdfIn PDF document text
- http://uyaviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140b925a5a5e---21868176724.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=john+wick+chapter+2+720pPDF 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_off0000b191.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB191 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c9a8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC9A8 | 10720 bytes |
SHA-256: e325d9f7a215473d401beff2fa481d5f1e3f3879d85b279c0e6cb7127557852f |
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font_02_sfnt_off0000e26c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE26C | 18776 bytes |
SHA-256: 37e87b9c7260807c0d3515e50176fb845ad4e7606262e482c75529ca6d846426 |
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