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 disposable hosting or compromised CMS upload directories, indicating a link farm strategy. The ML classifier strongly flagged this PDF as malicious. The presence of multiple links, including one to a compromised WordPress upload, suggests an attempt to redirect users to potentially harmful content or phishing sites.
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://odnoklassniki-files.ru/images/uploads/files/15895897460.pdf In PDF document text
- http://southportrubbish.com/wp-content/plugins/formcraft/file-upload/server/content/files/161469f9e2e828---kasepupusapuvodotebaje.pdfIn PDF document text
- http://www.alliance-bio.com/user_data/editor/ckfinder/core/connector/php/upload/files/veluperazatuxel.pdfIn PDF document text
- https://linker.tw/files/liwawilutagevi.pdfIn PDF document text
- https://urbanlivin.lu/userfiles/files/mefewejubone.pdfIn PDF document text
- http://terredellamagnagrecia.com/userfiles/files/85675892961.pdfIn PDF document text
- http://turinimoti.com/assets/userfiles/file/4835783214.pdfIn PDF document text
- http://saharun.org/uploads/ckfinder/userfiles/files/jisekazesexebozo.pdfIn PDF document text
- https://baongochoa.com/upload/file/palizabodu.pdfIn PDF document text
- http://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141c7184bdca---225286587.pdfIn PDF document text
- http://mazurubezpieczenia.pl/zdjecia/fck/file/12619590594.pdfIn PDF document text
- https://www.agcontraincendios.es/ckfinder/userfiles/files/ranotafusigadut.pdfIn PDF document text
- https://www.swx.global/wp-content/plugins/super-forms/uploads/php/files/55c2c413a5aa2ba77580367a993a7749/46912000877.pdfIn PDF document text
- http://baliretreatcenter.com/olabali_ci/media/images/newsfiles/92039395004.pdfIn PDF document text
- http://becucci.it/userfiles/files/2540402269.pdfIn PDF document text
- http://www.thelawchamber.com/wp-content/plugins/formcraft/file-upload/server/content/files/16144e3e20c0de---38075023795.pdfIn PDF document text
- https://lesartsdansmonjardin.com/userfiles/file/20210905034331.pdfIn PDF document text
- https://xn--bren-mgenwil-gcbf.ch/sites/default/files/fck-uploads/file/64738756328.pdfIn PDF document text
- http://www.investinwielkopolska.pl/application/lib/ckfinder/userfiles/files/sugopodujotudepuzozozu.pdfIn PDF document text
- http://romento.com/uploaded_files/userfiles/files/katijidoz.pdfIn PDF document text
- https://blugarden.eu/file/86830985150.pdfIn PDF document text
- https://netron.pt/app/webroot/media/files/56589368862.pdfIn PDF document text
- https://femagnet.com/upload/edu/article/file/9512366336.pdfIn PDF document text
- https://halobysciton.com/wp-content/plugins/formcraft/file-upload/server/content/files/161448ec9204d4---44857383374.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=sms+receive+broadcast+androidPDF 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_off0000da7d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA7D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f294.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF294 | 10768 bytes |
SHA-256: 8fa1cca77e3174678df402d971882651eb977c860504279aab5dec5d61629a9d |
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font_02_sfnt_off00010b59.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B59 | 16824 bytes |
SHA-256: f1a259a584a4abc30b549b7177a91ebf0ea5e0230a58943480371de46b6da3bd |
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