MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to compromised WordPress sites and disposable hosting domains, indicating a link farm or redirection scheme. The ML classifier strongly flagged this PDF as malicious, and the heuristic firings support the presence of external URI links and a link farm structure. No scripts were extracted from this sample.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://www.pattyn360.com/upload/forum/files/jubujobebugedisupe.pdf In PDF document text
- http://nscenter.cn/upload/files/95917711724.pdfIn PDF document text
- http://ipvoicenj.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132b0cf16eec---wosofesuwelanowufubepaxo.pdfIn PDF document text
- http://nadiadsa.org/userfiles/file/zibezo.pdfIn PDF document text
- http://asesoriagarpe.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613783fa137b2---70587584985.pdfIn PDF document text
- https://kalashad.com/userfiles/file/436794449.pdfIn PDF document text
- https://tectrongim.com/uploads/file/31231674248.pdfIn PDF document text
- https://www.mtiwelding.co.uk/admin/ckfinder/userfiles/files/bewufemadobuwoxuxolun.pdfIn PDF document text
- http://tageedesign.com/ssmpt/documents/file/xisok.pdfIn PDF document text
- https://grupo-kayros.com/userfiles/file/44215595853.pdfIn PDF document text
- http://climtech.com/files/files/kokewirutakataniz.pdfIn PDF document text
- https://rubfila.in/files/file/7369649999.pdfIn PDF document text
- http://holzbau-napetschnig.at/39954378134.pdfIn PDF document text
- https://inprovitvenezuela.com/ckfinder/userfiles/files/64814842566.pdfIn PDF document text
- http://patanamachine.com/imgUpload/files/zedaverevu.pdfIn PDF document text
- http://mtcnx.com/upload/fckimagesfile/48270136210.pdfIn PDF document text
- https://spherule.org/wp-content/plugins/super-forms/uploads/php/files/culaiucvh5669mbv0lpad174e1/fuvuratelipoxuripota.pdfIn PDF document text
- http://www.valathors.com/ckfinder/userfiles/files/79009985792.pdfIn PDF document text
- http://pieseclimaauto.com/files/file/49117356814.pdfIn PDF document text
- http://www.goataxiservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/161350857e7e12---9991603963.pdfIn PDF document text
- http://trustarshida.co/cache/fck_files/file/fifikofakexopafepirebebon.pdfIn PDF document text
- https://copperscrap.wasteequipment.net/ckfinder/userfiles/files/ririr.pdfIn PDF document text
- http://grasslandtj.com/upload/files/39725795529.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=telling+the+time+worksheets+in+frenchPDF link annotation
- http://e1pl2.nazwa.pl/busy/fotki/file/37608567385.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_off0000b801.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB801 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d013.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD013 | 16280 bytes |
SHA-256: 9107619793b45d10ead49020b136ae53090910bfe4fec9b289b0b455d60fde4d |
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font_02_sfnt_off0000fa11.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA11 | 10764 bytes |
SHA-256: 206a9ae05217bfdc3d8a23511c573c8994fcfb69e70ba19c6f8c635f71f198a7 |
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