MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a link farm pointing to numerous compromised WordPress sites, indicating a likely attempt to manipulate search engine results or distribute malicious content. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious link farm. No scripts were extracted, limiting the analysis of direct execution capabilities.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://autosklo.sk/pictures/file/54997238030.pdf In PDF document text
- https://bbensonmft.com/wp-content/plugins/super-forms/uploads/php/files/0e799b44eae7d13a5debb94124e6a044/fapazokakavolofaxewubu.pdfIn PDF document text
- https://www.sir.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1606fa0b3d1449---wiluzanuwamosuka.pdfIn PDF document text
- https://hotelristorantenovecento.it/wp-content/plugins/super-forms/uploads/php/files/9ec8deea04d6f4f63341f149f8858bf4/tetonuzib.pdfIn PDF document text
- https://healthmatters.me/userfiles/file/bumoduvowabe.pdfIn PDF document text
- https://t4g.nasscomfoundation.org/wp-content/plugins/super-forms/uploads/php/files/f4et976ddjilqs6jpt7b7949l4/muvozorazadij.pdfIn PDF document text
- https://ateneoarbonaida.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085d20d77340---kolataniladozuladipujuk.pdfIn PDF document text
- https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/9be4bd10d53f1b5d8526da64036a5c51/35654696484.pdfIn PDF document text
- http://yasaitogo.com/uploads/files/mulodexorijema.pdfIn PDF document text
- http://raunlarose.us/wp-content/plugins/formcraft/file-upload/server/content/files/160804fc5dd309---7913810365.pdfIn PDF document text
- https://www.mii.net/wp-content/plugins/super-forms/uploads/php/files/7e8452c37b31c05c5e1880d03c573612/wanejerala.pdfIn PDF document text
- http://bazatalty.pl/wp-content/plugins/super-forms/uploads/php/files/c23aa2fcbcbc343b45796687d2517e80/tusuzobopelu.pdfIn PDF document text
- https://zweiund40.com/wp-content/plugins/super-forms/uploads/php/files/8tvkpd0rt4qq99jnauor4jja5f/lipifoxuxagajowek.pdfIn PDF document text
- http://julieesteban.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9da88dfbbd---mekowejule.pdfIn PDF document text
- https://trimix.bg/UserFiles/File/56077410484.pdfIn PDF document text
- http://haustechnik-hagenauer.at/39301224174.pdfIn PDF document text
- http://skogsformedling.se/bilder_umeny/File/sixesewi.pdfIn PDF document text
- http://www.evisiontiendaonline.com/ckfinder/userfiles/files/mesorubelalol.pdfIn PDF document text
- http://orgue-chantepie.info/FCKeditor/upload/file/24816401888.pdfIn PDF document text
- http://www.sevenchurchestour.net/seven/wp-content/plugins/formcraft/file-upload/server/content/files/16085d2af967ca---zalegelekaxazur.pdfIn PDF document text
- https://broadstripe.com/wp-content/plugins/super-forms/uploads/php/files/2a72e133b8cd1d32820910aab64a40fa/damaxira.pdfIn PDF document text
- https://shared401k.com/wp-content/plugins/super-forms/uploads/php/files/fbbba2bb106beca7e8e511c779a34f33/vutenukele.pdfIn PDF document text
- https://www.kalirich.com/wp-content/plugins/super-forms/uploads/php/files/4b01vl9a6pa502ugvud74ah7i6/73120480757.pdfIn PDF document text
- https://artsketch.ru/wp-content/plugins/super-forms/uploads/php/files/f3b3777db72a7c308db041e33596c813/2423952471.pdfIn PDF document text
- https://audreyheselmans.com/_files/file/mupufepineniribi.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=what+are+the+properties+of+elements+and+compoundsPDF 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_off0000eddd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDDD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000105f4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x105F4 | 10976 bytes |
SHA-256: eb4b1ea1c6b4e623cf55257af1b48749398b95b5589f973ae1da0ea4f36a19c5 |
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font_02_sfnt_off00011f44.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F44 | 19284 bytes |
SHA-256: 028abedee11114a2324c9a4d92244bafd061c56e71e4fc4838cd650f6b2b549d |
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