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 external PDF files, many hosted on domains associated with compromised CMS uploads or disposable hosting. This suggests a tactic to manipulate search engine results or distribute further malicious content. The ML classifier strongly indicated maliciousness, and the structure aligns with SEO spam or content distribution campaigns.
Machine Learning
- Nyx PDF Classifier malicious score 0.9995
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://detector-billetes.com/Imagenes/file/111034140.pdf In PDF document text
- https://msr-hudsonproperties.com/wp-content/plugins/super-forms/uploads/php/files/dad13252a440f96d6a109529897015ed/mogezururuvejurulaja.pdfIn PDF document text
- http://accessiblevehicleservices.com/userfiles/file/83944852510.pdfIn PDF document text
- http://niestachow.pl/data/aktualnosci_imgs/file/36209352622.pdfIn PDF document text
- https://stakeoutllc.com/wp-content/plugins/super-forms/uploads/php/files/1bd0fed585773b30365aa27ab6d570d6/lusaliroxigoxipudedulejub.pdfIn PDF document text
- https://ratsimae.eemedia/contents/file/danes.pdfIn PDF document text
- https://sf-tfi-pgu.uz/wp-content/plugins/super-forms/uploads/php/files/2d42994d5bad4ccae50f33425f107730/sonurazo.pdfIn PDF document text
- https://2acontractor.it/images/file/28476993015.pdfIn PDF document text
- http://transportdiverse.com/uploads/files/70191372193.pdfIn PDF document text
- http://falerisztika.hu/tmp/80800921818.pdfIn PDF document text
- http://come2menorca.com/images/file/36361706767.pdfIn PDF document text
- https://comobrew.com/newsite/images/user_uploads/file/49659259075.pdfIn PDF document text
- http://www.netcorp.hu/data/editorfile/68034420706.pdfIn PDF document text
- http://geasit.it/userfiles/files/8826611561.pdfIn PDF document text
- http://elonsummerstorage.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac89a8337b9---gafizil.pdfIn PDF document text
- http://lor-rostov.su/userfiles/files/38353946026.pdfIn PDF document text
- http://fautographie.org/images/userfiles/files/36129146119.pdfIn PDF document text
- http://vin-baietii.ro/ckfinder/userfiles/files/kikeluluxatevutipisej.pdfIn PDF document text
- https://theemperorsoldclothes.co.uk/wp-content/plugins/super-forms/uploads/php/files/d093bot5ve8rmqb6ekhpb62rtf/petuz.pdfIn PDF document text
- http://ctkupavna.ru/upload/file/gitogutut.pdfIn PDF document text
- https://glass-haus.ru/wp-content/plugins/super-forms/uploads/php/files/d0d9927b40eea592eead309821d4bb4c/1628108116.pdfIn PDF document text
- https://wagaskar.com/media/59715572022.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=sigma+base+1200+wl+manualPDF 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_off0000c7d8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC7D8 | 22416 bytes |
SHA-256: 579200e7d09d8902ab1eac0653de5762d833fd2297215944ddc96bd20c5c286f |
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font_01_sfnt_off0000ff9b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF9B | 10828 bytes |
SHA-256: ea7b84c63382ffb2c2e7f018dc5357f812b890616106e3fa3aa44ee078f2b839 |
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font_02_sfnt_off000118b5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118B5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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