MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link farm with numerous URLs pointing to other PDFs hosted on compromised websites. This suggests a multi-stage attack where the initial PDF serves as a lure to redirect users to further malicious content. The ML classifier strongly indicated maliciousness, supporting this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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://nuyewrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/14ca25bf82c9d92ef72c3532822f0ce2/19113317620.pdf In PDF document text
- http://kimkhimientrung.com/uploads/image/files/64378581204.pdfIn PDF document text
- http://dbcasagayathottam.org/assets/uploads/cms_images/files/94434706722.pdfIn PDF document text
- http://mega.kz/media/upload/files/pujetiw.pdfIn PDF document text
- https://pinotcar.com/wp-content/plugins/super-forms/uploads/php/files/93bfbbf485092bfd2223ef19228a08ba/53201391391.pdfIn PDF document text
- https://turkuazhost.com/calisma2/files/uploads/58389129580.pdfIn PDF document text
- https://cashcruis.ru/wp-content/plugins/super-forms/uploads/php/files/6db67ee56261dd5e892b2a05500f52d3/paketo.pdfIn PDF document text
- http://ljhalls.com/wp-content/plugins/super-forms/uploads/php/files/c0dedaaffce72a86301079aa64d99a9b/jedajajegunarag.pdfIn PDF document text
- https://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/160702ff4d0178---98985144730.pdfIn PDF document text
- http://kristinanamaste.eu/files/zivakevepejiwipupaxub.pdfIn PDF document text
- https://j-kowalewski.pl/uploads/userfiles/files/waxukef.pdfIn PDF document text
- http://hondatayho.vn/images/ckeditor/files/18274622536.pdfIn PDF document text
- https://teplitsyoptom.ru/wp-content/plugins/super-forms/uploads/php/files/75549a3d8e3f2ed599be22da4eb0e73a/rurerig.pdfIn PDF document text
- http://autoshiftbid.com/fckeditor/userfiles/file/pelaxogubiw.pdfIn PDF document text
- http://delawaretravelmedicine.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085ea82ab1c5---tixemosawedofir.pdfIn PDF document text
- http://www.aragonemprendedor.com/userfiles/files/bibeviz.pdfIn PDF document text
- http://horizonpestservices.com/userfile/povadaxajevixegevire.pdfIn PDF document text
- https://www.amiunaorchestra.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16097cc940dcb2---39041682811.pdfIn PDF document text
- http://www.melodypods.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610627adb94d2---77983091867.pdfIn PDF document text
- https://aljazeerahdrilling.com/userfiles/files/96301078039.pdfIn PDF document text
- http://studiobonvino.com/userfiles/files/pakopumitopewofuv.pdfIn PDF document text
- http://on-call-anatomist.org/ckfinder/userfiles/files/wojodezesi.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=circle+theorems+notes+pdfPDF 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_off0000c33f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC33F | 17600 bytes |
SHA-256: c5c6d24f1b0f2833713f11b257916a5fcffadd3c4f996b69ece9cd27619b7095 |
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font_01_sfnt_off0000f06b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF06B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010882.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10882 | 10752 bytes |
SHA-256: efff6167e7b78bd653a56d87792d2cc8597d3a1a21078d8f704d5aa66ebcc12d |
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