MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a large number of external URIs, many of which point to compromised WordPress sites or disposable hosting. These links form a link farm designed to redirect users to malicious PDF files, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://sunnysolutions.it/uploads/assets/file/detatemijinifo.pdf
- http://ejmk.com/ej/upload/files/jidozebabexefu.pdf
- https://universitecentrale.net/uploads/FCK_files/file/1813980334.pdf
- https://traveletrust.com/basefile/traveletrustcom/files/23794687700.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a004ae55d96---guvetarezake.pdf
- https://blogsma.com/files/244726523.pdf
- http://www.uvhk.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611e72f8ebbb6---45885589970.pdf
- http://informerfitness.com/wp-content/plugins/super-forms/uploads/php/files/085681a03609a86d37545b6692af2b14/nuvomixafanozovijibowik.pdf
- https://www.siemers-deutschmann.de/wp-content/plugins/super-forms/uploads/php/files/iovlubcddra29m1d4rcripiqri/41822328437.pdf
- http://hooleihomes.com/cms_images/file/22087132599.pdf
- https://technok.cz/wp-content/plugins/super-forms/uploads/php/files/22802665bc6245776c87e358bed093a2/1619253683.pdf
- http://biolabsrl.org/userfiles/files/vobejijotakefijenimolej.pdf
- https://alamansyria.com/userfiles/file/fesezifamora.pdf
- https://growlocals.com/wp-content/plugins/super-forms/uploads/php/files/50e2b6747ce3e46546cebd3c575bf95d/xefajesadagalakokisosi.pdf
- http://moreit.ch/productinfo/file/21126869203.pdf
- https://www.coconutlodge.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c3498ea1428---62867617717.pdf
- http://pmdrecycling.com/wp-content/plugins/formcraft/file-upload/server/content/files/160940b3e3387c---98675434788.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a0a05d6e364---wizanepu.pdf
- http://na3.it/misc/file/malopuvatirejis.pdf
- http://dienlanhlongan.com/upload/files/93000823385.pdf
- https://www.xtremefitness.com.au/application/third_party/ckfinder/userfiles/files/panoferegixomarisujadesul.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=bedford+reader+pdf+download
- https://mediacentre.heathrow.com/js/ckfinder/userfiles/files/xaxavesi.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000bd31.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBD31 | 16792 bytes |
font_01_sfnt_off0000d543.bin160a4cf15ecbb33b615f7972d3069d3b652937c4903fe5af2200ac38a5f6d97e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD543 | 17816 bytes |
font_02_sfnt_off000103d4.bin6f96405d1ef857d5b5f3301f939cee95041410b1a9c7e81fda4b74a13ee7988d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x103D4 | 10272 bytes |
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