MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains numerous embedded URLs that point to various domains, many of which appear to be compromised WordPress sites. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates that the PDF is a link farm on disposable hosting, suggesting an attempt to direct users to potentially malicious content. The ML classifier also strongly flagged this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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://synerhu.ru/uplcv?utm_term=statistics+measures+of+central+tendency+worksheet PDF link annotation
- https://hondamienbac.vn/userfiles/file/57440299708.pdfIn PDF document text
- http://aow.infogestnet.it/ckfinder/userfiles/files/zimonawozupapel.pdfIn PDF document text
- https://siphouse96.com/wp-content/plugins/super-forms/uploads/php/files/8c9e0d78322e9e8e172317c606a45e46/27489101072.pdfIn PDF document text
- https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/0f96168ce75c233d92220cc881d0d0ae/kobenojugiketopifuxi.pdfIn PDF document text
- http://bezpiecznamlodosc.org/files/file/6605354063.pdfIn PDF document text
- https://lcd96.ru/wp-content/plugins/super-forms/uploads/php/files/992fa2247a2db23652efcd1a1e511164/toluw.pdfIn PDF document text
- https://forex-robo.org/wp-content/plugins/super-forms/uploads/php/files/4edaca14e72244604b5d6a43b8a35bf7/buvinamomubube.pdfIn PDF document text
- https://vakukh.ru/wp-content/plugins/super-forms/uploads/php/files/2b92689e755b708ab2616365feca0b8c/jawiwizotafubazosepanilu.pdfIn PDF document text
- https://elbag.net/wp-content/plugins/super-forms/uploads/php/files/9c53e850fa63d7de8b0ea99eb998cdfc/30096136822.pdfIn PDF document text
- http://vitacanes.com/uploads/files/10544100028.pdfIn PDF document text
- http://bachova-terapia.sk/images/file/xesifodujuxepoxetividonan.pdfIn PDF document text
- http://xn--42-jlclgg6a3e.xn--p1ai/userfiles/file/86084676758.pdfIn PDF document text
- http://vdadanang.vn/app/webroot/assets/files/daxalowiba.pdfIn PDF document text
- http://kiuanai.com/userfiles/file/91093973686.pdfIn PDF document text
- http://ttlengenharia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a4a679cee12---jikeduvoboxatedejevisedu.pdfIn PDF document text
- http://ceraunavoltapizzeria.it/userfiles/files/19715000648.pdfIn PDF document text
- https://hotelritariccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/160bede4578670---11402933238.pdfIn PDF document text
- https://urbanplace.me/wp-content/plugins/super-forms/uploads/php/files/9007a562020f05cc76e9ab61e80139a1/98572088315.pdfIn PDF document text
- https://www.wikiwebagency.it/wp-content/plugins/super-forms/uploads/php/files/4942cbfe3c2f645fb27f424070c7a694/sawel.pdfIn PDF document text
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609b6c2ec88ee---77502847952.pdfIn PDF document text
- http://tevukasveza.lt/ckfinder/userfiles/files/54350552578.pdfIn PDF document text
- https://www.potterycommercials.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1609491af00036---dilunakapipe.pdfIn PDF document text
- http://ecbpolska.pl/wp-content/plugins/super-forms/uploads/php/files/704e9c1728c5fc606ffe4bbbd68afb9b/deteje.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_off0000e644.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE644 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fe56.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE56 | 18076 bytes |
SHA-256: ddd42f9aa106f078947ab3e77ada0f64d9be4743443d6d3b952b94c7245c5ba1 |
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font_02_sfnt_off00012d84.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12D84 | 11208 bytes |
SHA-256: c64b3db2eca949cf4d90ece03912b2fa7612ef7a5225c03c5b71e8a2f2cbedbd |
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