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 are hosted on compromised CMS uploads or disposable domains, indicating a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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 https://queure.ru/uplcv?utm_term=infinite+health+cheat+gta+5+pc PDF link annotation
- http://nakamurasangyou.jp/app/webroot/uploads/files/motosone.pdfIn PDF document text
- https://yellowstonewildlife.com/46221081562.pdfIn PDF document text
- https://ibericadearmerias.com/file/28162226062.pdfIn PDF document text
- https://lanjutpt1.com/contents/files/pudezaxejubusi.pdfIn PDF document text
- http://weddingdove.tw/uploads/files/202109180619323896.pdfIn PDF document text
- https://paloaltospeakerseries.com/wp-content/plugins/super-forms/uploads/php/files/2bfe3d4212795681c7949b36e288ca9b/25302209768.pdfIn PDF document text
- http://studioingegneriavaragnolo.com/userfiles/files/gejerazijavop.pdfIn PDF document text
- http://cochemical.com/upload/files/46947874019.pdfIn PDF document text
- http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/1613f117483da1---46775736285.pdfIn PDF document text
- http://ewtch.com/upload/files/mejodanope.pdfIn PDF document text
- http://trackeg.com/en/wp-content/plugins/formcraft/file-upload/server/content/files/16143640c3c94d---98563143172.pdfIn PDF document text
- http://htk2.altrodesign.eu/ckfinder/userfiles/files/56416130724.pdfIn PDF document text
- http://castudio.eu/userfiles/files/78979119021.pdfIn PDF document text
- http://www.ishvani.com/www/js/ckfinder/userfiles/files/22264830429.pdfIn PDF document text
- http://gima.ge/admin/ckeditor/ckfinder/userfiles/files/58234513746.pdfIn PDF document text
- http://genarchi.com/data/temp/file/wibol.pdfIn PDF document text
- http://aksaaydinlatma.com/img/editor/image/file/jobujamoripukagi.pdfIn PDF document text
- https://www.hermanosvalerorecio.com/ckfinder/userfiles/files/zozusaweroxenozuvelavuvu.pdfIn PDF document text
- https://www.mozartcantat.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161376ec66a2e0---welodipub.pdfIn PDF document text
- http://konferencii.org/js/ckfinder/userfiles/files/47335328536.pdfIn PDF document text
- http://ebsenglish.net/_UploadFile/Images/file/61184251712.pdfIn PDF document text
- http://longarmacademy.net/fckeditor/userfiles/file/52098271776.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_off0000b074.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB074 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c88b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC88B | 10456 bytes |
SHA-256: 8422653569ddec20562fe5da83c833d9cbdb750778f49b4234f2f987a14f3700 |
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font_02_sfnt_off0000e039.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE039 | 14960 bytes |
SHA-256: a034db6b0b1d2c794bca19d219704cbb1be3aa51e0e55d2d4512a0e8637b2a0c |
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