MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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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://sanxuattrucauthangkinh.com/Images_upload/files/93540887481.pdf In PDF document text
- https://etevent.itweald.com/uploads/files/612caf250359d.pdfIn PDF document text
- http://erdivigado.hu/userkepek/file/26879175097.pdfIn PDF document text
- http://kstarsmall.net/userfiles/file///25172955251.pdfIn PDF document text
- http://jamoncup.es/wp-content/plugins/formcraft/file-upload/server/content/files/160cf1876351af---xabakakadisajutoleg.pdfIn PDF document text
- http://hanasushichoice.com/uploads/files/85047217183.pdfIn PDF document text
- http://boxshop.mn/userfiles/files/divokunevif.pdfIn PDF document text
- https://agenciaboom.com/wp-content/plugins/super-forms/uploads/php/files/b7uv5qkh84hfvm372rto5nntv2/watuzefezusomokivor.pdfIn PDF document text
- http://westernstudioservice.com/admin/userfiles/file/80259328444.pdfIn PDF document text
- http://kipia-nn.ru/userfiles/file/43244103167.pdfIn PDF document text
- http://grandbarnettfamily.com/clients/a/a0/a01b80d98e57c38af56892ab55e7d82f/File/togabiruziguvutisulaweli.pdfIn PDF document text
- https://living-stone.lu/userfiles/files/26693514245.pdfIn PDF document text
- https://www.scanworld.se/wp-content/plugins/formcraft/file-upload/server/content/files/160bcd2b4eea97---30195723105.pdfIn PDF document text
- http://dangkydoanhnghiep.org/hinhanh_fckeditor/file/vuvuferereliludanonilezuv.pdfIn PDF document text
- http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/16096823a8092e---34311967703.pdfIn PDF document text
- http://bagpack.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/16092602506108---lixitipidakesokowuvige.pdfIn PDF document text
- http://2478.ru/admin/ckfinder/userfiles/files/gemidulinunavewafuwi.pdfIn PDF document text
- http://premiumresourcing.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b5b9927665c---52055964264.pdfIn PDF document text
- http://bulgankhangai.mn/userfiles/files/19097441681.pdfIn PDF document text
- https://spencershaulageltd.co.uk/wp-content/plugins/super-forms/uploads/php/files/74df4109d48ab419fcfc679528730e44/39862464370.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=star+delta+control+circuit+with+timerPDF 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_off0000c261.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC261 | 16540 bytes |
SHA-256: 69e858e036d563c028d88351958dee4e34752a27805d806dce5f3947f30b8dc3 |
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font_01_sfnt_off0000ec73.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC73 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001048a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1048A | 10728 bytes |
SHA-256: ec39822777a96de5628f18d3f1a27951b3e185557e3cb00a2a40b95ccae8c9ec |
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