MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
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 potentially malicious content. The ClamAV detection and ML classifier strongly suggest a phishing or trojan payload delivery mechanism. The document body is unreadable, but the heuristic firings and URL analysis are sufficient to determine the malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9970
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 http://5percent-design-action.com/upload/users/files/96849562254.pdf In PDF document text
- http://lavera.it/wp-content/plugins/formcraft/file-upload/server/content/files/1609a1cafd0231---susivolapatuzo.pdfIn PDF document text
- https://1sis.com/wp-content/plugins/formcraft/file-upload/server/content/files/16105c20c83423---36028667878.pdfIn PDF document text
- https://northstarexecutivesearch.com/wp-content/plugins/super-forms/uploads/php/files/8ad27f65fe4866613ca8b289c0bcb38b/92066573377.pdfIn PDF document text
- https://yidinfo.net/wp-content/plugins/super-forms/uploads/php/files/ktt915j1p3prqdd9g59bgianel/duduraxatenuvepi.pdfIn PDF document text
- http://www.alliance-bio.com/user_data/editor/ckfinder/core/connector/php/upload/files/zuxugaratogizegivuxonasi.pdfIn PDF document text
- http://xn--b1ahhafccpgkb2bxo.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/d9d5ca1b74392a98a3ecaad0660e9edf/towejunabidekusoto.pdfIn PDF document text
- http://degeninhotel.ru/admin/ckfinder/userfiles/files/20819253209.pdfIn PDF document text
- http://abwcoliseum.com/uploads/files/nomuxokedu.pdfIn PDF document text
- https://lacecinella.com/writable/public/userfiles/file/77898299019.pdfIn PDF document text
- http://lynxitservices.com/ckfinder/userfiles/files/18836217866.pdfIn PDF document text
- http://www.movingintofreedom.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b3a6096e78---pumevoxinulubuzuxurejor.pdfIn PDF document text
- https://augsburger-dartliga.de/uploads/file/78313432013.pdfIn PDF document text
- https://vate-tire.ru/wp-content/plugins/super-forms/uploads/php/files/418164e23ac20209e2dbd2610773e8ba/vogik.pdfIn PDF document text
- http://mazurubezpieczenia.pl/zdjecia/fck/file/46589234054.pdfIn PDF document text
- http://botosani.ro/img/uploads/file/mopejem.pdfIn PDF document text
- http://mirembeestate.co.ug/wp-content/plugins/formcraft/file-upload/server/content/files/160732c92e4c86---lirokima.pdfIn PDF document text
- http://pressvaluation.net/userfiles/file/90889828424.pdfIn PDF document text
- https://envomask.com/wp-content/plugins/super-forms/uploads/php/files/d8f02e7757f882af6531d99d221952c3/23090024487.pdfIn PDF document text
- https://zapret-rf.org/web/img/podborky/files/daxatuxupibuxaweguta.pdfIn PDF document text
- https://www.frontierexim.com/wp-content/plugins/super-forms/uploads/php/files/ki4pr9bmnhlohg4egt7ls579ad/40058560098.pdfIn PDF document text
- http://bluecars.pl/userfiles/file/vadirapu.pdfIn PDF document text
- http://interiorconsignments.com/media/file/18907356168.pdfIn PDF document text
- https://zionapostolicministries.org/uploads/file/22284138021.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=answers+to+mymathlab+quizzesPDF 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_off0000fe1d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE1D | 11000 bytes |
SHA-256: 86323f3d12447f0cc3368a46b7b2dfb5fa72d6580e34b870288d54d15ed26031 |
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font_01_sfnt_off0001179a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1179A | 18292 bytes |
SHA-256: 7589a5a75d2e13a2d935283aa0d153ec18f704c8a67838895e74132f878a69a4 |
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font_02_sfnt_off0001465a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1465A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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