MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to compromised CMS upload directories or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The presence of these links and the overall detection indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9919
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://robertoantoniz.com/resources/original/file/vowidez.pdf In PDF document text
- https://edinburghpools.com/contents//files/divor.pdfIn PDF document text
- http://iwish-cosmetics.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c54c9b78ba5---xaxebamejusoxigaxoxewag.pdfIn PDF document text
- https://carthink.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608b9166bdf3a---95628331929.pdfIn PDF document text
- http://humanitool.ru/userfiles/file/gawasexavajiwuza.pdfIn PDF document text
- http://inwallendorf.de/userfiles/file/78066897963.pdfIn PDF document text
- http://www.ambredore.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a803e82faec---59203897628.pdfIn PDF document text
- http://qlinairnv.be/userfiles/file/fubikusesezun.pdfIn PDF document text
- http://www.hcibatiment.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160c8bd7c03e6b---bupakabomajorare.pdfIn PDF document text
- http://savoie-outils-coupants.com/ckfinder/userfiles/files/27590821300.pdfIn PDF document text
- http://dermalab.pl/userfiles/file/fikositotusitaro.pdfIn PDF document text
- https://habibitours.com/ckfinder/userfiles/files/81225917005.pdfIn PDF document text
- https://soroptimist.be/oldsite/intranet/ckeditor/ckfinder/userfiles/images//files/vasowawowobidel.pdfIn PDF document text
- http://saraiaser.nl/userfiles/file/18794564903.pdfIn PDF document text
- http://www.dramayaramendes.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606f9794daf0d---9123058837.pdfIn PDF document text
- https://www.alertgy.com/wp-content/plugins/super-forms/uploads/php/files/b24c81a0433c7b7a87a845cfa74a59ff/95414401245.pdfIn PDF document text
- http://elliptical-trainers.ru/ckfinder/userfiles/files/11152983943.pdfIn PDF document text
- http://chipublichouse.com/ckfinder/userfiles/files/29331401860.pdfIn PDF document text
- https://fruitssupplier.com/app/webroot/img/files/dabusitanir.pdfIn PDF document text
- http://shiny-baby.com/fileimage/file/wapitewunetepuwelu.pdfIn PDF document text
- https://eclipsetheaters.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b8fe7f6e857---24312662040.pdfIn PDF document text
- https://tehnol.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160a36db0828e8---94072713078.pdfIn PDF document text
- https://ceadersvalet.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6f09caff14---41271282505.pdfIn PDF document text
- https://webhostmurah.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609c66b3566bc---karewixedo.pdfIn PDF document text
- https://avis-medical.ma/wp-content/plugins/super-forms/uploads/php/files/4382934e0d9958a00bc86f3e4eb33c33/82360664325.pdfIn PDF document text
- http://www.jhannahs.com/wp-content/plugins/formcraft/file-upload/server/content/files/16091193939a40---medibizegivaw.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=introduction+to+action+research+in+education+pdfPDF 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_off0000f3bf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3BF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010bd1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10BD1 | 18052 bytes |
SHA-256: a43a5dc1d3e6edc421241e216bd2ea10bf2d478f7fd6f060c7e09666a3c9ca17 |
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font_02_sfnt_off00013a85.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13A85 | 10720 bytes |
SHA-256: 9f621b28fefc65b49fc6ea5d1feb81a8ee15c86aea8eb786349ed8b6c48981b2 |
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