MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file contains embedded JavaScript and a significant number of external URIs, many of which point to compromised websites or disposable hosting, indicating a link farm designed to redirect users. The ClamAV detection and ML classifier strongly suggest malicious intent, likely phishing or malware delivery through these redirects.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
Heuristics 7
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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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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://philabc.ru/uplcv?utm_term=android+studio+calendar+widget PDF link annotation
- http://architettotoma.it/userfiles/files/26985298693.pdfIn PDF document text
- http://pietrek.com/MARCUS/files/file/57970241317.pdfIn PDF document text
- https://gmnavarra.es/ckeditor/files/losevumowadutalo.pdfIn PDF document text
- http://rkenterprisesonline.com/FCKeditor/file/nujokojimewuwavubinusovap.pdfIn PDF document text
- http://www.skupp.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1614e0656a8c6e---kasofakiseviw.pdfIn PDF document text
- http://ex2010.com/uploadfile/file/2021091713032473499.pdfIn PDF document text
- https://kvartira-zalog.ru/wp-content/plugins/super-forms/uploads/php/files/68b8a94b5a7535e3e60c87452bc4abb3/59220487571.pdfIn PDF document text
- http://www.s4b.nl/upload/files/furoziresavog.pdfIn PDF document text
- https://clubberia.com/js/ckfinder/userfiles/files/52926487327.pdfIn PDF document text
- https://telliogluhukuk.com/userfiles/file/65858812918.pdfIn PDF document text
- http://school15-tyumen.ru/f/94725241465.pdfIn PDF document text
- https://spitalmoldovanoua.ro/ckfinder/userfiles/files/fozajolu.pdfIn PDF document text
- https://kristinanamaste.eu/files/motugesotanugixabemasaju.pdfIn PDF document text
- http://bagpack.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/16143020c157b0---bujas.pdfIn PDF document text
- http://ricarda-allegra.de/userfiles/file/96821291583.pdfIn PDF document text
- http://tmacfashion.com/ckfinder/userfiles/files/bozezidovomowezuvupuxizud.pdfIn PDF document text
- http://meghdoothsuzuki.com/uploads/27652702220.pdfIn PDF document text
- http://kdwatch.net/upload/files/2021090303230231.pdfIn PDF document text
- https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/161386742b1dbb---mifovog.pdfIn PDF document text
- https://mm-podium.ro/userfiles/file/29487985506.pdfIn PDF document text
- https://camgloberealtor.com/userfiles/file/87327654283.pdfIn PDF document text
- http://agierresrl.it/userfiles/files/39255145335.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_off0000b116.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB116 | 15736 bytes |
SHA-256: 9c8a600a7b33b04b54bf6436b9a7d0c47f5f17b8ef6abd83ecdf4d1e21026868 |
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font_01_sfnt_off0000d8dd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8DD | 10712 bytes |
SHA-256: 484b4a760d8dcb1e4cf69be754059f41a60a4c87591eaf063d3a3a96196451b7 |
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font_02_sfnt_off0000f182.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF182 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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