MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is a common technique for executing malicious code. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and the numerous unknown URLs indicate a link farm designed to redirect users to potentially malicious content. The ClamAV detection and ML classifier further support the malicious nature of this file, likely serving as a phishing lure or a downloader for further payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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 http://kamnitikamini.si/upload/files/xemomunanufarixi.pdf In PDF document text
- https://prosaison.fr/userfiles/files/73637081335.pdfIn PDF document text
- http://immodraft.eu/images/architekten_agentur_images_/file/finasonuvi.pdfIn PDF document text
- https://pointvirgule.ca/upload/editor/file/wupopakutuje.pdfIn PDF document text
- https://dacoma.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1615623fe891d7---tazevukutelopa.pdfIn PDF document text
- http://hongphuc.vn/userfiles/file/siliwam.pdfIn PDF document text
- https://www.die-umzugsfabrik.com/wp-content/plugins/formcraft/file-upload/server/content/files/16151d6733c979---gekevomod.pdfIn PDF document text
- http://hokkaido-love87.com/app/webroot/js/ckfinder/userfiles/files/xurawomofufisikasalagopu.pdfIn PDF document text
- http://dongamold.com/fckeditor/upload_files/file/duwisovorifenubur.pdfIn PDF document text
- http://status.cz/UserFiles/File/78942707408.pdfIn PDF document text
- https://istanbulbalbir.com/upload/ckfinder/files/mafiganafobegigeduveboz.pdfIn PDF document text
- https://saikekanglun.com/filespath/files/20211006182051.pdfIn PDF document text
- https://larrialdiak.es/files/galeria/files/namawa.pdfIn PDF document text
- http://netinflux.net/userfiles/file/65110256432.pdfIn PDF document text
- https://silverbirdmarketing.com/pages/images/file/mekumudenegolabup.pdfIn PDF document text
- https://magyar-logyogyasz.hu/fileok/file/zarugizakomevalana.pdfIn PDF document text
- http://www.fotografoeventimilano.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615e11f8bfad4---64781876979.pdfIn PDF document text
- http://azseal.net/uploads/userfiles/file/toxax.pdfIn PDF document text
- https://yauspeshen.com/ckfinder/userfiles/files/48226604427.pdfIn PDF document text
- http://bushurov.ru/images/files/burujiwisulufafoxawolu.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=y+group+air+force+model+paperPDF 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_off0000e59f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE59F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fdb1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFDB1 | 18708 bytes |
SHA-256: 80c4d85b90fbf112a6f8821a24b618e66acd128b7eb745c8e83f9822be8b7c52 |
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font_02_sfnt_off00012e8c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12E8C | 10676 bytes |
SHA-256: fa67ac132737c619aae51cf108dd5b82dab8e0305963b70d554e2f391eeb6128 |
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