MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file is identified as malicious by ClamAV and an ML classifier, with heuristics indicating it functions as a link farm. Several URLs point to compromised WordPress sites, suggesting an attempt to host or distribute malicious content. The presence of external URIs and link farm characteristics points towards a phishing or SEO manipulation attack vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://www.aserspa.net/wp-content/plugins/super-forms/uploads/php/files/90koqu291h8me3hofu143h1qsh/73530607138.pdf In PDF document text
- http://grafiport.com/userfiles/file/53734345188.pdfIn PDF document text
- http://schouteninterieurwerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1606c99f6416c7---36907728891.pdfIn PDF document text
- http://diysmart.net/userfiles/file/21118499446.pdfIn PDF document text
- http://freeski.hu/freeski/file/84514328334.pdfIn PDF document text
- http://www.goldenlantern.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160ac0bc954fe1---zasoxo.pdfIn PDF document text
- https://kede.org/userfiles/file/23215863978.pdfIn PDF document text
- https://a1-recruitment.fr/v2011/Files/fck_upload/file/xijinixisovagudupakareva.pdfIn PDF document text
- http://szpk.hu/_user/file/repanivuxezuk.pdfIn PDF document text
- http://activesolutionelectric.com/images/file/57954223715.pdfIn PDF document text
- https://tosto.cl/ckfinder/userfiles/files/gekub.pdfIn PDF document text
- http://jagatjyotischool.org/jagatjyotischool/userfiles/file/kuzitilekewamelidixexaf.pdfIn PDF document text
- http://didaconcept.com/admin/fckeditor/file/vogek.pdfIn PDF document text
- http://3dprofi.net/images/uploads/file/widusagan.pdfIn PDF document text
- https://www.cedicar.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f8aaf8ad56e---xobofetakasow.pdfIn PDF document text
- https://pottoka.info/files/galeria/files/pifituzepozusorajod.pdfIn PDF document text
- http://pokorny-podlahy.cz/UserFiles/File/83908185973.pdfIn PDF document text
- http://simpelms.nl/userfiles//files/5075369797.pdfIn PDF document text
- http://metzpaintings.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a40e4b02ecc---71121325620.pdfIn PDF document text
- http://metalzilembo.it/userfiles/files/fatazifimu.pdfIn PDF document text
- https://2greenchicks.com/wp-content/plugins/super-forms/uploads/php/files/773a85fc576653ade87cba7fb8ba5a53/gijakozefomofema.pdfIn PDF document text
- https://dazzlin.co.uk/wp-content/plugins/super-forms/uploads/php/files/346b86b1fc4bbc37c5a9835751bb5442/gulop.pdfIn PDF document text
- https://www.frankreich-ferien.ch/wp-content/plugins/formcraft/file-upload/server/content/files/1607a187b9167f---sefobogumiw.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=kirby+and+the+amazing+mirror+rom+hackPDF 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_off0000ff4e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF4E | 11000 bytes |
SHA-256: d2354048ae9effd4204f49ad61f7922ca73afb68339ae9ab2609747d748817f9 |
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font_01_sfnt_off0001187d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1187D | 17576 bytes |
SHA-256: ae5a07da92d2489985ba5d0879735e7c74b556e7201466581fd5337e753365cb |
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font_02_sfnt_off000146e5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x146E5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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