MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a malicious PDF, as indicated by ML classification and ClamAV detection. It contains numerous external links, many pointing to compromised CMS upload directories or disposable hosting, suggesting a link farm used for phishing or malware distribution. The PDF's structure and embedded links are consistent with a spearphishing attachment designed to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9858
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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://nomylo.ru/uplcv?utm_term=electronic+commerce+from+vision+to+fulfillment+pdf PDF link annotation
- https://renebeumer.nl/userfiles/file/88141454011.pdfIn PDF document text
- https://www.elektrobetrieb-scholz.de/wp-content/plugins/formcraft/file-upload/server/content/files/160bc3b85d42fe---60754107483.pdfIn PDF document text
- https://xn-----6kcabagcgfjsxjciriy6alkh6a7aqk.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/1cac83d3db01ae5d83a2f319cbf9e5d7/paluxumela.pdfIn PDF document text
- http://www.brennholz-heinlein.de/wp-content/plugins/formcraft/file-upload/server/content/files/160bff80fa982c---72115758589.pdfIn PDF document text
- http://www.goataxiservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607bfa4e8575e---nenifunopilowezu.pdfIn PDF document text
- http://hccc252.ca/clients/e/e4/e484b38507f190a955b66748903449e1/File/guxaxulinisosojidur.pdfIn PDF document text
- https://gfow.om/wp-content/plugins/super-forms/uploads/php/files/qf5ck66v32dgieu8j1ug0q2mj5/bogofavefozux.pdfIn PDF document text
- https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1609cbed4604cf---gudirivil.pdfIn PDF document text
- http://akbmodel.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078813f781c4---53943942123.pdfIn PDF document text
- https://claphamjunction.com.au/wp-content/plugins/super-forms/uploads/php/files/509ee34b640cb521194553bbb4e93ce5/wodusifaliwufif.pdfIn PDF document text
- http://www.cascinasorigherio.it/wp-content/plugins/formcraft/file-upload/server/content/files/1608fc31de038a---wudilujegimeviresaforadu.pdfIn PDF document text
- http://smn69.com/clients/866038/File/10167350913.pdfIn PDF document text
- https://www.ikedatosou.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d5a5b52eb7---disizenojasejirenev.pdfIn PDF document text
- https://emilline.dk/ckfinder/userfiles/files/belarozemirunusube.pdfIn PDF document text
- http://brandnewgoods.net/userfiles/file/vozifemetosavovel.pdfIn PDF document text
- https://fastcomputer.vn/wp-content/plugins/super-forms/uploads/php/files/bdf35315325b1096c8fe4d78f107e228/ditixir.pdfIn PDF document text
- http://accessprecision.com/userfiles/file/82724155995.pdfIn PDF document text
- http://lapawan15.com/shop/fck_file/file/telakodi.pdfIn PDF document text
- https://listapp.in/ci/userfiles/files/30151538207.pdfIn PDF document text
- http://www.guaitoli.eng.br/wp-content/plugins/formcraft/file-upload/server/content/files/160bcc084e76d2---xipuxovulinekekuzadowoka.pdfIn PDF document text
- https://www.guestquesttravelmedia.com/wp-content/plugins/super-forms/uploads/php/files/e6vn8ge8hpds58pa9ekf9u5flv/92474355249.pdfIn PDF document text
- http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/427ne6g61dh8q3qq1lq36d73f7/65359179281.pdfIn PDF document text
- http://www.julitolaschools.com/wp-content/plugins/formcraft/file-upload/server/content/files/160908137bc961---25318528956.pdfIn PDF document text
- https://www.dekleinewerf.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160bb12efa6817---maduxojetezopuwajuze.pdfIn PDF document text
- https://www.euroservicemilano.it/wp-content/plugins/formcraft/file-upload/server/content/files/1607228b0b8b7a---72099832470.pdfIn PDF document text
- https://tomclarkvoiceovers.com/userfiles/files/baralidab.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_off0001771f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1771F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00018f36.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x18F36 | 10768 bytes |
SHA-256: d04a208af9ad45a346d3c2dd4db7dda95feebf6aa12d12c1c87404b5f16b2bb0 |
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font_02_sfnt_off0001a7fa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1A7FA | 17920 bytes |
SHA-256: 4920448ef76f426251fbf4774e956f78578c13d29227c66c0e83c1bd2584d862 |
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