MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a link farm pointing to multiple domains, including compromised CMS uploads and disposable hosting, suggesting a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or delivering a secondary payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9987
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://andrenickels.de/ckfinder/userfiles/files/gadowawetetozedogejowu.pdf
- http://for-rent-aalst.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071226d1e10d---jufes.pdf
- https://www.ayersworthglen.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072cc0be59fb---sogogoweboxaketanesopawo.pdf
- http://xn--e1aazeoc7d.xn--p1ai/images/shared/file/93797436721.pdf
- http://alibabashipping.com/userfiles/file/melefilexesotisukavixaz.pdf
- http://www.ashtralmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a095e0008f---bobuduzu.pdf
- http://pulsrmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072da9f996b1---66513581819.pdf
- http://sbstroy53.ru/img/files/63485076505.pdf
- http://abbuffalowings.com/uploads/files/34962890046.pdf
- http://norrlandet.se/userfiles/file/tarafag.pdf
- https://maxflowfans.com/userfiles/file/1135627097.pdf
- https://www.thecandystoresudbury.com/wp-content/plugins/super-forms/uploads/php/files/9m9adksi99qgq50fj7mnvdm865/45253746438.pdf
- https://www.sacict.or.th/ckfinder/userfiles/files/60172178315.pdf
- https://mandalaconfeccao.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160861ef3c3830---55811931160.pdf
- http://isgsrl.it/images/file/12513611760.pdf
- https://swift-tw.com/lcc/upload/files/99229571983.pdf
- http://bienchidan.org/uploads/files/zuzofaxufesidamumivedugep.pdf
- https://flylights.pl/wp-content/plugins/super-forms/uploads/php/files/mgld1jkqova710cc56m2jqp1dd/jibizimebisuwumonamul.pdf
- http://americasbestmanassas.com/uploads/files/rufikupasedapukimepimusur.pdf
- https://elearning-chemistry.ro/userfiles/file/saribuniwunewixusurufigij.pdf
- https://vrindaindia.com/php/joseph/uploads/file/gejawuguroluwu.pdf
- http://www.jobsincrete.gr/images/_user_na/file/vijuv.pdf
- http://csc010.com/userfiles/file/20210621232008_i2p8g0.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=2+ghz+to+mhz
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ef0a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF0A | 16792 bytes |
font_01_sfnt_off0001071c.bin52615399e5822b697f2d9789fba4ae95baaef17705e7d34164165b370f7ae1eb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1071C | 18664 bytes |
font_02_sfnt_off00013767.bin5d352c54ccbf44de48e15c6f8e7a9823a0dfe7478668d6d91fb25abc1a1a95a4 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13767 | 9832 bytes |
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