MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, directing users to multiple external websites, some hosted on compromised CMS platforms. The presence of numerous URLs, many with 'utm_term' parameters suggesting tracking, reinforces the phishing or malware distribution intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://synerhu.ru/uplcv?utm_term=android+lower+volume+below+minimum PDF link annotation
- http://ajisushionline.com/uploads/files/62018013200.pdfIn PDF document text
- http://auburn-properties.com/userfiles/files/ropor.pdfIn PDF document text
- https://cosplay-expo.it/ckfinder/userfiles/files/fepibajulekirorixe.pdfIn PDF document text
- http://bburago.info/admin/fckeditor/userfiles/file/pivajakazowuvizor.pdfIn PDF document text
- http://www.stallionreadymix.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16134e0a77eb29---suwedim.pdfIn PDF document text
- http://www.santamyoga.be/images/file/rakusasan.pdfIn PDF document text
- http://likuidart.com/files/ckeditor/files/pevikasuteliboxadu.pdfIn PDF document text
- https://ehblending.com/wp-content/plugins/super-forms/uploads/php/files/cdc54bd6a0fc0d9b58e5a0668f890d27/damusanazepel.pdfIn PDF document text
- http://localhomesales.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16147b7a13eddb---37664627133.pdfIn PDF document text
- https://laxmigrouppune.com/wp-content/plugins/super-forms/uploads/php/files/e20b96ee070d64212050de6b7c851b31/81115638791.pdfIn PDF document text
- http://litho-and-co.fr/ckeditor/upload/files/46138641316.pdfIn PDF document text
- http://jr-bang.com/uploadfiles/20210913181736.pdfIn PDF document text
- https://grupa-energia.pl/attachments/file/72163327715.pdfIn PDF document text
- http://robalton.es/Albums/images/file///lezorur.pdfIn PDF document text
- https://hohsingfiber.com/ufiles/files/kowuveretakodoged.pdfIn PDF document text
- https://www.tctnanotech.com/wp-content/plugins/super-forms/uploads/php/files/ef5fb4ff8fd9f207f364953054a0dfc9/ginedofew.pdfIn PDF document text
- https://petribax.com/userfiles/file/55378579700.pdfIn PDF document text
- https://coastalholidayproperty.com/ckfinder/userfiles/files/19990291724.pdfIn PDF document text
- https://impariant-club.ru/wp-content/plugins/super-forms/uploads/php/files/3cafab874bb0db7e57d43da17709028a/84792566262.pdfIn PDF document text
- https://orkhaconstruction.com/wp-content/plugins/super-forms/uploads/php/files/rodbrord6n8r7v85bdohag36bc/gedivivowemijebube.pdfIn PDF document text
- https://kalitelivideoizle.com/resimler/files/zonerebumebanugogakimuki.pdfIn PDF document text
- http://baharemadinah.com/wp-content/plugins/formcraft/file-upload/server/content/files/161491e252a19e---tivufolipunowe.pdfIn PDF document text
- http://coutleelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/luwakijidafenupovowe.pdfIn PDF document text
- http://alconsprom.ru/ckfinder/userfiles/files/vepezikokopakipuke.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_off0000d70e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD70E | 10352 bytes |
SHA-256: 0db59269533f23ec6cf993ed1c1ce0b338f8b070992078189f892c3409e22553 |
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font_01_sfnt_off0000ee5e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE5E | 17712 bytes |
SHA-256: 527ec06f4196400432d5aaf95727eb5f9ffe5ab46f3757f520b5209f575e7652 |
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font_02_sfnt_off00011c57.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C57 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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