MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, directing users to multiple compromised WordPress sites. These sites likely host phishing content or serve as download locations for further malicious payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://infrive.ru/uplcv?utm_term=triangle+and+inverted+triangle+symbol
- https://veritiesinstitute.com/wp-content/plugins/super-forms/uploads/php/files/e59df782600f96fcd75614184aeeb636/34397267473.pdf
- https://indacphuc.com/wp-content/plugins/super-forms/uploads/php/files/4v8e3gmhhd0evmrp50j62t7ibv/degexamerajip.pdf
- https://www.emmabowman.com/wp-content/plugins/super-forms/uploads/php/files/b3fae4ed8545b99199bc878b3853be6d/xagegedawitamufokezof.pdf
- https://www.onestopnaturalstore.ca/wp-content/plugins/super-forms/uploads/php/files/2vkavhuhn2d3k8ugh6p9dskqvv/mazukowelewifu.pdf
- http://la-roofers.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160b997847cb13---71749429330.pdf
- http://www.melodypods.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f19629c4a2---26160558484.pdf
- https://gachbinhduong.com/upload/file/wuvelilajowoweluruba.pdf
- http://dlt-nkp.com/fileupload//file/78076361496.pdf
- http://az4group.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608153ba71c8a---nufivaxajikurajulo.pdf
- https://www.a2zmedical.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16079ba89b9f4c---zoperakosefuzazulezule.pdf
- http://vdgairconditioning.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c18d90d6864---24986861675.pdf
- https://thejasmineway.net/wp-content/plugins/super-forms/uploads/php/files/5gnoqi2gg1n0gaqpso5qf0f876/gefesedokiwefugov.pdf
- http://argra.rs/wp-content/plugins/formcraft/file-upload/server/content/files/160c0586a76682---6431358716.pdf
- https://weeb.nu/userfiles/file/roziketaxoxajexede.pdf
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b1941c5750---kamixesovufetijak.pdf
- https://almuhja.ps/ckfinder/userfiles/files/20450651173.pdf
- https://www.hotwaterfactory.com.au/wp-content/plugins/super-forms/uploads/php/files/85b4cae7a36ad3040f8e49417d1a822c/vesawemojagusanafasuwa.pdf
- https://nepalipublisher.com/ckfinder/userfiles/files/14150056868.pdf
- http://kperrylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/29714702225.pdf
- http://thefutureofgolf.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1608a378aece26---wemujupufumasamujofewe.pdf
- http://franklinbristerharveyfamily.com/clients/a/a8/a8910385c57dfddac3c6311e2bd1422e/File/21385914636.pdf
- https://earthchartercities.org/wp-content/plugins/formcraft/file-upload/server/content/files/160b85c80dac9b---3931975315.pdf
- http://ecbpolska.pl/wp-content/plugins/super-forms/uploads/php/files/7d6bc54f3e8cdb7b444f991240069a12/76976143359.pdf
- 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_off000109ad.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109AD | 16792 bytes |
font_01_sfnt_off000121bf.bin1e13546312c31d8c62c8afc6f80553241a061478788d7c76ce0c39e5184cef12 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x121BF | 17508 bytes |
font_02_sfnt_off00014f3a.bin1eaf0485bb2c8a377629d14018d511807900fb258dd307d668e561d7d96bb3b1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14F3A | 10876 bytes |
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