MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs pointing to compromised WordPress sites and other disposable hosting. These links form a link farm, a common tactic for phishing or distributing further malware. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or credential harvesting.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://pixomot.ru/uplcv?utm_term=is+67+a+prime+or+composite+number
- https://www.hs-hofgastein.salzburg.at/ckfinder/userfiles/files/xavipatujawemavidiviwew.pdf
- http://tipkeo.com/js/ckfinder/userfiles/files/gabebojofonu.pdf
- https://selectwifi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613002e7d89ff---52833051298.pdf
- http://thetestmag.com/userfiles/files/bazuno.pdf
- http://luckyassessoria.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16137e23e58cc0---94216629936.pdf
- https://humantouchtranslations.com/wp-content/plugins/formcraft/file-upload/server/content/files/1/161410b92331a2---nenanonulabowapapikesinuz.pdf
- http://aliancegroup.su/wp-content/plugins/formcraft/file-upload/server/content/files/1613cd6517da48---lopigajupesezobi.pdf
- https://ladulceseguros.ar/noticias/fckeditor/file/zimogetut.pdf
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140bac129b59---jipiserapugixusosadi.pdf
- http://verkoop-je-wagen.be/wp-content/plugins/formcraft/file-upload/server/content/files/16130289924127---vofarunomulawepukazad.pdf
- http://fbrasil.com/userfiles/file///mamazod.pdf
- https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/ad6356b4d30b267f6de88bb081dc3843/18648987308.pdf
- https://art4you.sk/editor_uploads/system/files/75827295724.pdf
- https://siemreaptraveltours.com/userfiles/file/joledovizel.pdf
- http://ambcavallon.eu/userfiles/files/56843492067.pdf
- https://olivier-daulte.com/ckfinder/userfiles/files/57012825426.pdf
- http://chinawin-consult.com/userfiles/66929582892.pdf
- http://1-sanya.com/blog_images/blog_/file/29513839809.pdf
- http://asqcert.net/files/files/jagefiriwubatorutoban.pdf
- http://lamgi.pl/ckfinder/userfiles/files/didimigabulusis.pdf
- http://vibestedu.com/_UploadFile/Images/file/pibalezogir.pdf
- https://miamiuniquelimo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613426384265b---56502572400.pdf
- https://hotararicedo.ro/files/files/wasutimodekezedotani.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_off0000bd8d.bin8e2f5d89e019f5910822750ee39bb9a984f884d295d20bde743c846e76989d29 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBD8D | 16388 bytes |
font_01_sfnt_off0000e794.bind35aa1cef25d30e254d6b1f68f358d0caa3a997be54ed1da6ec0b6d09b6520b1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE794 | 10900 bytes |
font_02_sfnt_off000100a9.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100A9 | 16792 bytes |
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