MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1059.007 JavaScript
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript, which is a common technique for exploiting PDF viewers or delivering malicious content. The PDF also contains numerous external URIs, many of which point to compromised websites or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The ClamAV detection and ML classifier strongly indicate malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
Heuristics 7
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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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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://www.spoton.pet/wp-content/plugins/super-forms/uploads/php/files/rut2i4h1r2t8r20e42b90eh3an/gifudipomozow.pdf
- http://antwerp-rentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608549b15bffa---52333871514.pdf
- http://xedaptap.net/userfiles/file/gamurigojefesobowitunozu.pdf
- http://osc-pribor.ru/products_pictures/file/xenow.pdf
- http://cimkezes.hu/uploads/ckfinder/userfiles/files/kazotil.pdf
- https://www.pennlighting.com/wp-content/plugins/super-forms/uploads/php/files/391f5c053bd48c12c69005547e35626e/fivaxakilirunozusuna.pdf
- http://burningspearmarketplace.com/js/ckfinder/userfiles/files/zejokixakolug.pdf
- https://asigurareingermania.ro/wp-content/plugins/super-forms/uploads/php/files/2k19ne16crh7cjet3e7ldojiil/59821357463.pdf
- https://interesttour.com/wp-content/plugins/super-forms/uploads/php/files/f3a6b6fdf64a394aaaa05302d1530931/lisunivexisomosozevuzub.pdf
- https://shayangroup.net/wp-content/plugins/super-forms/uploads/php/files/3ca483db5407b0edb8e28d541bb381f5/medopow.pdf
- http://www.zav-mito.si/wp-content/plugins/formcraft/file-upload/server/content/files/1608b1a6b5ce35---zomurufadoxitowakoxal.pdf
- https://northstarexecutivesearch.com/wp-content/plugins/super-forms/uploads/php/files/95fdd5c198b50b8e55972d086514bec7/soleguxufinololele.pdf
- https://carlojans.com/cms/file/toreserilitedim.pdf
- http://projectbudapest.hu/wp-content/plugins/formcraft/file-upload/server/content/files/160abdc0fa83b4---ketalafamexinufevit.pdf
- https://mattweidnerlaw.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079e5a6e42dd---rixame.pdf
- https://mrmusicfoundation.org/wp-content/plugins/super-forms/uploads/php/files/aktd5eh830k68k1ehsba1ijo9s/51117513652.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/LPIa9PGmDLg/uplcv?utm_term=how+to+see+answers+on+instagram+questions
- 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://scripts.sil.org/OFL
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ea1a.bin113d7e04fced60ebd79ca06b551f3d144d9fdea07ab42a5946f59db722b7e1c0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA1A | 5152 bytes |
font_01_sfnt_off0000fb8c.bin3c69afb155649311f1a865076cc59e0921fa737eb4d6f3997e2bd57798e20ed7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB8C | 5468 bytes |
font_02_sfnt_off00010a4f.bin86f6602537baa8f8652bd6eb1a5bf35fc7c695a79d6ebe19bba341474eabc25a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10A4F | 11792 bytes |
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