MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links, many pointing to compromised WordPress upload directories, indicating a link farm designed to host malicious content. ClamAV and ML classifiers flagged this PDF as malicious, specifically as a phishing trojan. While no scripts were extracted, the structure and URL analysis strongly suggest a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
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 http://www.telsercom.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a10f432350b---nanemijakapa.pdf
- https://daluxerealty.com/wp-content/plugins/super-forms/uploads/php/files/bgrukgsn57vvqi9gc3hdsb06j4/16854524898.pdf
- https://implantsdentairesdesmoulins.com/upload/editor/file/17328562980.pdf
- http://autodilykanka.cz/cmsimple/images/file/xogaziz.pdf
- https://growlocals.com/wp-content/plugins/super-forms/uploads/php/files/770c004d87d4911a2b1019fe5360b8da/16538426772.pdf
- https://pavillonwohlen.ch/userfiles/files/81634956752.pdf
- https://lightingsystemscol.com/wp-content/plugins/super-forms/uploads/php/files/83167c2bb650c33082f38616bb4484ff/41357598434.pdf
- http://www.tobywells.org/media/fckdir/file/77315840521.pdf
- http://www.texaco.bargiel.com.pl/ckfinder/userfiles/files/revad.pdf
- http://sosonomo.com/ckfinder/userfiles/files/jetulixivenasij.pdf
- http://thementalhealthadvocates.org/files/userfiles/file/toriju.pdf
- http://unityproductions.com/upload/files/63172528290.pdf
- https://fceresources.com/ckfinder/userfiles/files/napebudejakirele.pdf
- http://www.theagentpipeline.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6014eba306---63622162315.pdf
- http://chongqinghaohong.com/upload/files/petagut.pdf
- https://guijek.com/userfiles/file/kalodezuj.pdf
- http://antonellascarpittadesigner.it/userfiles/files/13917244966.pdf
- http://banner-ever.com/ckImg/files/wuvaw.pdf
- https://istocdukkan.com/userfiles/files/97801927211.pdf
- https://rewaqousha.net/userfiles/files/35643993700.pdf
- https://verlauf-ekb.ru/admin/ckfinder/userfiles/files/3447939007.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=atorvastatina+40+mg+bula+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_off0000ee52.bindb8d129126c3ca212f4506b7897a1104174d264502a14c8feebe26d7e5fb1420 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE52 | 19260 bytes |
font_01_sfnt_off0001204b.binb8c6cc18ffe5625fa982160dc53d812a579a97d09126c7a3d178a7621876cf02 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1204B | 11196 bytes |
font_02_sfnt_off00013a1d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13A1D | 16792 bytes |
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