MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains an embedded JavaScript stream and numerous external URIs, many of which point to compromised WordPress sites or disposable hosting, forming a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or malware distribution. The embedded JavaScript is a common technique for executing malicious code within PDFs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9912
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 http://potentialdesign.cn/userfiles/file/1630587750.pdf In PDF document text
- https://castilloexterior.org/ckfinder/userfiles/files/39249494296.pdfIn PDF document text
- https://associazionedynamica.it/uploads/file/58193113538.pdfIn PDF document text
- http://www.stratcareerservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d9ac09e6b8---dumalejoxokujavag.pdfIn PDF document text
- https://www.oasipizza.it/wp-content/plugins/formcraft/file-upload/server/content/files/16133657bc8814---71576946088.pdfIn PDF document text
- https://brianhigbielaw.com/UserFiles/file/36214704732.pdfIn PDF document text
- https://quatcongnghieput.com/uploads/files/tarebizoturosulumo.pdfIn PDF document text
- https://agronlogistics.com/userfiles/files/96746856233.pdfIn PDF document text
- https://burragebrothers.com/demo/jolie/beta/userfiles/files/92732667573.pdfIn PDF document text
- https://swift-tw.com/lcc/upload/files/kalagajubuz.pdfIn PDF document text
- http://carrozzeriardue.it/userfiles/files/2605396338.pdfIn PDF document text
- https://tckontrola.hr/files/rixivozopoxedabeteroduz.pdfIn PDF document text
- https://sportsslife.net/upload/ckfinder/files/kigurugusikuto.pdfIn PDF document text
- http://www.louisefarmersmith.com/admin/ckeditor/ckfinder/userfiles/files/lepejumuligo.pdfIn PDF document text
- http://nguyenphat.com/public/default/ckeditor/files/penufekuwupavive.pdfIn PDF document text
- http://aokisuper.com/ckfinder/userfiles/files/vabomatimukotivetu.pdfIn PDF document text
- https://aykutemlak.com/upload/ckfinder/files/tigifivejodat.pdfIn PDF document text
- https://nslogisticservice.com/userfiles/files/50477654345.pdfIn PDF document text
- http://handbook.hu/upload/page/file/40018812233.pdfIn PDF document text
- http://wangyiphk.com/userfiles/kizedozusozoketamu.pdfIn PDF document text
- http://kientrucphatloc.com/upload/files/putexaletuxoxiwifilez.pdfIn PDF document text
- http://sarahscupcakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612ecae8798cc---95272777047.pdfIn PDF document text
- https://mimpishio1.com/contents/files/tuwudobof.pdfIn PDF document text
- http://ls12368.com/userfiles/file/zasolodoparewemebulaz.pdfIn PDF document text
- http://softwarefactory.nl/images/file/nizusuwifu.pdfIn PDF document text
- https://noble-program.site/js/ckfinder/userfiles/files/1391541825.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=free+robux+no+fake+no+verificationPDF link annotation
- 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_off0000ea7d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA7D | 10592 bytes |
SHA-256: 883a14145a9c833ecc91aaeccf1ab9c8d982a6f7e87416a8a83ae491f37ca4fb |
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font_01_sfnt_off000102d3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x102D3 | 19232 bytes |
SHA-256: e5538ae7ee020fa8dba182efbea292d151f993a9a3bf8e3265318da728259e1c |
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font_02_sfnt_off00013570.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13570 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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