MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external links, many of which point to compromised WordPress upload directories or disposable hosting, indicating a link farm designed to distribute malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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 http://lobanowscy.pl/userfiles/file/3015663976.pdf In PDF document text
- http://divapharma.com/uploaded/file/vofadanabumebene.pdfIn PDF document text
- https://perfecthospitals.org/ckfinder/userfiles/files/wasaletoninagilanuz.pdfIn PDF document text
- https://ontogepszerviz.hu/editor_up/67930982715.pdfIn PDF document text
- https://www.bouldersudbury.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613bdc8bde936---92422890534.pdfIn PDF document text
- https://tfnd.org/wp-content/plugins/super-forms/uploads/php/files/b8f4675b13eebb7aca3dc1045a42d38a/37777516139.pdfIn PDF document text
- https://lesura.net/userfiles/file/78216136169.pdfIn PDF document text
- https://romalasergroup.com/userfiles/files/zumunufezufutesizunodesi.pdfIn PDF document text
- http://hillsdalehorseboarding.com/ckfinder/userfiles/files/46189890390.pdfIn PDF document text
- https://aksusu.com/upload/files/25501330863.pdfIn PDF document text
- http://chugguwang.com/files/fckeditor/file/55100626476.pdfIn PDF document text
- https://rimsball.com/ckfinder/userfiles/files/doxejedunabakasezewolevat.pdfIn PDF document text
- https://asiapharma.la/files/files/fetikigevakuzujeb.pdfIn PDF document text
- https://bokaichenyu.com/upload/files/55132857862.pdfIn PDF document text
- http://hwayinn.com/image/files/20210906_222627.pdfIn PDF document text
- http://civicwomen.com/ckfiles/files/gitorapaf.pdfIn PDF document text
- http://www.prctech-th.com/ckfinder/userfiles/files/jufamaguvirasajig.pdfIn PDF document text
- https://deconkhoemanh.com/wp-content/plugins/super-forms/uploads/php/files/m6g3lr35eftu5hfif6ji3hlpfo/72338576078.pdfIn PDF document text
- http://plusk-car.com/js/upload/files/xomopekilin.pdfIn PDF document text
- http://trunglam.vn/uploads/userfiles/file/13340339214.pdfIn PDF document text
- https://fengshan-zhennangong.org/upload/ckfinder/files/23388513707.pdfIn PDF document text
- http://www.maderas-navarro.com/ckfinder/userfiles/files/41697643862.pdfIn PDF document text
- http://www.tobywells.org/media/fckdir/file/bilon.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=date+format+in+androidPDF 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_off0000df88.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF88 | 18012 bytes |
SHA-256: 832ef25cb0de230d4f0de9efb09540ce8ff35c63cd869fddce9bfe466a833be0 |
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font_01_sfnt_off00010ebd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10EBD | 10300 bytes |
SHA-256: d8706d89342f6e1a05b1035ce5d98c2eccf07fa31c1a82b732f5f9d43c742f4c |
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font_02_sfnt_off000125ec.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x125EC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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