MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample contains embedded JavaScript, which is often used to redirect users to malicious sites or exploit vulnerabilities. Several heuristics indicate the PDF is part of a link farm, with many URLs pointing to compromised WordPress installations or disposable hosting, suggesting a phishing or malware distribution campaign. The ClamAV detection as 'Pdf.Phishing.Trojan' further supports this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9848
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://hauptlawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/58313157714.pdf In PDF document text
- https://arenda1s.ru/wp-content/plugins/super-forms/uploads/php/files/65c8d7c14bff41361cf1ba84910b7511/89538304138.pdfIn PDF document text
- http://oneself.pro/wp-content/plugins/formcraft/file-upload/server/content/files/160c8cc2fa1602---84443380717.pdfIn PDF document text
- https://cvconstructionsgoa.com/pharma/admin/userfiles/file/xokejozubebetex.pdfIn PDF document text
- http://www.kissdocs.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16094c9be27b49---51641399871.pdfIn PDF document text
- http://www.opencalgary.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a3eca7153ef---loduwu.pdfIn PDF document text
- http://kentcliffordreunion.com/clients/a/aa/aa84b18e55fac3ff3c25336c5005d9e5/File/56101235116.pdfIn PDF document text
- https://mziagroup.com/wp-content/plugins/super-forms/uploads/php/files/q5791tbil4pc7cntj6tnpk53r8/93194330833.pdfIn PDF document text
- http://mgmkt.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608635b6efd51---kixigebapujopavigoxa.pdfIn PDF document text
- https://flycam.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1607c328fcc013---paxekosufajuvaj.pdfIn PDF document text
- http://agcslohian.com/userfiles/file/12638225125.pdfIn PDF document text
- https://birgatour.mn/js/ckfinder/userfiles/files/37186979655.pdfIn PDF document text
- http://studiotecnicofrisoli.com/userfiles/files/15734585726.pdfIn PDF document text
- http://kolaykanal.com/userfiles/files/telibetabixug.pdfIn PDF document text
- http://handbook.hu/upload/page/file/91507153991.pdfIn PDF document text
- http://securitydirect.it/wp-content/plugins/super-forms/uploads/php/files/6f3b506ba103efc7fa18b31c33fcbd18/jusafosefebez.pdfIn PDF document text
- http://www.rolstoellift.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fc66abe4c1---66968694837.pdfIn PDF document text
- https://hopefor.today/wp-content/plugins/super-forms/uploads/php/files/38af0f0776fb87a9383f4a35a184c931/napopit.pdfIn PDF document text
- https://propbrains.com/wp-content/plugins/super-forms/uploads/php/files/tt3rfj5hrp27j4atq04h1vfvj3/99666111229.pdfIn PDF document text
- http://vasilii-orlov.fun/wp-content/plugins/super-forms/uploads/php/files/5280c693ac045b5bf811a45a4491b7a3/47043774940.pdfIn PDF document text
- https://reflexlighting.com/wp-content/plugins/super-forms/uploads/php/files/efd74d8c053e9f8be08678428356dc31/mulezubafalo.pdfIn PDF document text
- https://sp-pir.ru/wp-content/plugins/super-forms/uploads/php/files/ad1ebb62b121469bb3eea2e444d17ccf/kajuxajosawofaxabojoxo.pdfIn PDF document text
- https://autosofortkauf.ch/wp-content/plugins/super-forms/uploads/php/files/2erngrd3q66p2ih8vfapfv6526/40792456616.pdfIn PDF document text
- https://cradlegold.com/wp-content/plugins/super-forms/uploads/php/files/u3tseu82akpdve83svks95d5k9/katukalabixodawu.pdfIn PDF document text
- https://www.nestroots.com/wp-content/plugins/super-forms/uploads/php/files/8mmj8rm7tjlt1kg318t6ieg540/fuzeteminetimonukinosegip.pdfIn PDF document text
- https://plumcourse.com/wp-content/plugins/super-forms/uploads/php/files/586eabdbe9540b999b0730002db6c4f4/3321799377.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=determine+whether+the+function+is+even+or+oddPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#Referenced by PDF JavaScript
- http://purl.org/dc/elements/1.1/Referenced by PDF JavaScript
- http://ns.adobe.com/pdf/1.3/Referenced by PDF JavaScript
- http://ns.adobe.com/xap/1.0/Referenced by PDF JavaScript
- http://ns.adobe.com/xap/1.0/mm/Referenced by PDF JavaScript
- http://ns.adobe.com/xap/1.0/rights/Referenced by PDF JavaScript
- 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_off0000ecfc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECFC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0001050e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1050E | 17664 bytes |
SHA-256: 297769115fa4769ebef0d715e0603b128bd661b351919b990185636b922c7ae3 |
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font_02_sfnt_off000133b1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x133B1 | 10788 bytes |
SHA-256: 932959ac70d3791a81b28e900f7371e0e0dc5bff9e772abcb868de9df2add31f |
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