MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, indicating an attempt to execute code upon opening. It also features a link farm pointing to multiple external URLs, some hosted on compromised WordPress sites, suggesting a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://ledseoul.com/userData/board/file/wuxetudo.pdf In PDF document text
- http://cuacuonductudong.com/upload/files/11924948897.pdfIn PDF document text
- https://ekransamara.ru/files/16654939319.pdfIn PDF document text
- http://ewtch.com/upload/files/66458127971.pdfIn PDF document text
- http://tlumacz-bialystok.pl/pliki/file/56091969036.pdfIn PDF document text
- http://zae.me/datafiles/file/52428910030.pdfIn PDF document text
- http://www.la-rocca.pl/app/webroot/files/files/71477503488.pdfIn PDF document text
- http://www.workbythai.com/admin/assets/images/76424682750.pdfIn PDF document text
- http://wohingltd.com/userfiles/mimizanubinumapa.pdfIn PDF document text
- http://mu-rrrc.com/userfiles/file/14106072101.pdfIn PDF document text
- https://www.3dreamchurch.com/wp-content/plugins/super-forms/uploads/php/files/6f27f2b8d014df57f3c255acd66e8715/27614327111.pdfIn PDF document text
- https://vizzzio.ru/wp-content/plugins/super-forms/uploads/php/files/5dabae1cc641a1a3bef47e5c95c55a6d/66030455399.pdfIn PDF document text
- http://stelmart.ru/userfiles/file/81639617348.pdfIn PDF document text
- https://sikanderajam.com/Robinson/ckfinder/userfiles/files/22474654756.pdfIn PDF document text
- https://divetechmarine.com/contents/files/xulekuvatufawuf.pdfIn PDF document text
- http://sasmedm.com/www/js/ckfinder/userfiles/files/75924122300.pdfIn PDF document text
- https://www.geosuiteonline.de/wp-content/plugins/formcraft/file-upload/server/content/files/1612fbc3d1043e---faregorexutomiwofex.pdfIn PDF document text
- http://www.udelimpa.es/ckfinder/userfiles/files/80120000862.pdfIn PDF document text
- http://ntvietnga.com/upload/files/13201309348.pdfIn PDF document text
- http://xn--82cac8d3ajrc0gd0bo4a7nf3qg.com/userfiles/files/sojifomopebipiwemuzo.pdfIn PDF document text
- http://hzxf.com/images/upload/File/wesusura.pdfIn PDF document text
- http://evaemlak.com/userfiles/file///foxefag.pdfIn PDF document text
- http://dcbestwings.com/uploads/files/91301168424.pdfIn PDF document text
- http://clubmaniacr.com/campannas/file/73964142753.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=unblock+on+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_off0000ba18.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBA18 | 17892 bytes |
SHA-256: 3db6ed2be6d7156fbbd9b2d7c8254c4d8d7c1f57b640de499101c892e224d1f3 |
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font_01_sfnt_off0000e765.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE765 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000ff7c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF7C | 10204 bytes |
SHA-256: 7d1a0c4e5e7ca937113f04a042e9e681f90098b0358faa22c88614c8b3f02136 |
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