MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links, many pointing to compromised CMS uploads or disposable hosting, characteristic of a link farm designed to distribute malicious content or phish users. The document body is unreadable, but the heuristics and URLs strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
Heuristics 6
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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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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.guus.edu.mn/ckfinder/userfiles/files/posevugutiwivuzorol.pdf In PDF document text
- https://billionbosses.com/ckfinder/userfiles/files/xovevowexipuxetij.pdfIn PDF document text
- http://kino-cosmik.ru/sadm_files/56119380765.pdfIn PDF document text
- http://www.nuricomuvakfi.org/wp-content/plugins/super-forms/uploads/php/files/aff579k62e7luit791nqvu8mt4/fekigupedifusosirofewe.pdfIn PDF document text
- https://cosmopolitanhotel.eu/uploads/wysiwyg/files/19669472008.pdfIn PDF document text
- http://showplus.ae/userfiles/files/bakevumasosiduritupot.pdfIn PDF document text
- http://pivotal-technologies.com/userfiles/file/15998848132.pdfIn PDF document text
- https://www.ebenisterie-burette.com/ckfinder/userfiles/files/80708605503.pdfIn PDF document text
- https://40parables.com/wp-content/plugins/super-forms/uploads/php/files/1fafc12430735519327efe541a6e0360/reroki.pdfIn PDF document text
- http://www.superior-inkjet.com/login/ckfinder/userfiles/files/23733520734.pdfIn PDF document text
- https://brokenspoke.com/wp-content/plugins/super-forms/uploads/php/files/8779fe0910942f59c7f78e5b3ceaad93/tewuwoduto.pdfIn PDF document text
- http://naphogacomposite.com/upload/files/xupiwimewedezadalipu.pdfIn PDF document text
- https://dottoridegregorio.it/public/file/ditosorojekiwiwuki.pdfIn PDF document text
- http://xutricolor.com/uploadfile/files/netewafis.pdfIn PDF document text
- http://ttlh.vn/storage/ckfinder/files/27015128407.pdfIn PDF document text
- https://imapcb.org/wp-content/plugins/super-forms/uploads/php/files/979e0c1d59b92df74e2d58623db9aaa2/10085025341.pdfIn PDF document text
- https://matao.ro/app/webroot/files/userfiles/files/94441258091.pdfIn PDF document text
- http://autovoda.ru/upload/files/28865891484.pdfIn PDF document text
- https://www.hkfew.org.hk/ckfinder/userfiles/files/55114267677.pdfIn PDF document text
- http://hrzservices.com/uploadfiles/file/57400996806.pdfIn PDF document text
- http://musicpark-live.com/userfiles/file/57345867956.pdfIn PDF document text
- http://stringquartet.biz/web/images/fck/file/20076044401.pdfIn PDF document text
- https://satesayap.com/contents/files/49504462004.pdfIn PDF document text
- http://feedproxy.google.com/~r/MbOu/~3/cmwvf4RlXg4/uplcv?utm_term=sketching+exponential+graphs+worksheetPDF 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_off0000bbd3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBBD3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d3e5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD3E5 | 16888 bytes |
SHA-256: 685f7790d79020920ccb41e9032b6542b3c6c9a4220ecb7bf200c5d3e2e7a6a4 |
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font_02_sfnt_off0000ffb8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFB8 | 11008 bytes |
SHA-256: 06e61f21edba2ac2a23252e3035813bbc8c9aa5b07bd7f3491c5965e25c78631 |
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