MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and links to external PDFs hosted on numerous disposable domains, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to trick users into downloading further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://saimiri.name/upload/file/18138786914.pdf In PDF document text
- https://pfollowers.com/ci/userfiles/files/59532892367.pdfIn PDF document text
- http://altiro.nl/home/tjerk/file/molifig.pdfIn PDF document text
- http://nage-z.com/ckfinder/userfiles/files/zepiguzifakafefijun.pdfIn PDF document text
- http://climacom.eu/userfiles/files/29022589227.pdfIn PDF document text
- http://yujinpharma.com/upload/files/48965218137.pdfIn PDF document text
- http://visualpaint.com/wp-content/plugins/formcraft/file-upload/server/content/files/161336742b58ad---xuludisobijira.pdfIn PDF document text
- http://lucidarepavimentimarmogenovaealessandria.it/userfiles/files/63752413768.pdfIn PDF document text
- http://hightopeducation.com/cms_uploaded/file/26828271501.pdfIn PDF document text
- https://amigo-shop.105h.net/upload/files/rumamajamunasalexi.pdfIn PDF document text
- https://kitchensofdiablo.com/upload/file/35226015119.pdfIn PDF document text
- http://ventilyatsia-v-sochi.ru/ckfinder/userfiles/files/36852914891.pdfIn PDF document text
- http://myatkinsonfamily.com/userimages/62505922205.pdfIn PDF document text
- http://dakov.hu/_user/file/tifajipojonifelobomub.pdfIn PDF document text
- http://www.park-seversk.ru/other/js/ckfinder/userfiles/files/xepixenubiwuzabafemajater.pdfIn PDF document text
- http://www.saraviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131dc960fed0---45128058233.pdfIn PDF document text
- http://musik-fachberatung-neumarkt.de/images/uploadedimages/file/lazomepobegusotejerula.pdfIn PDF document text
- http://sm300159.agchost.com/userfiles/files/wutolebipitogofex.pdfIn PDF document text
- https://cqhuaan.myhost360.cn/upload/files/09-05-19-53-39-47.pdfIn PDF document text
- http://kfbma.org/files/fck/file/90621917338.pdfIn PDF document text
- http://kozelsk-adm.ru/files/uploads/files/fasagaruz.pdfIn PDF document text
- https://shidoremicrosys.com/media/13950177164.pdfIn PDF document text
- http://lsphc.com/userfiles/file///60143458631.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=good+objectives+for+lesson+plansPDF 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_off0000c035.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC035 | 10988 bytes |
SHA-256: c5184688c43f2d5fc940bbd061a185fb7c442ea74348465e526c619f8115a657 |
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font_01_sfnt_off0000d99e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD99E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f1b0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1B0 | 16580 bytes |
SHA-256: 0add2daa89987b865b69aed8cba97f702b7f08a920415632f95c60478664e888 |
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