MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm and contains embedded JavaScript. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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 https://daulte.ch/ckfinder/userfiles/files/32326738137.pdf In PDF document text
- http://clearlakesd.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613673119174d---86786289080.pdfIn PDF document text
- https://triatlonshop.cz/userfiles/file/gukebobimirusamorodedavu.pdfIn PDF document text
- http://rainhouse.kr/data/editor/file/3654633826133ecd979463.pdfIn PDF document text
- http://skncn.com/u/files/zumavipikoxuzozeromu.pdfIn PDF document text
- http://ugrctrani.it/userfiles/files/61442820457.pdfIn PDF document text
- https://paulogomeslda.com/userfiles/file/liteposapup.pdfIn PDF document text
- http://classicalgardenornaments.com/uplds/file/20938406567.pdfIn PDF document text
- https://totalyoumovement.com/wp-content/plugins/formcraft/file-upload/server/content/files/161340d90a7930---difedaxewufitixesalap.pdfIn PDF document text
- http://gurukripapublicschool.com/userfiles/file/ligapasij.pdfIn PDF document text
- https://hanyauntuktesting.com/contents/files/julazuvizinumogeri.pdfIn PDF document text
- https://semagro-msw.ru/pics/images/file/sebawujosawere.pdfIn PDF document text
- https://nissanzorba.ro/ckeditor/ckfinder/userfiles/files/sekaxuvoz.pdfIn PDF document text
- http://didongsinhvien.com/upload/files/89049936484.pdfIn PDF document text
- http://godsownproperties.com/userfiles/file/62921826545.pdfIn PDF document text
- http://erainbowrealty.com/userfiles/file/605426985.pdfIn PDF document text
- http://factory-01.com/js/upload/files/44959968195.pdfIn PDF document text
- http://sangiorgioautoservizi.com/userfiles/files/vebubedarod.pdfIn PDF document text
- https://clubberia.com/js/ckfinder/userfiles/files/xisevi.pdfIn PDF document text
- https://remini.hu/userfiles/file/wupesikokojo.pdfIn PDF document text
- http://verynailscm.com/user_img/file/vejoluzaneza.pdfIn PDF document text
- http://ambulatorioveterinarioilghirlandaio.it/userfiles/files/nusiguwavopabutovogebepot.pdfIn PDF document text
- https://derey.nl/app/webroot/files/userfiles/files/kisaw.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=boba+emoji+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_off0000b238.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB238 | 14508 bytes |
SHA-256: e9b0bc437c1ae905f5df166d45ee8432df3984fbc571bd836e603802b9694c8e |
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font_01_sfnt_off0000d635.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD635 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000ee4c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE4C | 10420 bytes |
SHA-256: d38bab6e510010aed4186d56f99aef55a133330ebc1a56ad10e27b74db07659e |
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