MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a large number of external URIs, many of which are part of a link farm on disposable hosting. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware via the embedded links. The embedded JavaScript is a common technique for exploiting PDF vulnerabilities or redirecting users.
Machine Learning
- Nyx PDF Classifier malicious score 0.9908
Heuristics 6
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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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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://pistant.ru/uplcv?utm_term=solving+trig+equations+with+sin+and+cos PDF link annotation
- http://cz-synergy.cz/data/file/62427760661.pdfIn PDF document text
- http://ballmillfactory.com/d/files/11431196471.pdfIn PDF document text
- http://sourceandsecure.com/uploads/userfiles/file/11891298642.pdfIn PDF document text
- https://landbondcorten.com/attachment/file/74649618c1a25291c9e8cc4aac96c742.pdfIn PDF document text
- http://moriefrusca.com/userfiles/files/tanotapejujisejefa.pdfIn PDF document text
- http://cps-mbstu.edu.bd/app/webroot/js/ckfinder/userfiles/files/49782147169.pdfIn PDF document text
- http://uptownchantilly.com/uploads/files/xesojadazuwabobazejukus.pdfIn PDF document text
- https://bepxuyenviet.com/upload/files/22087119946.pdfIn PDF document text
- http://harckocsik.hu/userfiles/file/76290424945.pdfIn PDF document text
- http://tugrabilgisayar.net/resimler/files/74206243939.pdfIn PDF document text
- https://vinatech.com/userfiles/file/1776663547.pdfIn PDF document text
- https://basisangka.com/contents/files/vedevifobopifejositegago.pdfIn PDF document text
- https://kvgrup.com.ua/wp-content/plugins/formcraft/file-upload/server/content/files/1614677804dfb4---diretakolupibifoguju.pdfIn PDF document text
- https://fultoys.com/userfiles/jitovif.pdfIn PDF document text
- http://robedecreateur.com/img/files/riketatajenuza.pdfIn PDF document text
- https://factorysales.com/userfiles/files/peluzekiwagokabolekosuti.pdfIn PDF document text
- http://smartmedicaleg.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d982ea97c8---8562187674.pdfIn PDF document text
- https://topconta.ro/userfiles/file/50977158945.pdfIn PDF document text
- http://timocomputer.cz/files/file/kamatituwuwixesetoz.pdfIn PDF document text
- https://giriconsultancy.com/content_files/files/99289024330.pdfIn PDF document text
- http://kochamsushi.pl/UserFiles/file/kutosupuxutekufovaravuso.pdfIn PDF document text
- http://imdad-egypt.com/userfiles/file/wadina.pdfIn PDF document text
- http://inimtrento.it/userfiles/files/xibilaluvomiribivizuveza.pdfIn PDF document text
- https://produktybhp.pl/pliki_user/File/69672829881.pdfIn PDF document text
- http://shipsupply.ru/userfiles/files/30820954984.pdfIn PDF document text
- http://darec.sk/files/files/85772022858.pdfIn PDF document text
- https://wfbulgaria.com/uploads/wysiwyg/files/lijemumirogowawozabok.pdfIn PDF document text
- 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_off0000bb73.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBB73 | 15672 bytes |
SHA-256: 3376337c0715b9a990eff859bab9a00190b76dee470a224c9e38cbb5b89c1313 |
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font_01_sfnt_off0000e3ba.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE3BA | 11124 bytes |
SHA-256: 4c421e97e71cd1c372df2f0938c922172b8b1efbe9c321d1e0a497c58cc60129 |
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font_02_sfnt_off0000fd2a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD2A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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