MALICIOUS
106
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF document contains heuristics indicating it's a link farm designed to redirect users, and specifically employs a browser extension installation lure. The ML classifier strongly flagged this PDF as malicious. While no scripts were directly extracted, the embedded URLs and the nature of the lure suggest a phishing or malware delivery attempt, likely involving JavaScript execution within the PDF to facilitate further compromise.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
Heuristics 5
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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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 https://synerhu.ru/uplcv?utm_term=recording+studio+mod+apk PDF link annotation
- https://nibrasimansch.com/userfiles/files/nusujavipagukomuxev.pdfIn PDF document text
- https://art4you.sk/editor_uploads/system/files/babaraxuri.pdfIn PDF document text
- http://wideanglepackaging.com/ckfinder/userfiles/files/44598017189.pdfIn PDF document text
- https://pacientes.quiroser.com/UserFilesQUI/file/ridomolovafekemoje.pdfIn PDF document text
- https://dancleland.com/img/upload/file/10646834954.pdfIn PDF document text
- https://loctra.net/userfiles/file/38367914387.pdfIn PDF document text
- http://gianenricofabro.com/userfiles/files/kejivume.pdfIn PDF document text
- https://ratodua.com/contents/files/76336482125.pdfIn PDF document text
- https://ww150003.linebot.net/upfile/files/20210910035802.pdfIn PDF document text
- http://noospc.ru/SITE/files/editor/file/43167293014.pdfIn PDF document text
- http://www.ville-dammarie.com/ckfinder/userfiles/files/91217860337.pdfIn PDF document text
- http://synthecinter.com/userfiles/files/21390240761.pdfIn PDF document text
- http://besttailor.info/ckfinder/userfiles/files/pogulajuved.pdfIn PDF document text
- https://doan295doson.vn/namthuan/images/news/files/89196266169.pdfIn PDF document text
- http://businessplan-capalpha.eu/mbp/upload/images/images/upload/ckfinder/71695843128.pdfIn PDF document text
- https://femagnet.com/upload/edu/article/file/kotifunaxajutowet.pdfIn PDF document text
- http://www.juniorcollege.cl/ckfinder/userfiles/files/riruzapomexix.pdfIn PDF document text
- http://ecole.ru/text/images/file/79254221831.pdfIn PDF document text
- https://gogreenonline.net/userfiles/image/fckeditor/file/gevoxopaniromeleraxedos.pdfIn PDF document text
- https://zahidnawaz.com/UploadedImages/image/depep.pdfIn PDF document text
- http://maulich.vn/attachment/files/99718907267.pdfIn PDF document text
- http://pscworld.eu/ckfinder/userfiles/files/5285117701.pdfIn PDF document text
- http://sabaparsian.com/ckeditor/files/files/78512190022.pdfIn PDF document text
- https://dolaodong.com/userfiles/file/69080860590.pdfIn PDF document text
- https://mytutr.com/wp-content/plugins/super-forms/uploads/php/files/c3fc99a0efa3baa66abbbec90d9487d2/48971840532.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_off0000ca21.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA21 | 20600 bytes |
SHA-256: 44778e0a3fd54f78fe7b8591608f99bf82294854b8cd9a53dbf782a865157e24 |
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font_01_sfnt_off000100bc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100BC | 11048 bytes |
SHA-256: 6c1151570e9e32a105e2bf2c2eece9dccaa345216441ad4c1266d6c7376a8e78 |
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font_02_sfnt_off00011a49.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A49 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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