MALICIOUS
82
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file contains embedded JavaScript and multiple external URLs, including one identified as a link farm on disposable hosting. The presence of a 'download button' heuristic further suggests a malicious workflow aimed at tricking the user into downloading a payload. The ML classifier strongly indicates maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 6
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://inwebjor.ru/uplcv?utm_term=apk+nba+2k+mobile PDF link annotation
- https://bokaichenyu.com/upload/files/lizebezopumenezumijedipo.pdfIn PDF document text
- https://xedulichhaiphong.vn/images/news/files/52041442936.pdfIn PDF document text
- https://360clothing.indicsys.com/home/www360cl/public_html/uploads/images/files/xufapafu.pdfIn PDF document text
- https://www.pessin-location.fr/ckfinder/userfiles/files/8052723035.pdfIn PDF document text
- http://toroisg.com/public/images/files/94678582182.pdfIn PDF document text
- http://zoo-foto.cz/userfiles/file/3030855929.pdfIn PDF document text
- http://topbondtape.com/uploadss/file/49832802522.pdfIn PDF document text
- https://deltarealestate-eg.com/userfiles/file/6707595639.pdfIn PDF document text
- https://chulintemple.house-well.com/CKEdit/upload/files/26341019467.pdfIn PDF document text
- http://tmacfashion.com/ckfinder/userfiles/files/fifemuwefekenikixozikutis.pdfIn PDF document text
- http://huyndaicaudien.com/upload/files/76075804205.pdfIn PDF document text
- https://irepairplus.nl/app/webroot/files/userfiles/files/fowixulopulidivavakekas.pdfIn PDF document text
- http://lighthouse-connection.at/myPix/file/33585251694.pdfIn PDF document text
- http://koreadramatour.com/FileData/ckfinder/files/20210914_42C4C49F66ED00EA.pdfIn PDF document text
- http://hykylalumni.org/userfiles/fidoxukagafuboninulopovez.pdfIn PDF document text
- http://nuocmambason.com/upload/fckimagesfile/1aa56082a6624285f7344eb7da1d2c4f.pdfIn PDF document text
- http://sewakendragroup.com/userfiles/file/61716281952.pdfIn PDF document text
- http://ahnil.com/userData/board/file/sevobozemobefevotirexi.pdfIn PDF document text
- http://vivaibonomo.it/userfiles/files/bulav.pdfIn PDF document text
- https://www.zaantraining.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613859f5cb176---kaxofedizulatukaxasiw.pdfIn PDF document text
- https://moraure.net/js/ckfinder/userfiles/files/losujaxumunu.pdfIn PDF document text
- https://www.lesson-online.org/wp-content/plugins/super-forms/uploads/php/files/cc8vmcu0k8mqgdqmiiomi3cij5/pikasagixoj.pdfIn PDF document text
- http://nexxosrealty.com/userfiles/files/2036420164.pdfIn PDF document text
- https://www.sterlingsez.com/ckfinder/userfiles/files/jetifemapulawok.pdfIn PDF document text
- http://csc-028.com/userfiles/file/20210911234934_zuxigs.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_off0000dced.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCED | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f4ff.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4FF | 19016 bytes |
SHA-256: b0554dcf2a9f4d9b36e11fa0c13441f3c54caf9d3cb3d85b3c4742b8739861ce |
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font_02_sfnt_off000126e2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x126E2 | 10380 bytes |
SHA-256: 2000a91eaa3bbe440d97d2147a2e87227688ae284006a304835a8b8914252e97 |
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