MALICIOUS
72
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains embedded JavaScript and a large number of external links, many pointing to compromised CMS uploads and disposable hosting. The primary link, 'https://smidgel.ru/uplcv?utm_term=karate+king+game+download', suggests a lure to download a file. The embedded JavaScript likely facilitates the execution of a downloaded payload or further redirection, contributing to a client execution attack.
Machine Learning
- Nyx PDF Classifier suspicious score 0.3497
Heuristics 5
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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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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://smidgel.ru/uplcv?utm_term=karate+king+game+download PDF link annotation
- http://cokhiminhhien.com/media/ftp/file/25041981579.pdfIn PDF document text
- http://ng-sons.com/userfiles/file/84946428244.pdfIn PDF document text
- http://naturpix.ch/cmsimages/file/45620128994.pdfIn PDF document text
- https://infotechsystemsonline.com/ital/www/img/file/14279724321.pdfIn PDF document text
- https://tattica.byespresso.com/app/webroot/files/upload/files/79885248129.pdfIn PDF document text
- https://www.rongoldmanlaw.com/system/js/back/ckfinder/userfiles/files/79246295697.pdfIn PDF document text
- http://self119.net/upload/userfiles/2021/09/files/210914175019.pdfIn PDF document text
- http://portaldeaquidauana.com.br/ckfinder/userfiles/files/65677142137.pdfIn PDF document text
- http://newo.ru/files/files/6638570602.pdfIn PDF document text
- http://brukikostka.pl/uploads/page/file/kewetepiratobogulasoduno.pdfIn PDF document text
- https://voicelux.ru/wp-content/plugins/super-forms/uploads/php/files/d1aa3dde735703231a285b645e427e33/vidowuku.pdfIn PDF document text
- http://akekaluck.com/ckfinder/userfiles/files/vozonaroronutomosobak.pdfIn PDF document text
- http://mkconline.com/landmark/ckfinder/userfiles/files/nanufesojuxono.pdfIn PDF document text
- http://maduraicaterers.com/app/webroot/js/ckfinder/userfiles/files/41692533522.pdfIn PDF document text
- http://gostium.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613fe562f14d6---8223829800.pdfIn PDF document text
- http://thesei.com/In PDF document text
- http://adoriantarla.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613f9fafb75ba---77060298063.pdfIn PDF document text
- http://ecohost.ru/pics/images/file/69124860752.pdfIn PDF document text
- http://novaserv.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613f09739a6e1---46206471782.pdfIn PDF document text
- http://colegiosantarosa.com/uploads/imagem/file/97341584160.pdfIn PDF document text
- http://resheto.ru/users_images/fck/file/midoxubekenosugawiruro.pdfIn PDF document text
- http://npas.ru/pic/file/63687458808.pdfIn PDF document text
- https://georeno.ca/userfiles/files/6690705982.pdfIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000ecc4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECC4 | 17772 bytes |
SHA-256: a7276a96cf68092a58c6b4d7aa79a075620a6c12592d62c8363651c4fb2e5b57 |
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font_01_sfnt_off00011a82.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A82 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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