MALICIOUS
102
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample is a PDF file containing embedded JavaScript, which is a common technique for exploiting PDF vulnerabilities or delivering malicious content. The heuristics indicate that the PDF hosts a link farm pointing to compromised WordPress upload storage, suggesting an attempt to redirect users to malicious sites. The ML classifier also flagged this PDF as malicious, increasing confidence in its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.7217
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://singaporeroadshow.com/wp-content/plugins/super-forms/uploads/php/files/b6da7136ca1f9dfd1e21423315238e6e/raxedamabew.pdf In PDF document text
- http://arisutour.com/ckupload/files/57013366190.pdfIn PDF document text
- http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1610cd72eba91c---sixeropotidise.pdfIn PDF document text
- http://bolt.fo/public_html/userfiles/files/padubotevutekuli.pdfIn PDF document text
- https://brusroom.com/wp-content/plugins/super-forms/uploads/php/files/5f60f849e6080a4621152e711c06a78f/85450776036.pdfIn PDF document text
- https://atrax.hr/files/44345774115.pdfIn PDF document text
- http://parentini.it/userfiles/files/rixigoxapirifotovonago.pdfIn PDF document text
- http://cameralehiep.com/hinhanh_fckeditor/file/gisepetojezadodisava.pdfIn PDF document text
- http://www.contectrade.hu/fckfiles/file/38798288410.pdfIn PDF document text
- http://meteosputnik.ru/userfiles/file/45749097124.pdfIn PDF document text
- https://renfrewareahealthvillage.ca/ckfinder/userfiles/files/rudagojekoxep.pdfIn PDF document text
- http://www.pianoszimmermann.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a91f11032ea---fekowiki.pdfIn PDF document text
- https://xanbiente.de/userfiles/file/bajorodovefomitodo.pdfIn PDF document text
- http://avandcie-automation.fr/ckfinder/userfiles/files/3166160036.pdfIn PDF document text
- https://massagetheory.ca/wp-content/plugins/super-forms/uploads/php/files/7143b68c1f0ae97bc6a5c46900117107/tevojepuramixenup.pdfIn PDF document text
- http://motoren-adachi.com/js/upload/files/foxarewakenujerixenawug.pdfIn PDF document text
- http://ahdongjiu.com/upload_fck/file/2021-7-14/20210714054336344019.pdfIn PDF document text
- http://gramercy-grand.ru/files/file/84779318076.pdfIn PDF document text
- https://askopenko.com/wp-content/plugins/super-forms/uploads/php/files/93245bb83d6d03a32a963743fab8cc4d/dagaboruvosotozu.pdfIn PDF document text
- https://bwawarszawa.pl/upload/file/20101924402.pdfIn PDF document text
- https://asigurareingermania.ro/wp-content/plugins/super-forms/uploads/php/files/tbb8v52ckun0ls0hqgevsaru9o/giridoderud.pdfIn PDF document text
- http://prodottoitalia.eu/userfiles/files/kilevutogawolupewilopu.pdfIn PDF document text
- http://cicm2015.mist.ac.bd/app/webroot/ckfinder/userfiles/files/kixuvoxusafi.pdfIn PDF document text
- https://tootooair.com/FileData/ckfinder/files/20210704_6590034CE1B3F38E.pdfIn PDF document text
- https://lakecountyoralsurgery.com/wp-content/plugins/formcraft/file-upload/server/content/files/16078d66a8df10---34512538278.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=is+shl+test+difficultPDF link annotation
- 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_off0000eeb4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEEB4 | 16480 bytes |
SHA-256: 1bd4712878476661117240aefa3f0a18a4c2a94acba20342c2c586a8362ac8a2 |
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font_01_sfnt_off00011940.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11940 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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