MALICIOUS
162
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external links, many pointing to compromised WordPress sites or disposable hosting, indicating a phishing or malware distribution attempt. The ClamAV detection and ML classifier further support its malicious nature. The embedded JavaScript likely facilitates the redirection to these malicious URLs.
Machine Learning
- Nyx PDF Classifier malicious score 0.6822
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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 http://chieucoingason.vn/files/rusasolipukuxero.pdf In PDF document text
- http://enjoy.sk/editor_uploads/system/files/zuwumelakimabekugivi.pdfIn PDF document text
- http://costanzolegal.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/5734926911.pdfIn PDF document text
- http://www.sempresaude.net/wp-content/plugins/formcraft/file-upload/server/content/files/16088dfa28fd0b---4707196203.pdfIn PDF document text
- http://wsm.hk/images/uploadfiles/file/75930839908.pdfIn PDF document text
- https://westcoastmovers.ca/wp-content/plugins/super-forms/uploads/php/files/0ou8a8desjo4pisdrck4a0si3v/kegizikonove.pdfIn PDF document text
- http://www.sandzthabapanel.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1607bb0da5798d---vizifazobitutur.pdfIn PDF document text
- http://oiseau-bleu-morzine.com/userfiles/file/mubemasasukaz.pdfIn PDF document text
- https://www.ogblfrontaliers.fr/wp-content/plugins/super-forms/uploads/php/files/12vvn2o0vft9eqslld5refkpne/71148942920.pdfIn PDF document text
- http://vudafrique.com/wp-content/plugins/super-forms/uploads/php/files/87634c69497bd5eb58b6aef1cd92593a/50256091512.pdfIn PDF document text
- http://rethabise.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1608a9878b1069---77186636764.pdfIn PDF document text
- http://chizclean.ru/files/fck/file/tabuwavaf.pdfIn PDF document text
- http://ecohost.ru/pics/images/file/91039598064.pdfIn PDF document text
- https://ncfouting.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a654327429f---6848853727.pdfIn PDF document text
- http://ttccid.com/userfiles/files/xoruzaboliwi.pdfIn PDF document text
- http://doo-san.com/userfiles/file/20210730042940.pdfIn PDF document text
- https://ipcare.nl/wp-content/plugins/super-forms/uploads/php/files/pa000f4sigi1oj3jqgde1vc44o/86857694652.pdfIn PDF document text
- http://studiolaviano.it/userfiles/files/zabusu.pdfIn PDF document text
- https://getlovebooks.com/wp-content/plugins/super-forms/uploads/php/files/f7625b1a0794b1c2283fc6e092ca889d/kubonutovan.pdfIn PDF document text
- http://girc.ncue.edu.tw/ckfinder/ckfiles/files/79178059131.pdfIn PDF document text
- http://praguetransfer.com/files/file/letomokakojo.pdfIn PDF document text
- http://jnafarms.com/clients/864068/File/metojo.pdfIn PDF document text
- http://www.leads-bd.org/app/webroot/js/ckfinder/userfiles/files/luxojigepegi.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=dionisio+de+tracia+pdfPDF 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_off0000f66e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF66E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010e80.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E80 | 19932 bytes |
SHA-256: 81cf298062e76b993c6bece20739bae1141b3a4f9bcf99cd3692c207142b36dd |
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