MALICIOUS
132
Risk Score
Malware Insights
MITRE ATT&CK
T1059.007 JavaScript
T1566.001 Spearphishing Attachment
The sample contains embedded JavaScript, which is a common technique for executing malicious code within PDF documents. The PDF also features a link farm pointing to compromised WordPress upload storage and other disposable hosting, suggesting an attempt to redirect users to malicious sites. ClamAV detection as 'Pdf.Phishing.Trojan' further supports a malicious classification, likely for phishing or malware delivery.
Machine Learning
- Nyx PDF Classifier suspicious score 0.2639
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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://thunderstar.cn/userfiles/file/20210504105804862171781.pdf In PDF document text
- http://piemonteforyou.it/userfiles/file/29010654118.pdfIn PDF document text
- http://kurier48.pl/files/userfiles/file/xevesumizosujubozufoge.pdfIn PDF document text
- https://vongtaytramhuong.vn/upload/files/dobaviw.pdfIn PDF document text
- http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/16077bb62d6f93---lodokuniwivuxixiwarevopu.pdfIn PDF document text
- http://steclotildehorton.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160b5581c35758---sobikujatomisizi.pdfIn PDF document text
- https://editora-arara-azul.com.br/site/admin/ckfinder/userfiles/files/16207908168.pdfIn PDF document text
- http://budoprojekt.eu/obrazy/file/molojulodadam.pdfIn PDF document text
- http://confidenzacsapagy.hu/upload/69762829052.pdfIn PDF document text
- http://tiquital.com/documentos/file/funakitizurururanow.pdfIn PDF document text
- http://ankurgroups.com/userfiles/file/48705493830.pdfIn PDF document text
- https://www.bocamvigliesrooms.com/wp-content/plugins/super-forms/uploads/php/files/1df2798d618d9cdb750c5f9966a29ad4/rizabosufe.pdfIn PDF document text
- https://lawpropertyconsultants.co.uk/wp-content/plugins/super-forms/uploads/php/files/qeto3jjrun8ks7tgkqrnskq7l5/fumujipodemarixaleb.pdfIn PDF document text
- https://52fantasies.com/home/holly/public_html/ckfinder/userfiles/files/69767932985.pdfIn PDF document text
- http://iphysiology.ru/upload/gedoz.pdfIn PDF document text
- http://dmn.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160f0612467969---37899665066.pdfIn PDF document text
- http://stark-tools.ru/images/uploaded/20544736550.pdfIn PDF document text
- http://lexen.ca/userfiles/files/3847802684.pdfIn PDF document text
- http://hoaisonland.vn/upload/files/31431511208.pdfIn PDF document text
- http://nassagroup.org/app/webroot/js/ckfinder/userfiles/files/pubiluzuzizoduxaviwij.pdfIn PDF document text
- https://frennphotography.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608af3a022cbd---73141058935.pdfIn PDF document text
- http://salt17.com/userfiles/files/lorevuzokefovebukojudu.pdfIn PDF document text
- https://buddingheights.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607f5fbb33f49---20136245291.pdfIn PDF document text
- http://aloisiquadri.it/userfiles/files/33443620518.pdfIn PDF document text
- http://summitremodelinginc.com/userfiles/files/67972810947.pdfIn PDF document text
- http://esistore.be/userfiles/file/gidarivelemebavufelum.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=insertion+sequence+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_off0000d766.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD766 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ef7d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF7D | 10604 bytes |
SHA-256: c2ba860b690eda086f9ba473b505e6cb86e91f8919e8e89668f317da6aaacd4b |
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