MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was identified as malicious by ML classifiers and ClamAV, indicating it likely contains malicious content. The heuristics reveal it functions as a link farm, pointing to numerous URLs hosted on compromised or disposable domains, suggesting an attempt to redirect users to phishing sites or download further malware. The presence of multiple external URIs and link farm indicators strongly supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9108
Heuristics 5
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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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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://korean-school.hu/hangul/userfiles/file/ribiwa.pdf In PDF document text
- https://cpsguffanti.com/uploads/file/57429484443.pdfIn PDF document text
- https://goldengrowers.com/wp-content/plugins/super-forms/uploads/php/files/0a605d5df469f8328e32c14e585fe98e/gumep.pdfIn PDF document text
- http://thevelascofamily.com/clients/11614/File/2196962822.pdfIn PDF document text
- https://icon-studios.com/userfiles/file/64064241208.pdfIn PDF document text
- http://hfengly.dk/skoleportalen/userfiles/file/14009819089.pdfIn PDF document text
- https://qamarapps.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f2be4b1871---36652158966.pdfIn PDF document text
- https://www.multilandtours.com/assets/ckfinder/userfiles/files/43079961632.pdfIn PDF document text
- https://daleel.global/wp-content/plugins/super-forms/uploads/php/files/8v3e0qbbvj86su2iuei54lhqom/mevizepa.pdfIn PDF document text
- http://beergolfers.com/blog/images/file/56865312597.pdfIn PDF document text
- http://bellezaeimagen.com.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160991548f13be---85185973288.pdfIn PDF document text
- http://heyumpnd.com/userfiles/file///44158699017.pdfIn PDF document text
- http://donleroy.net/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/tewituk.pdfIn PDF document text
- http://ophtalmic-overnight.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16080dfe210fcb---9936245487.pdfIn PDF document text
- https://lightupalife.org.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16086f37fd1b2b---95070333432.pdfIn PDF document text
- http://pickup-ws.com/userfiles/files/3790460195.pdfIn PDF document text
- http://amako-ra.com/wp-content/plugins/super-forms/uploads/php/files/0260f1b33f306d0ea172d23955bb09a1/62406249247.pdfIn PDF document text
- https://autosofortkauf.ch/wp-content/plugins/super-forms/uploads/php/files/tkt2gb6hiqtuioqf9gm626sdk8/99847807646.pdfIn PDF document text
- http://intechsol.kz/wp-content/plugins/formcraft/file-upload/server/content/files/16081ef6329270---58184861031.pdfIn PDF document text
- https://www.fmworks.com.tr/wp-content/plugins/super-forms/uploads/php/files/5tkuqckcoue8gdm7r2h6vie3ef/3055342453.pdfIn PDF document text
- http://www.yevres.fr/ckfinder/userfiles/files/11787735664.pdfIn PDF document text
- http://www.dnevi-sekretarjev.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1607329632a30f---xedomexigobidapo.pdfIn PDF document text
- http://suchanekstomatolog.pl/files/file/75281662003.pdfIn PDF document text
- https://tresonance.org/uploadfiles/28458279646.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=how+to+remove+comments+on+a+word+documentPDF link annotation
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 1
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000de9c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE9C | 17200 bytes |
SHA-256: 322ae44a09f9715bbd276d74cf69f7db0c2a03597f7ef92191288ade6666cf83 |
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