MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a link farm pointing to multiple compromised CMS upload storage locations and disposable hosting, suggesting an attempt to distribute malicious content or phish users. The presence of external URIs and a link farm structure strongly suggests the document is designed to redirect users to potentially harmful websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9032
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://maketmaster.ru/admin/ckfinder/userfiles/files/42687437393.pdf In PDF document text
- http://webbuilders.com/files/file/99576057047.pdfIn PDF document text
- https://www.hotwaterfactory.com.au/wp-content/plugins/super-forms/uploads/php/files/887add19939bced055ec3483a15506ee/75674900685.pdfIn PDF document text
- https://www.darrellstuckey.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077cff33ae22---56656646453.pdfIn PDF document text
- https://vas-vill.hu/userfiles/file/18700103892.pdfIn PDF document text
- https://mimpishio1bet.net/contents//files/sujulizebisezowoko.pdfIn PDF document text
- http://uni-farm.pl/ckfinder/userfiles/files/resew.pdfIn PDF document text
- https://ladychief.com/wp-content/plugins/super-forms/uploads/php/files/be5ba36d14970461b17db1a34a0e8cc9/75724550438.pdfIn PDF document text
- https://miamiuniquelimo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c5f1a648638---94799284763.pdfIn PDF document text
- http://bougerpourstarlight.ca/clients/c/c6/c668404594a1c08d975ab50c7bec58f6/File/foxagavosuwevijewuxelelik.pdfIn PDF document text
- http://namkhoabacninh.com/images/files/xupenifigaw.pdfIn PDF document text
- https://gk-termopanel.ru/wp-content/plugins/super-forms/uploads/php/files/1db4345e105d0cce80efd0dda9b8a812/6309564760.pdfIn PDF document text
- http://www.hollyskauaicondo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f63694baf6---12667755583.pdfIn PDF document text
- https://www.reparaciondebomba.com.ar/wp-content/plugins/super-forms/uploads/php/files/4t4dhuf20pfet4okfor1a89s77/84950153007.pdfIn PDF document text
- https://larustt.com/upload/ckfinder/files/18740043969.pdfIn PDF document text
- https://www.eoluk.com/wp-content/plugins/super-forms/uploads/php/files/t78avk36185ov5r61ucgecuo5n/jawolejumedilewat.pdfIn PDF document text
- https://susta.vn/userfiles/file/petikebakegubivakexozog.pdfIn PDF document text
- http://www.qookspot.kitchen/wp-content/plugins/formcraft/file-upload/server/content/files/160a4649d5b5b7---vamekudoz.pdfIn PDF document text
- http://ugrctrani.it/userfiles/files/46218042875.pdfIn PDF document text
- http://24horasnoar.com.br/ckfinder/userfiles/files/50772312213.pdfIn PDF document text
- http://pavcargo.ru/wp-content/plugins/super-forms/uploads/php/files/1c4fbec2f2d515944c16e8910ec2223b/gilesunirekas.pdfIn PDF document text
- http://esipro.fr/userfiles/file/2959648820.pdfIn PDF document text
- http://bagpack.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/16083a3239e4f9---60308529947.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=cathy+caruth+unclaimed+experiencePDF 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_off0000e815.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE815 | 10840 bytes |
SHA-256: 3ddfd13edbf09cc00af16062caf82355f6947fa7c3eb8b524489ffa5fc402f9d |
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