MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm pointing to compromised WordPress uploads and disposable hosting, suggesting a phishing or SEO poisoning campaign. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of malicious redirection, likely to a phishing site or a download host.
Machine Learning
- Nyx PDF Classifier malicious score 0.8717
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://www.waetsukai.jp/system/ckfinder/userfiles/files/kisorivupugupabow.pdf In PDF document text
- https://bartonsteel.com/tony/barton/ckfinder/userfiles/files/guradidaxanesowine.pdfIn PDF document text
- http://uyaviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/161391c1808f30---75414267473.pdfIn PDF document text
- http://maekuangudomthara.com/ckfinder/userfiles/files/36360451643.pdfIn PDF document text
- http://pscworld.eu/ckfinder/userfiles/files/lipewekumakon.pdfIn PDF document text
- https://teplitsyoptom.ru/wp-content/plugins/super-forms/uploads/php/files/0b31cbb9b9e8a40de736d0154b3e3c44/99417316382.pdfIn PDF document text
- https://asiantms.com/ckfinder/userfiles/files/detor.pdfIn PDF document text
- http://thepvunamduong.com/media/ftp/file/98251005942.pdfIn PDF document text
- http://espokebar.com/uploads/files/gedopir.pdfIn PDF document text
- http://yushendesign.com/images_fck/file/1630894570.pdfIn PDF document text
- http://chemonova.com/FCKeditor/file/xusug.pdfIn PDF document text
- http://studiospazioambiente.it/userfiles/files/29345830619.pdfIn PDF document text
- https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/c5ee17112a072e860471eca34642063a/12096018265.pdfIn PDF document text
- https://www.kiemtoandongnghi.com/public/plugins/ckfinder/userfiles/files/kosiligamini.pdfIn PDF document text
- https://vasutaszeneiskola.hu/ckfinder/userfiles/files/fotexojel.pdfIn PDF document text
- http://radioevangilereal.com/assets/ckfinder/core/connector/php/uploads/files/wufajaxolekam.pdfIn PDF document text
- http://radioevangilereal.com/assets/ckfinder/core/connector/php/uploads/files/namogofawimoropesesefiw.pdfIn PDF document text
- http://protech.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/1613ac51cd18ad---malulonareraxopipiru.pdfIn PDF document text
- http://fongyoskert.hu/userfiles/files/36585694800.pdfIn PDF document text
- https://groupekineconcept.com/userfiles/file/39990781279.pdfIn PDF document text
- http://lapmaymn.samdigroup.vn/app/webroot/upload/files/52473198978.pdfIn PDF document text
- http://grupopiscis.com/upload/files/57596081795.pdfIn PDF document text
- https://annekienlen.fr/imagesfile/jopaxure.pdfIn PDF document text
- http://sahrugs.com/userfiles/file/56082300142.pdfIn PDF document text
- http://feedproxy.google.com/~r/Xvkpad/~3/vItLtdF7Pec/uplcv?utm_term=1999+prowler+travel+trailer+owners+manualPDF 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_off0000e575.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE575 | 10788 bytes |
SHA-256: ba8ca31fd063a393dad6b8705cf43a386b6b1359930f1212f93f0451e0802c49 |
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font_01_sfnt_off0000fe5e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE5E | 17008 bytes |
SHA-256: bf9be0c79ccf81d7b579f3268e20eb6f5715b485db21b910829b10fec30958f4 |
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