MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains a link farm pointing to multiple compromised WordPress upload directories, suggesting it's part of a phishing or malware distribution campaign. The presence of external URIs and link farms on potentially compromised CMS uploads strongly suggests an attempt to lure users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
Heuristics 7
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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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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.webtony.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16072bad1385e5---najebosure.pdf In PDF document text
- http://marinapogon.pl/upload/file/46593323489.pdfIn PDF document text
- https://limpjet.com.br/wp-content/plugins/super-forms/uploads/php/files/63752dd775bc5061c391b672bb5a6976/5221440710.pdfIn PDF document text
- https://specialbrands.gr/wp-content/plugins/super-forms/uploads/php/files/6135fc30c9050b15a12fb1c8d4f39866/99357149200.pdfIn PDF document text
- http://playfromhome.org/clients/4/49/49939bf6a151252ba1adfe53d1befa29/File/fazeg.pdfIn PDF document text
- http://botosani.ro/img/uploads/file/pakixebizafe.pdfIn PDF document text
- https://noks.cz/wp-content/plugins/formcraft/file-upload/server/content/files/160ae7f8056b35---wuneluxizolumufesalukonun.pdfIn PDF document text
- https://amiablediamonds.com/wp-content/plugins/super-forms/uploads/php/files/9a55e7c8f07e9c432b2eedc216a3cc85/75853054723.pdfIn PDF document text
- https://www.burit.net/wp-content/plugins/formcraft/file-upload/server/content/files/160c4a6699ebff---32862604781.pdfIn PDF document text
- http://arch-teh.com/pic/userfile/mugasonukilipituka.pdfIn PDF document text
- http://www.saraviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bb15b004ab8---55144756573.pdfIn PDF document text
- http://www.look4job.gr/images/_user_na/file/tirevefavavu.pdfIn PDF document text
- http://mygotour.com/FileData/ckfinder/files/20210603_6DED7BDCE78FFEC2.pdfIn PDF document text
- http://www.hptindia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160849c16f0539---27190492745.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=minecraft+mobestiary+pdf+espa%25C3%25B1olPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0001005e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1005E | 5760 bytes |
SHA-256: 5c6d08a1a233c9714df250eb253a0566307c68ce8485f6d0c8de37227d441b2a |
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font_01_sfnt_off000113a8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x113A8 | 13432 bytes |
SHA-256: 11d69eee42be4ff50c686e055393449992749cc377a81f66200ea6b086559c8c |
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