MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The ML classifier and ClamAV detection strongly indicate malicious intent. The PDF contains numerous external links, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users. The presence of embedded URLs and the PDF_SEO_DISPOSABLE_LINK_FARM heuristic further support this, indicating the document's primary purpose is to funnel users to potentially malicious external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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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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 https://garglob.ru/uplcv?utm_term=the+salinity+of+estuary+water+is PDF link annotation
- http://inphuduong.vn/upload/files/kitugogibideraligixubo.pdfIn PDF document text
- https://zakarpattya-tour.com/upload/bivufanima.pdfIn PDF document text
- http://asckhn.com/acskhn/userfiles/file/1880139617.pdfIn PDF document text
- http://csc020.com/userfiles/file/20210908175538_g9ld0r.pdfIn PDF document text
- http://studiogallerani.it/userfiles/files/10421547299.pdfIn PDF document text
- http://sapientgenerator.ru/files/userfiles/files/78954082457.pdfIn PDF document text
- https://caribemed.com/userfiles/file/voloxebigutaxalejojiz.pdfIn PDF document text
- http://iccarrentals.com/files/file/xemufesuterilo.pdfIn PDF document text
- http://retrolondontees.com/userfiles/file/36231184530.pdfIn PDF document text
- http://www.primalegal.eu/wp-content/plugins/super-forms/uploads/php/files/duoarqe24ad1ibumbbjfoj1sj7/forurasegebenu.pdfIn PDF document text
- https://shirbandifelt.com/userfiles/file/10104049908.pdfIn PDF document text
- https://www.fmworks.com.tr/wp-content/plugins/super-forms/uploads/php/files/a16g7cnd5j81f1lo220oaqa0rn/zulesodiwenenabom.pdfIn PDF document text
- https://lp-tracking.com/userfiles/file/1851845125.pdfIn PDF document text
- http://anipetkingdom.com/webroot/img/files/47160520202.pdfIn PDF document text
- https://casabresciani.it/uploads/file/pesoferegujesawef.pdfIn PDF document text
- http://tunesistudio.eu/userfiles/files/70823594389.pdfIn PDF document text
- http://giasuthanhdat.vn/Images_upload/files/lotesef.pdfIn PDF document text
- http://polenes.cl/userfiles/file/55508059024.pdfIn PDF document text
- http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/161404368dc483---77802425015.pdfIn PDF document text
- https://fieldofgreen.com/wp-content/plugins/super-forms/uploads/php/files/5e1851159eb08f386754cb1da5e25ee1/52230184309.pdfIn PDF document text
- http://laclonghotel.vn/upload/files/fujor.pdfIn PDF document text
- 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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d392.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD392 | 10572 bytes |
SHA-256: ac21cb227de620c2ad2b3b84275fcb836fdbb6c37d3b54cb03f1ca74c067cabb |
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font_01_sfnt_off0000ebbf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEBBF | 18484 bytes |
SHA-256: 0111c8d6c5e7a6129e2bb8c179bd790bb2915ed95810f79c53e2d196daf82276 |
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font_02_sfnt_off00011b9a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B9A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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