MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains numerous external links, many of which point to compromised CMS upload directories, suggesting a phishing or malware distribution lure. The ML classifier and ClamAV detection strongly indicate malicious intent. The primary attack pattern involves directing users to potentially malicious external sites via a link farm.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://baoyi-chuck.com/ckfinder/userfiles/files/dinunewubakoregote.pdf In PDF document text
- https://medosojewellery.com/userfiles/files/xipobo.pdfIn PDF document text
- http://garantc.ru/userfiles/file/fevegur.pdfIn PDF document text
- http://wiskind.com/filespath/files/20210925015951.pdfIn PDF document text
- http://sin-hua.org/userfiles/zokeforafukipa.pdfIn PDF document text
- http://ohana1bbq.com/uploads/files/23984144950.pdfIn PDF document text
- https://clarkfamilybuilders.com/home/clark/public_html/ckfinder/userfiles/files/52318052102.pdfIn PDF document text
- http://sintellect.ru/Repository/file/baxunatelojomuwafukavi.pdfIn PDF document text
- https://a1-recruitment.fr/v2011/Files/fck_upload/file/viwevirolepari.pdfIn PDF document text
- https://itracmediav5.com/ckfinder/userfiles/files/41077394849.pdfIn PDF document text
- https://dorfadvertising.com/ckfinder/userfiles/files/73515307980.pdfIn PDF document text
- http://testplanet.nl/uploads/files/zojudedizesiwogam.pdfIn PDF document text
- http://kbo.pl/ckfinder/userfiles/files/52018947657.pdfIn PDF document text
- http://triple-a.co.th/ckfinder/userfiles/files/rafufudujunazobo.pdfIn PDF document text
- http://ptaki.info/imgekoprojekty/files/23327956213.pdfIn PDF document text
- http://graviroz.hu/ckfinder/userfiles/files/35313333642.pdfIn PDF document text
- http://dedanskecasinoer.dk/userfiles/file/8659243868.pdfIn PDF document text
- https://frontiermyanmar.com/sites/all/libraries/ckfinder/userfiles/files/58658789717.pdfIn PDF document text
- http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/16153bd1c3ebc0---59496960293.pdfIn PDF document text
- https://blugarden.eu/file/wojofijo.pdfIn PDF document text
- http://vzwsportenmuziek.com/content_docs/varubefipexika.pdfIn PDF document text
- http://sql110.com/pic/sanep.pdfIn PDF document text
- http://baharemadinah.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ca69443c9e---gepijidadisaniges.pdfIn PDF document text
- http://msci.com.ng/wp-content/plugins/formcraft/file-upload/server/content/files/161396d328b487---tidosofoseroj.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/fzgW7-mxBc0/uplcv?utm_term=the+truth+about+forever+read+onlinePDF 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://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_off0000b02e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB02E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c840.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC840 | 16456 bytes |
SHA-256: 0c0d15ac2f9215cac3d449a65e7eb493a5ce5a4479333dce89eaa783d81a234b |
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font_02_sfnt_off0000f260.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF260 | 10552 bytes |
SHA-256: 3e3bebe508797d81ebaa70d40295b910936debeab7d732b6ea8539cf681da9ee |
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