MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of external links, many of which point to compromised WordPress upload directories or disposable hosting, indicating a link farm designed to distribute malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware delivery via these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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 http://veszpremkosar.hu/_user/file/wumovuvo.pdf In PDF document text
- http://traditionsradio.com/wp-content/plugins/super-forms/uploads/php/files/b02fcdae8514d890446ba94990f0955f/rupugetizud.pdfIn PDF document text
- https://www.modianodesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/161432853f25f3---mupepuxepifitis.pdfIn PDF document text
- http://khamranghaiphong.com/upload/files/61953374141.pdfIn PDF document text
- http://instalater-macecek.cz/klienti/devel/sneznerolby.cz/ckfinder/userfiles/files/gamekufel.pdfIn PDF document text
- https://ssmavidiyar.com/public/content-images/files/95221489648.pdfIn PDF document text
- http://fuguchair.com/upfolder/e/files/20210903064939.pdfIn PDF document text
- http://sictombbi.fr/ckfinder/userfiles/files/80317305255.pdfIn PDF document text
- https://postelezmasivu-praha.cz/ckfinder/userfiles/files/28445103042.pdfIn PDF document text
- http://maxbrio.kr/files/files/zobaxapatitom.pdfIn PDF document text
- https://www.vigo.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1615dcd37d72a1---nejozi.pdfIn PDF document text
- https://wsbe17hongkong.hk/_bin/ckfinder/userfiles/files/saxelevulomapalad.pdfIn PDF document text
- http://haiphongcontest.com/images/files/sojepixevineso.pdfIn PDF document text
- https://thomsonindia.com/userfiles/files/3620881475.pdfIn PDF document text
- https://parklanehotel.asia/userfiles/file/75562002479.pdfIn PDF document text
- http://lehnerkom.de/images/uploaded/file/79582000176.pdfIn PDF document text
- http://all-premium.com/user_file/files/pamikipez.pdfIn PDF document text
- https://polinagerz.ru/wp-content/plugins/super-forms/uploads/php/files/sikcdcfrae7g943is92tq43dgv/wokoxixamaseximuwed.pdfIn PDF document text
- https://pensionradvanice.cz/res/file/92771250097.pdfIn PDF document text
- https://sidexsideaudio.com/wp-content/plugins/formcraft/file-upload/server/content/files/16141909187c3b---xopime.pdfIn PDF document text
- http://szigmetal.hu/editor_up/4349727079.pdfIn PDF document text
- https://kachhiproperties.com/wp-content/plugins/super-forms/uploads/php/files/7e155637f1cd13e4baa4bc22a5737077/fugiserowumibavez.pdfIn PDF document text
- https://ustunbilgisayar.com/userfiles/files/bukimir.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=changing+pdf+into+wordPDF 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_off0000e76d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE76D | 18728 bytes |
SHA-256: 1a5158b8dc8cc895fc7fc04aeb932d21c27ef200ab66b6fe5ac9bd6805fe8e09 |
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font_01_sfnt_off0001184b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1184B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00013062.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13062 | 10548 bytes |
SHA-256: ada1b600a09f8f51f72521791dd5adf90c89c0a7a51f12a95628d0c2148c2037 |
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