MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The ML classifier and ClamAV detection strongly indicate this PDF is malicious. It contains numerous links to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of embedded URLs and the nature of the heuristics point towards a phishing or malware distribution scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9968
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://pistant.ru/uplcv?utm_term=soft+high+pitched+sound PDF link annotation
- http://www.justgiveahand.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a38de7827e3---47515348863.pdfIn PDF document text
- http://mentor-tutor.com/newGroserLikeProject/uploads/files/30602986371.pdfIn PDF document text
- https://gresathouse.com/wp-content/plugins/super-forms/uploads/php/files/cca17182f8ecc5f9bdd75c8acd252061/ruwigedategupebalotaxe.pdfIn PDF document text
- http://comicpapyrus.com/wp-content/plugins/super-forms/uploads/php/files/e2b81343646208273fabb020687f7f08/27280506034.pdfIn PDF document text
- https://spencershaulageltd.co.uk/wp-content/plugins/super-forms/uploads/php/files/d93fb8eee525cbd005310ad2319b925c/54895016147.pdfIn PDF document text
- https://oneremote.ru/wp-content/plugins/super-forms/uploads/php/files/0fc82190ed805775a2d7ec1511e9dc45/20374601327.pdfIn PDF document text
- http://marcobernini.it/userfiles/files/moweluruxilekoreriwafara.pdfIn PDF document text
- https://wickedcheesy.com/images/file/tegebujelesoma.pdfIn PDF document text
- http://clingac.com/d/files/76127793917.pdfIn PDF document text
- https://panoramabyty.cz/content/runokevinewirokitetipari.pdfIn PDF document text
- http://vimar.ua/userfiles/files/33964974721.pdfIn PDF document text
- https://hcs1000.org/wp-content/plugins/super-forms/uploads/php/files/3f273fb5e2b94bcf3d3a81a924cd376c/58780998347.pdfIn PDF document text
- https://solener.info/ckfinder/userfiles/files/komifem.pdfIn PDF document text
- https://people11people.gr/uploads/File/37400008300.pdfIn PDF document text
- http://verkoop-je-wagen.be/wp-content/plugins/formcraft/file-upload/server/content/files/1606ea0df60e64---musewugozifaxa.pdfIn PDF document text
- https://angkortaxiservice.com/userfiles/file/96990863396.pdfIn PDF document text
- https://contabil-fiscal.ro/mm/file/fasava.pdfIn PDF document text
- http://zonweringnederland.com/ckfinder/userfiles/files/xipufada.pdfIn PDF document text
- http://tara77.com/clients/46590/File/33913452083.pdfIn PDF document text
- http://amwordpress.org/wp-content/plugins/formcraft/file-upload/server/content/files/16085865fdd48d---vefijo.pdfIn PDF document text
- https://grandegroup.net/files/ruzivulogulazegis.pdfIn PDF document text
- http://tpdw.pl/userfiles/file/regelopubijitekap.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_off0000d7a7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7A7 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000efbe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFBE | 10768 bytes |
SHA-256: 302d206627545ea534ed10111ed956f42d326e19208c92565f960bb1bccd22ae |
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font_02_sfnt_off00010844.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10844 | 16632 bytes |
SHA-256: 8e8706c8825ebaa3dfb1eb8d73e9ccc0a8e19895d668829a47f3018e7f5c0b38 |
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