MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of links, many pointing to compromised WordPress sites and disposable hosting, indicating a link farm. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution. The embedded URLs and the heuristic findings of a link farm on disposable hosting support this conclusion.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://www.sir.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16094824984ce3---lurupid.pdf In PDF document text
- https://www.khaosanpools.org/ckfinder/userfiles/files/76246060170.pdfIn PDF document text
- https://vayamcs.com/content_files/files/12013514071.pdfIn PDF document text
- http://ipvoicenj.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d562ab27f8---xoras.pdfIn PDF document text
- http://deforma.it/userfiles/files/pokanewufevirufatok.pdfIn PDF document text
- http://mamnonkitty.com/webroot/img/posts/files/jidimemim.pdfIn PDF document text
- http://baschin-heizung.com/meineBilderAlbertGrundschule/file/38692309748.pdfIn PDF document text
- http://findmealocalpainter.com/insurazon/admin/userfiles/file/julasuwikasovos.pdfIn PDF document text
- http://ed-web.cz/userfilesfile/67339080353.pdfIn PDF document text
- http://dyglas.com/userData/board/file/japamizuraralir.pdfIn PDF document text
- https://hacunamatata.ru/wp-content/plugins/super-forms/uploads/php/files/fd1c756760ec424b0ec22eb362885b84/xejosizizoxinaje.pdfIn PDF document text
- https://www.heracles-hotel.eu/wp-content/plugins/super-forms/uploads/php/files/fl57sgp52ku7bg9m8icjqdcq82/nanizem.pdfIn PDF document text
- http://rgn2u.com/userfiles/files/58694693001.pdfIn PDF document text
- http://animationcoach.com/userfiles/file/jiwotedi.pdfIn PDF document text
- http://caribsplash.org/wp-content/plugins/formcraft/file-upload/server/content/files/160a4e09bc3468---rudijexon.pdfIn PDF document text
- http://thibangoto.com/app/webroot/uploads/files/lelimuserumifarogeluvofet.pdfIn PDF document text
- https://eliteswimmingpoolsinc.com/wp-content/plugins/super-forms/uploads/php/files/qvk840aco0gm3dt9sbr0r7k314/tidinatabupakesosoduxubub.pdfIn PDF document text
- https://www.generalutilities.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c6937b62915---mogomarelovexemibafo.pdfIn PDF document text
- http://ypperfect.com/ckfinder/userfiles/files/75276015014.pdfIn PDF document text
- http://coming-c.com/userfiles/file/19105534327.pdfIn PDF document text
- https://asiaviews.org/wp-content/plugins/super-forms/uploads/php/files/3ef9bk7jr1o8r5vfo7l9cdemk6/tumakuraxumipakutozow.pdfIn PDF document text
- http://festivaldeliteraturadepereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b24568c662d---lulotezezugidalajo.pdfIn PDF document text
- http://worksafeorg.com/wp-content/plugins/super-forms/uploads/php/files/aiom5gakj38lame3re677micc7/36133557471.pdfIn PDF document text
- http://blevy.com/ckfinder/userfiles/files/xarunasakegigamupod.pdfIn PDF document text
- https://clickkedai.com/userfiles/file/giduvazowuzi.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=class+8+science+book+chapter+7+question+answerPDF 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_off0000f6b8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF6B8 | 11324 bytes |
SHA-256: 0d631da879dab2b5acc9b14e4fa497815ac12df43ce1cebfce932e9c7293f3e7 |
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font_01_sfnt_off00011133.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11133 | 16428 bytes |
SHA-256: 06577e98a7a3c1a615ef4e116f871324602cc96a4c3d3a7ae61b7ce1b72546e7 |
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font_02_sfnt_off00013bab.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13BAB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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