MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics identified it as a link farm pointing to compromised CMS uploads and disposable hosting, suggesting a phishing or malware distribution scheme. The embedded URLs are likely used to redirect users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9822
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://medvor.ru/uplcv?utm_term=can+you+use+two+footnotes+in+one+sentence PDF link annotation
- http://hangquangauto.com/files/lajanimovasobapatagikav.pdfIn PDF document text
- https://expomediainc.com/upload/file/57064297325.pdfIn PDF document text
- https://typeone.com.my/ckfinder/userfiles/files/ranevovejinavowuxufe.pdfIn PDF document text
- https://nationalshield-uae.com/userfiles/files/maguwazipadonudoturewu.pdfIn PDF document text
- https://realimpacto.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16141d7a035fb6---6918117468.pdfIn PDF document text
- http://ossokahve.com/upload/file/74142691478.pdfIn PDF document text
- https://tomorrowhubs.com/upload/users/files/6981464203.pdfIn PDF document text
- http://asirius.su/wp-content/plugins/super-forms/uploads/php/files/53b79c54879d7e0ec04baefa5aee3690/nukepijajanikasit.pdfIn PDF document text
- https://www.histoiresdegroupes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614c9cd1852b9---zewibotone.pdfIn PDF document text
- http://elosc.com/upFile/file///ITX202109091204274061.pdfIn PDF document text
- http://giasuthienphuc.com/Images_upload/files/jawojodawib.pdfIn PDF document text
- http://hysansam.com/fckeditor/userfiles/image/zuvonubono.pdfIn PDF document text
- https://ltes.tw-goods.com/UserFiles/files/labusugipi.pdfIn PDF document text
- https://husvagnsexpo.se/wp-content/plugins/formcraft/file-upload/server/content/files/16168ae09c692f---2797005697.pdfIn PDF document text
- http://www.garriagricola.com/wp-content/plugins/formcraft/file-upload/server/content/files/1615c41a7e1dd5---gotonebijosutexexoler.pdfIn PDF document text
- http://carszana.com/image/upload/File/70509384552.pdfIn PDF document text
- http://deauville.ru/files/file/51695328173.pdfIn PDF document text
- http://gyermekhaz.hu/Content/site_images/files/54152062773.pdfIn PDF document text
- http://dieta-plus.pl/userfiles/file/82650753281.pdfIn PDF document text
- https://mebelihome.ru/upload_picture/tumubojanagokavuvesusu.pdfIn PDF document text
- https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/16146d21e00f4c---tijenobilewexewobe.pdfIn PDF document text
- http://mebel-moscow.com/content/xuploadimages/file/vuzedoferopudijadokas.pdfIn PDF document text
- https://biholka.cz/uploades/userfiles/file/46885037822.pdfIn PDF document text
- http://online-cycling.com/files/file/95894748280.pdfIn PDF document text
- http://cohn-vossen.com/wp-content/plugins/formcraft/file-upload/server/content/files/16166126cd0e98---79377755360.pdfIn PDF document text
- https://ksi-system.pl/editorfiles/file/gijupitemudikit.pdfIn PDF document text
- http://thefutureofgolf.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1614b0fe7d37c5---lanedukubafosuzanomase.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_off0000f72e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF72E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010f40.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F40 | 19156 bytes |
SHA-256: 5d164668bb0d1c9bd64a5a90cdd825a0e022787f6aa8211adfe53091ef890c7e |
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font_02_sfnt_off000141d3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x141D3 | 10512 bytes |
SHA-256: c0d3ce345ede389d4402801841f06044b1df88cd7bd96b978cdabfbc221f3ce4 |
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