MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to potentially malicious content. The ML classifier strongly indicated maliciousness, and the presence of multiple external URI heuristics further supports this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 5
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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://chcial.ru/uplcv?utm_term=remote+control+your+pc+from+android PDF link annotation
- http://dok-vo.ru/userfiles/file/zuribubudimorij.pdfIn PDF document text
- http://laboratoriologos.it/userfiles/files/duvimikobeda.pdfIn PDF document text
- https://bednidhitraders.com/userfiles/file/zidapegavowubesu.pdfIn PDF document text
- http://eaupureinternational.com/userfiles/file/xujajugavamejemizulimur.pdfIn PDF document text
- http://tao-oita.com/admin/upload_filesfile/piled.pdfIn PDF document text
- http://kystop.com/wp-content/plugins/super-forms/uploads/php/files/81f1ebb1a588675a5aaa7d92cc1299bc/gobonimavegopi.pdfIn PDF document text
- http://studioarchperissinotto.eu/userfiles/files/89979452650.pdfIn PDF document text
- http://perchegouet.com/ckfinder/userfiles/files/2134243619.pdfIn PDF document text
- https://ddriu.hu/wp-content/plugins/super-forms/uploads/php/files/5159033000e0bbca293e6c2ada857fcd/32271538760.pdfIn PDF document text
- http://jamoncup.es/wp-content/plugins/formcraft/file-upload/server/content/files/16140c34a3aa97---22694715591.pdfIn PDF document text
- http://www.191seo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b8c3070889---184864037.pdfIn PDF document text
- http://aimecostruzioni.it/userfiles/files/71980228808.pdfIn PDF document text
- http://i-harmonics.com/upload/files/bufoxi.pdfIn PDF document text
- https://baxsporthorses.nl/userfiles/file/52468815656.pdfIn PDF document text
- https://nieruchomosciprzetargi.pl/files/file/72735921911.pdfIn PDF document text
- http://vallovin.it/userfiles/files/72894816392.pdfIn PDF document text
- http://olech-rzeszow.pl/userfiles/file/luremufobapepavilodopejal.pdfIn PDF document text
- http://huntland.hu/upload/file/wekaxutuvefa.pdfIn PDF document text
- https://namhunglogistic.vn/site/files/78471058658.pdfIn PDF document text
- http://nwatchonline.info/userfiles/file/vaxomonarenipuzib.pdfIn PDF document text
- http://hylimusic.com/fckeditor/editor/filemanager/connectors/php/userfiles/file/90622326192.pdfIn PDF document text
- https://12shio1.com/contents/files/ruxivuxeku.pdfIn PDF document text
- http://gtshotel.it/images/file/setoxilenasalira.pdfIn PDF document text
- http://hengtaixin.com/HangShun/ckfinder/userfiles/files/kukizekebaterasirekux.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_off0000e457.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE457 | 10872 bytes |
SHA-256: 1b9b6e99d1c273de8edaa4bcd176aa1362b062c0c3b8291e31560ba467fce3b7 |
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font_01_sfnt_off0000fd77.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD77 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011589.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11589 | 17892 bytes |
SHA-256: f9063fbe149d4f85f661337fbdab8d222c718d19d187f31a34e711e5b9fcf8de |
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