MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded URLs, many of which point to compromised websites or disposable hosting, indicating a link farm designed to redirect users. The ML classifier strongly flagged this PDF as malicious. While no scripts were directly extracted, the nature of the embedded links suggests a phishing or malware distribution attempt, likely initiated via spearphishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://inwebjor.ru/uplcv?utm_term=download+cake+learn+english PDF link annotation
- http://penzionnakrizankach.cz/ckfinder/userfiles/files/fulujerofivipafedopus.pdfIn PDF document text
- https://moulindelarroque.com/userfiles/file/vavifizugud.pdfIn PDF document text
- http://eyupsifalibitkiler.com/resimler/files/sujurevajozotitodododosel.pdfIn PDF document text
- https://soi.icami.mx/ckfinder/userfiles/files/vugupulosurimovesota.pdfIn PDF document text
- http://cornucopiafrederick.com/uploads/files/49455086635.pdfIn PDF document text
- http://www.virtualaid.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16147759d92c08---sofosuvawuva.pdfIn PDF document text
- https://gikguamerica.com/userfiles/file/zitowotixikofixodu.pdfIn PDF document text
- https://ibexquimica.com.br/ckfinder/userfiles/files/55875545358.pdfIn PDF document text
- https://hssanesteban.cl/files/27067332824.pdfIn PDF document text
- http://angarakshaksecurity.com/userfiles/file/14370232889.pdfIn PDF document text
- http://savvyais.com/userfiles/file/jujufasibanamizila.pdfIn PDF document text
- http://msnladyboy.com/ckfinder/userfiles/files/bugexenexege.pdfIn PDF document text
- https://fond.ru/userfiles/file/70993337897.pdfIn PDF document text
- https://sukienmiennam.com/userupload/files/75734891167.pdfIn PDF document text
- http://aibasylhet.edu.bd/app/webroot/ckfinder/userfiles/files/sokajenewijapawej.pdfIn PDF document text
- http://e-motyle.natura2000.pl/imgturysta/files/76193531978.pdfIn PDF document text
- http://avtrak.ru/ckfinder/userfiles/files/31324923579.pdfIn PDF document text
- https://sunsetlearningcenter.com/userfiles/file/24840432231.pdfIn PDF document text
- http://bodemveenweiden.nl/bodem-veenweiden-img/navoxikujesokexaseguzupe.pdfIn PDF document text
- https://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/161409024a3322---50576753090.pdfIn PDF document text
- http://chi-kara.net/Upload/files/12081071657.pdfIn PDF document text
- http://bellezaeimagen.com.mx/wp-content/plugins/formcraft/file-upload/server/content/files/1613825359a71a---77962262290.pdfIn PDF document text
- http://letsfinal.com/userfiles/file/xumiritadotemivijuwuju.pdfIn PDF document text
- http://st-ark.it/userfiles/files/55585286978.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_off0000b4a8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB4A8 | 10728 bytes |
SHA-256: aa53c28a749052405dd038c88c1106e69d6792ffeade8f92b6926292cd65e635 |
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font_01_sfnt_off0000cd0e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD0E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000e520.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE520 | 17660 bytes |
SHA-256: 8a5dfc928c9a8a04c5de8539dd7eb962b298271c6496ec600a12ebf080d5113a |
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