MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains a large number of embedded URLs, many of which point to disposable hosting or compromised CMS upload directories. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a deliberate attempt to create a link farm for SEO manipulation or to host malicious content. The ML classifier strongly flagged this PDF as malicious, suggesting it's part of a larger malicious infrastructure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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://synerhu.ru/uplcv?utm_term=onlyfans+hack+website+link PDF link annotation
- http://turinhotelcompany.com/userfiles/files/kujedukumaguzuneb.pdfIn PDF document text
- http://www.onlinenieuwsbriefversturen.nl/gebruikers/afbeeldingen/66141945273.pdfIn PDF document text
- https://strings97.hu/userfiles/file/luzezakifijomuw.pdfIn PDF document text
- http://boldogelet.hu/media/mamavukesafimededoxuxak.pdfIn PDF document text
- http://beloezoloto.ru/userfiles/file/vaturagubewuxorupafevazer.pdfIn PDF document text
- http://centreforeffectivecoaching.com/media/file/19325888623.pdfIn PDF document text
- http://cecev.com/stockages/files/48631512795.pdfIn PDF document text
- http://encino.ilovepokebar.com/uploads/files/pifaloremov.pdfIn PDF document text
- http://uspeh-kursk.ru/ckfinder/userfiles/files/bopodokufizakiwejiregom.pdfIn PDF document text
- https://lenaoyunlar.net/calisma2/files/uploads/12505945139.pdfIn PDF document text
- http://marisqueandopremios.com/campannas/file/nozamaxetaku.pdfIn PDF document text
- http://kennyre.com/wp-content/plugins/formcraft/file-upload/server/content/files/161316ada7b9e9---27125671264.pdfIn PDF document text
- https://tabularasa.lv/sites/tabularasa/uploads/documents/files/ginedorileku.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d6809acda1---saxovepulu.pdfIn PDF document text
- http://alicekhenrylawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/45517693442.pdfIn PDF document text
- http://coaching-scolaire.net/userfiles/file/xoxaxosi.pdfIn PDF document text
- https://www.delaneyllc.com/ckfinder/userfiles/files/42740023396.pdfIn PDF document text
- http://soluzionebenessere.eu/userfiles/files/guxazu.pdfIn PDF document text
- http://nerezove-kuchyne.cz/UserFiles/File/80899031716.pdfIn PDF document text
- https://eco-translation.ca/upload/editor/file/95145865950.pdfIn PDF document text
- http://shyjjc.com/v15/Upload/file/202192115839776.pdfIn PDF document text
- http://german-ex.com/images/blog/file/petitomiwuziwajadewiromo.pdfIn PDF document text
- https://www.creativetalentnetwork.com/ckfinder/userfiles/files/14920851634.pdfIn PDF document text
- http://www.yourhealthyourchoice.org/wp-content/plugins/formcraft/file-upload/server/content/files/161351af88f4ef---rojavivazewusalajupinivez.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_off0000cf25.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCF25 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e737.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE737 | 18020 bytes |
SHA-256: 8a5d0bc549643efd0ca4f0f0aaf5cd816d8578dfec5464176a66b7b2ff174d39 |
|||
font_02_sfnt_off00011622.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11622 | 10668 bytes |
SHA-256: 2dfd5d1d19e37d7ce5674140dabb17fe1ed613c8225714f1f4bc35b5d7229322 |
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