MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of links, many of which point to compromised WordPress sites used for file uploads. This suggests the document is part of a link farm designed to host and distribute malicious content, likely through a spearphishing attachment. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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 http://anonelectronics.com/admin/fckeditor/editor/filemanager/connectors/php/upload_jpg/file/202104290530134278.pdf In PDF document text
- http://metallpress.ru/files/zukililikitujupog.pdfIn PDF document text
- https://e-lightingcontrols.com/wp-content/plugins/super-forms/uploads/php/files/5ce7d670bb846637ef2f2fc83a91ed67/vitikadefipedazoj.pdfIn PDF document text
- http://careerhack.net/wp-content/plugins/formcraft/file-upload/server/content/files/160a503f980ba3---53497423710.pdfIn PDF document text
- https://www.gs-gleichmann.de/wp-content/plugins/formcraft/file-upload/server/content/files/16089d478a7306---mevawojofijivuwilekobuwo.pdfIn PDF document text
- https://sckprime.com/wp-content/plugins/super-forms/uploads/php/files/9f68b52c8d88e7ee322beac56ee1d453/54074819024.pdfIn PDF document text
- https://kimtuong.vn/isc/public/files/fckupload/file/sizojefizimireg.pdfIn PDF document text
- http://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608076afc1f9d---59555202444.pdfIn PDF document text
- http://eventcompany.org/clients/e/e3/e30ef11cf4efe639fe6592aa37b9cb94/File/gamam.pdfIn PDF document text
- http://carefirstwalkathon.com/clients/8/89/89514deb4c0e8807eb046cac28c4977f/File/76081117444.pdfIn PDF document text
- http://lisahyatthealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b9dc74b3d34---kolanimutixenepux.pdfIn PDF document text
- https://aradmissions.com/ci/userfiles/files/balula.pdfIn PDF document text
- https://donnasalon.ru/wp-content/plugins/super-forms/uploads/php/files/4c7c36b2f9a3c48e9adcd9a62fac935d/zuravusokatuv.pdfIn PDF document text
- http://terapeutickemasaze.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16078aa7ed09d3---nunasojow.pdfIn PDF document text
- https://asiatravel.kg/wp-content/plugins/super-forms/uploads/php/files/0727348dad264a3b98e867092de87659/42043851717.pdfIn PDF document text
- http://bezagsecurity.cz/userfiles/96212753282.pdfIn PDF document text
- http://congluc.com/upload/files/mulolarijibopazemebuda.pdfIn PDF document text
- https://pasarangroup2.com/contents//files/vidomoxexodid.pdfIn PDF document text
- https://mosconi.net/userfiles/file/vekuriwir.pdfIn PDF document text
- http://officinedesign.it/userfiles/files/64111284066.pdfIn PDF document text
- https://anmoul.com/userfiles/file/18263855176.pdfIn PDF document text
- https://allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/defdea5b9ed9b3e276b47a5c86f2c037/xopewanudagolavej.pdfIn PDF document text
- https://www.alarisusallc.com/wp-content/plugins/super-forms/uploads/php/files/95353cf05bdc9bd0bab711492ba4932d/32136424236.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=above+and+below+worksheet+for+class+1PDF 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_off0000da6f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA6F | 16544 bytes |
SHA-256: ffd69553f5aaf1c888718a68195a9fb1c57ceb7290d27ddbcde859fb331f5d70 |
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font_01_sfnt_off0001058a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1058A | 10900 bytes |
SHA-256: 0232d0f13060e6b06c74efdbbdbc90a06efa879fc8f924eae40b3bb4c8d67a73 |
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font_02_sfnt_off00011eed.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11EED | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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