MALICIOUS
104
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document contains embedded JavaScript and a link farm pointing to multiple external URLs, some hosted on compromised WordPress sites. The ML classifier strongly indicates maliciousness. The primary attack pattern appears to be a lure to a link farm, likely intended to redirect users to malicious content or phishing pages.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
Heuristics 6
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://www.jacenter.org/js/ckfinder/userfiles/files/sibowemuditote.pdf In PDF document text
- http://fiorenzuolatrack.it/userfiles/files/dadudurade.pdfIn PDF document text
- https://ddc-touggourt.dz/ar/files/14704339601.pdfIn PDF document text
- http://serendipityorlando.com/wp-content/plugins/formcraft/file-upload/server/content/files/161370261d6b9c---gamabegop.pdfIn PDF document text
- https://dynasty888.com/image/files/20210924_024318.pdfIn PDF document text
- http://hrjok.com/uploadfile/file/82582935929.pdfIn PDF document text
- https://thietbivesinhsonhoa.com/webroot/img/files/34032587554.pdfIn PDF document text
- https://mandaljeebanking.in/ckfinder/userfiles/files/59848082821.pdfIn PDF document text
- http://rujiahk.com/uploadfiles/file/91660449014.pdfIn PDF document text
- http://lotusromeo.fr/app/webroot/files/userfiles/files/mibur.pdfIn PDF document text
- https://rlmahtani.com/userfiles/files/nutojitikoluketepapuva.pdfIn PDF document text
- http://www.srijonihealinghome.com/fckimages/file/sudogixamutofes.pdfIn PDF document text
- https://www.karenlovelee.com/wp-content/plugins/formcraft/file-upload/server/content/files/161373a8139612---58213287366.pdfIn PDF document text
- https://a-1commercialkitchenservices.com/ckfinder/userfiles/files/fegeromaludafebobuf.pdfIn PDF document text
- http://artkulinaria.pl/sites/default/files/file/peluxukunumodovu.pdfIn PDF document text
- https://jooli.ru/ckfinder/userfiles/files/muzivegiwa.pdfIn PDF document text
- http://labonguyenhoang.com/img-chamthi/files/65823867968.pdfIn PDF document text
- https://www.puskinas.lt/ckfinder/userfiles/files/64938595399.pdfIn PDF document text
- http://www.zav-mito.si/wp-content/plugins/formcraft/file-upload/server/content/files/1614167d18a9a7---24181007885.pdfIn PDF document text
- http://087334211.kad.tw/kads/ckfinder/userfiles/files/komemurewomonudoz.pdfIn PDF document text
- https://27061010.com/uploads/files/202109100749127348.pdfIn PDF document text
- https://vietrocknet.org/app/webroot/img/files/nemiva.pdfIn PDF document text
- http://nhactheducthammy.com/upload/files/papifaxag.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=install+chrome+os+on+windows+pcPDF 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_off0000b083.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB083 | 10816 bytes |
SHA-256: 6bfdb300dcaf2cfeb135e791d03f2b1fec7c6abf51c0f616e126b9fb5f38fb0a |
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font_01_sfnt_off0000c951.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC951 | 16908 bytes |
SHA-256: 403ac685da4140ed3b05867bde868c9ea24d9517b639c0aa12daf6f082a1500c |
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font_02_sfnt_off0000f504.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF504 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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