MALICIOUS
104
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a significant number of external URIs, many of which point to compromised WordPress sites utilizing formcraft plugins for file uploads. This suggests the document is part of a campaign to host and distribute malicious files or redirect users to phishing pages. The ML classifier strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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 https://gpagroup.in/wp-content/plugins/formcraft/file-upload/server/content/files/1613284543dc1e---bipoz.pdf In PDF document text
- http://www.leads-bd.org/app/webroot/js/ckfinder/userfiles/files/2098482721.pdfIn PDF document text
- https://gres-k.cat/userfiles/file/vopokunopegepuwoxozikukif.pdfIn PDF document text
- http://www.acefence.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613faa056f5cd---rasavumubekupuredokif.pdfIn PDF document text
- http://grossbuch.com/upload/file/60591331718.pdfIn PDF document text
- http://ch-bovi.com/upload/files/guzabuvivifetekulisuv.pdfIn PDF document text
- https://chowdhurytourism.com/ckfinder/userfiles/files/dofovivom.pdfIn PDF document text
- https://toppelletmachine.com/d/files/nidaxojupeguzed.pdfIn PDF document text
- http://kk-gorenjska.si/uporabnik/file/moweluduwapu.pdfIn PDF document text
- https://sahyadrisevasanstha.in/userfiles/file/wosejasimokatan.pdfIn PDF document text
- https://lifesmart.lifesmart.ro/ckfinder/userfiles/files/jujoxudajorud.pdfIn PDF document text
- http://ohmytour.kr/FileData/ckfinder/files/20210909_9E0F28260A74AAA8.pdfIn PDF document text
- http://iqlacpro.vn/emotive/upload/files/64201911372.pdfIn PDF document text
- http://hflbdq.com/uploads/file/080116133619.pdfIn PDF document text
- https://www.helpfulhunks.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1613acb787f8ae---biberemevefalu.pdfIn PDF document text
- http://totalfinance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16130bfd1b2032---98719453923.pdfIn PDF document text
- http://mizuho-co.net/file/ck/files/15276977404.pdfIn PDF document text
- http://pngroup.pl/ckfinder/userfiles/files/9067074608.pdfIn PDF document text
- http://www.northern-japan.com/image/upload/File/kipiwopomideruxokisuzumel.pdfIn PDF document text
- https://e-uchebnici.com/img/file/92862048777.pdfIn PDF document text
- https://ascii.tn/web/cgi/file/98844724346.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=jetpack+compose+navigation+examplePDF 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_off0000d5f8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD5F8 | 17984 bytes |
SHA-256: e946f95b32c26a4a07dfdc34fa9ad42bcf393e904fa40891dd8e61440163494a |
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font_01_sfnt_off00010529.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10529 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011d40.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11D40 | 10868 bytes |
SHA-256: f5a162f78c21bb444f352c45ac93c804628da82a42232a93ece9f138dddf3a31 |
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