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 or disposable hosting. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a link farm designed to direct users to potentially malicious content, disguised as a free VPN download. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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://behbehaniprojects.com/uploads/files/23636061595.pdf In PDF document text
- https://7mark3t2-7aya.com/contents/files/tuzafolab.pdfIn PDF document text
- http://aj-freight.com/ckfinder/userfiles/files/45506124579.pdfIn PDF document text
- http://clubselectionvoyages.com/images/file/vujexanopefutedi.pdfIn PDF document text
- https://shiokuda2.com/contents/files/dasuninexekinunuxiki.pdfIn PDF document text
- http://chandigarhdatarecovery.com/files/file/kanew.pdfIn PDF document text
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e2b0c5ba08---74102772509.pdfIn PDF document text
- http://kiddeefire.com/media/userfiles/files/dezorotodaxe.pdfIn PDF document text
- http://myrbacken.se/login/ckfinder/userfiles/files/xusupapekozewofibu.pdfIn PDF document text
- http://tutaylamhet.com/storage/ckfinder/files/pixexufuxutabowigo.pdfIn PDF document text
- https://ku4ysk-9lgp4y.com/contents/files/xowiripefitit.pdfIn PDF document text
- https://jatransfer.com/userfiles/file/60167119527.pdfIn PDF document text
- http://csc0516.com/userfiles/file/20210915210135_tjgong.pdfIn PDF document text
- https://linlinline.biz/js/ckfinder/userfiles/files/89182034618.pdfIn PDF document text
- http://autohondl.cz/userfiles/file/magivax.pdfIn PDF document text
- http://gruppocaminiti.it/userfiles/files/faxenovitub.pdfIn PDF document text
- http://horvathortho.hu/tmp/63114414790.pdfIn PDF document text
- http://enotecagaribaldi.it/userfiles/files/25871554949.pdfIn PDF document text
- http://yugang360.com/upload_fck/file/2021-9-9/20210909143835337019.pdfIn PDF document text
- https://www.emcp-pmce.ca/_includes/ckfinder/userfiles/files/69632307032.pdfIn PDF document text
- https://weblative.com/wp-content/plugins/super-forms/uploads/php/files/ag345rjek2ldubdb45fbuhvam6/59103821449.pdfIn PDF document text
- https://weilaimachinery.com/userfiles/files/82046748638.pdfIn PDF document text
- https://shining4u.com/wp-content/plugins/super-forms/uploads/php/files/f564cca6e415dc972522270975caf4d0/16880003422.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=free+super+z+vpn+downloadPDF 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_off0000ec5b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC5B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0001046d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1046D | 20128 bytes |
SHA-256: 3569387b291e128d20e4d824ce2d7fc59d47caf43e58d9a27b7a2af11b3d4be5 |
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font_02_sfnt_off000138b8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x138B8 | 10484 bytes |
SHA-256: 73558b5e7065e27fd93ca1acf304cef839ec23dcfd2a502d587c7e755d5fd465 |
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