MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs, many of which point to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users to potentially malicious sites. The ML classifier strongly indicates malicious intent, and the structure aligns with a phishing or malware distribution lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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://pistant.ru/uplcv?utm_term=claim+definition+in+writing PDF link annotation
- https://marosme.ro/hirek/file/xewini.pdfIn PDF document text
- http://tvsatkrosno.pl/userfiles/file/59470114430.pdfIn PDF document text
- http://phdpecs.hu/userfiles/files/ruziterekebetawuj.pdfIn PDF document text
- https://ketex.com/trcgp/ckfinder/userfiles/files/telegaluravitimakegijow.pdfIn PDF document text
- http://nhatrangpalacehotel.com/app/webroot/upload/files/40445471677.pdfIn PDF document text
- http://sinocelltech.com/filespath/files/20210905080724.pdfIn PDF document text
- https://huangs.tw/uploads/files/202109071907222155.pdfIn PDF document text
- http://rainternacional.com/userfiles/file/43929994106.pdfIn PDF document text
- https://saftanton.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1613639a359195---5937893969.pdfIn PDF document text
- https://scavilecis.it/userfiles/file/608692612.pdfIn PDF document text
- https://www.paparazzirestaurant.com.au/wp-content/plugins/super-forms/uploads/php/files/3985dc7eb3a51f642ef853e4b0bb1720/64390890968.pdfIn PDF document text
- https://newoptic.sas-global.mn/uploads/files/penuferufivadekamegusi.pdfIn PDF document text
- http://urotunisia.com/uploads/FCK_files/file/sufuxalunubusexebum.pdfIn PDF document text
- https://miamivanservice.net/wp-content/plugins/formcraft/file-upload/server/content/files/1614a369170b56---4054062507.pdfIn PDF document text
- http://sieuthimaynhapkhau.com/upload/files/zavod.pdfIn PDF document text
- http://www.farmaciabergua.com/userfiles/files/nedanifivolosuvavevijuxom.pdfIn PDF document text
- http://drumlockingclamp.com/FCK_Editor_Images/files/xixomavukosamumop.pdfIn PDF document text
- http://parateam.cz/file/foxoviwokokogomupewukup.pdfIn PDF document text
- http://capmar.eu/userfiles/file/lewafa.pdfIn PDF document text
- https://hcs1000.org/wp-content/plugins/super-forms/uploads/php/files/70ff497fd5d1b0c49eab5ae269e0d843/66269571244.pdfIn PDF document text
- http://ticaproduce.com/ckfinder/userfiles/files/nisazixikari.pdfIn PDF document text
- https://plumcourse.com/wp-content/plugins/super-forms/uploads/php/files/e5504c1eaec0e2f1274006d4c1da4318/46690739530.pdfIn PDF document text
- http://happinessgown.com/upload/users/files/90674710979.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_off0000e5de.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE5DE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fdf0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFDF0 | 19836 bytes |
SHA-256: 3b60dab7019c6cb63905f539a6578d40afd769a47d38cbbabe893f6a39e8ce45 |
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font_02_sfnt_off000131e8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x131E8 | 10648 bytes |
SHA-256: 5a15dacae43152f56b442f40d6b1b10755ab68d2d0f6e1fc0ad701d11ec5d67d |
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