MALICIOUS
104
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by an ML classifier as malicious. It contains a link farm with numerous URLs, many pointing to potentially compromised CMS upload storage or disposable hosting, suggesting an attempt to distribute further malicious content. The presence of a 'download' button lure reinforces the malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://vhz.cz/user-files/54170730199.pdf In PDF document text
- http://seoulsquare.com/userfiles/file/gaxubewotunixaturijive.pdfIn PDF document text
- http://osstemcardiotec.com/files/fckeditor/file/64768025161372b84e88f3.pdfIn PDF document text
- http://www.tenniscanberra.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1612ea5c329324---59343847690.pdfIn PDF document text
- https://stalbeckers.nl/userfiles/image/file/24225936677.pdfIn PDF document text
- https://rockyhotelsgroup.com/uploaded/files/jebivos.pdfIn PDF document text
- http://stellar-toys.com/ckfinder/userfiles/files/xarovefamijesazajuwin.pdfIn PDF document text
- https://brunoamaranti.it/wp-content/plugins/super-forms/uploads/php/files/k1894q38i3afeh41vu9lgah2l6/32606592420.pdfIn PDF document text
- http://podolsk-kondicionery.ru/upload_picture/file/14993413753.pdfIn PDF document text
- http://jamalcar.com/userfiles/file/46034718929.pdfIn PDF document text
- http://www.larucheapain.fr/ljk/file/tuzadaveturoberarad.pdfIn PDF document text
- http://kino-cosmik.ru/sadm_files/56119380765.pdfIn PDF document text
- http://alumcity.ru/userfiles/file/xebalasa.pdfIn PDF document text
- http://ersenergy.com/UserFiles/file/busitowa.pdfIn PDF document text
- https://www.hmgfinance.com/ckfinder/userfiles/files/vazafuvumudilerasopo.pdfIn PDF document text
- http://yuseigachi.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613a7b6ed8ef0---84898678415.pdfIn PDF document text
- https://karpataljaturizmus.hu/upload/8825387046.pdfIn PDF document text
- https://haciendaloscipreses.cl/upload/file/44786309244.pdfIn PDF document text
- http://proximeo.com/ckfinder/userfiles/files/64917034762.pdfIn PDF document text
- https://geniodelweb.com/file/49643778888.pdfIn PDF document text
- https://www.chinacimctrailer.com/wp-content/plugins/super-forms/uploads/php/files/6eb508c5719ea09abfd9ebbd33d13ce0/jefisuvobizupelimu.pdfIn PDF document text
- http://eastwoodfamily.net/userimages/23393328950.pdfIn PDF document text
- http://toyotacri.com/userfiles/files/xogosobigufedogovenomaz.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=123movies+free+movie+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_off0000df15.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF15 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f72c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF72C | 10816 bytes |
SHA-256: 0d26f3981a948a56a1189d9ae46b58b69d254ffec939731975c16275d52bf886 |
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font_02_sfnt_off00011033.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11033 | 17932 bytes |
SHA-256: fe5a462fdb3594658cb4f4a33bfcf77ba1ed57aca5dacdddb4394d1f09dc95b5 |
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