MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains a link farm pointing to multiple compromised WordPress sites, which in turn host other PDF files. This suggests a multi-stage attack where the initial PDF serves as a lure to redirect users to further malicious content. The ML classifier strongly indicated maliciousness, supporting this assessment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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 http://www.phonefixcomo.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077473d85778---zomit.pdf In PDF document text
- https://skazkavdom.com/wp-content/plugins/super-forms/uploads/php/files/151f6fa7914de2d0fd1359c489d43d7b/bolirupati.pdfIn PDF document text
- http://playbabydoll.com/userfiles/file/bilakalelarodakiketawu.pdfIn PDF document text
- http://ofitecnic.es/files.ofitecnic/fck_up/file/nekelibuxar.pdfIn PDF document text
- https://alemarferries.alemarsnp.gr/ckfinder/userfiles/files/vodiferusipizixuvex.pdfIn PDF document text
- http://kingalbertltd.com/uploadedfiles/file/digepelawezepivetexegonu.pdfIn PDF document text
- http://keletunderground.hu/images/uploaded_pics/file/13128776902.pdfIn PDF document text
- http://rethabise.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160a0cf456d41a---musovinakutotilo.pdfIn PDF document text
- https://www.tangelo.no/wp-content/plugins/formcraft/file-upload/server/content/files/16075b65e5efbf---10751122485.pdfIn PDF document text
- http://richmore.kr/uploadfile/fckeditor/file/78840642013.pdfIn PDF document text
- http://hitecds.com/userfiles/file/48848102430.pdfIn PDF document text
- http://abcbyspu.net/ckfinder/images_store/files/60774563898.pdfIn PDF document text
- https://premiumvipbusiness.com/wp-content/plugins/super-forms/uploads/php/files/21c1631ff5edb08361c08ad5577d5f03/firunofamiva.pdfIn PDF document text
- http://turhantur.com/turhantur/files/68057670121.pdfIn PDF document text
- https://grandhotelbulgaria.com/userfiles/file/korojux.pdfIn PDF document text
- https://oykufestivali.com/ckfinder/userfiles/files/71142465165.pdfIn PDF document text
- https://ridersshop.it/file/44251241621.pdfIn PDF document text
- http://teenmag.cz/userfiles/file/51185768987.pdfIn PDF document text
- http://earthtalismanjewelry.com/clients/b/b2/b27d4d76c51cd35ccef873a204118430/File/wumiwijafonejo.pdfIn PDF document text
- http://graphicyazd.com/ckfinder/userfiles/files/63871817866.pdfIn PDF document text
- http://ohappy.org/userData/board/file/60298912151.pdfIn PDF document text
- http://cedresarquitectura.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609845426099e---mavibirevujiranor.pdfIn PDF document text
- http://magooferta.pl/uploads/fck/file/vimufuromurokowigudap.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/fzgW7-mxBc0/uplcv?utm_term=grindhouse+shift+user+manualPDF 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_off0000d40c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD40C | 17128 bytes |
SHA-256: 068550b158163d2937fbb3da42c7102bf3c8f7e35a3d6f367110786c6a834b7f |
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font_01_sfnt_off0001004d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1004D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011864.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11864 | 10756 bytes |
SHA-256: 706b919ad8ab755a07dc4e8b4a3da77913052d12da033f47d00b7ed80bd9cf3c |
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