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. These links appear to be part of a link farm designed to redirect users to potentially malicious content. The ML classifier strongly indicates maliciousness, supporting the assessment of a phishing or redirection attack.
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://ketchas.ru/uplcv?utm_term=how+do+i+find+the+owner+of+an+android+phone PDF link annotation
- http://www.psstrecno.sk/wp-content/plugins/formcraft/file-upload/server/content/files/1613b3490023c3---65121878646.pdfIn PDF document text
- http://www.advancedevents.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1613c0b36de46b---95555619126.pdfIn PDF document text
- http://icsbc.ru/fuploader/file/71546488263.pdfIn PDF document text
- http://entrackintl.com/uploads/wonenibajexezenuxifasi.pdfIn PDF document text
- http://notarius.jurist-info.ru/uploads/news/fckeditor/file/lawedovopiwejodadij.pdfIn PDF document text
- http://www.jasfec.com/imgs/uploads/gogukuruwejapelalatanawi.pdfIn PDF document text
- http://tweedehandswikkelaar.nl/app/webroot/files/userfiles/files/63198833722.pdfIn PDF document text
- http://www.kzhep.in.ua/wp-content/plugins/super-forms/uploads/php/files/gfqel7ke0i5l4j64o768iimfj0/gazok.pdfIn PDF document text
- http://sfipl.in/userfiles/file/rafagupo.pdfIn PDF document text
- https://www.mercedesbenzofaustinservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613c493debba7---38304922295.pdfIn PDF document text
- http://techbico.vn/uploads/image/files/nokebapak.pdfIn PDF document text
- https://www.taxikladis.gr/wp-content/plugins/formcraft/file-upload/server/content/files/1613239756bf82---35006994595.pdfIn PDF document text
- https://www.santaterezinha.com.br/js/ckfinder/userfiles/files/54382383149.pdfIn PDF document text
- http://limobebe.com/userfiles/files/46192053997.pdfIn PDF document text
- http://crediramasrl.it/public/file/68579657774.pdfIn PDF document text
- http://www.lukoilmarine.com/ckfinder/userfiles/files/zebuxelejojezefa.pdfIn PDF document text
- http://mid-europe-ex.com/images/blog/file/42728871951.pdfIn PDF document text
- http://www.radeton-cz.vasestranky.cz/ckfinder/userfiles/files/xefinebadolimuv.pdfIn PDF document text
- http://gitishahjahanpur.org/ckfinder/userfiles/files/zarujemikuloletumemokop.pdfIn PDF document text
- https://urbanlivin.lu/userfiles/files/dagonujedokuraraxeso.pdfIn PDF document text
- http://profstil.az/userfiles/file/86023002917.pdfIn PDF document text
- https://thehouseproduction.net/file/85705747613.pdfIn PDF document text
- http://atsrealtyvietnam.com/upload/files/roxusodumavosejapera.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_off0000ea5f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA5F | 17620 bytes |
SHA-256: fc39407ef13da39d86a413f04ef8db891323051b1313379e2ea9360214601e23 |
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font_01_sfnt_off00011879.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11879 | 10456 bytes |
SHA-256: dd1e44f5c62942a1683e27c1123e32245ce8e6167db5327f36d3ff364edb4c00 |
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font_02_sfnt_off0001301e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1301E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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