MALICIOUS
104
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains an embedded JavaScript stream and numerous external URIs, many of which point to compromised WordPress upload directories or disposable hosting, suggesting a link farm designed to redirect users. The ML classifier strongly indicates malicious intent. The embedded JavaScript likely facilitates the redirection or further malicious activity.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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 http://xyr59.com/filespath/files/20210908120701.pdf In PDF document text
- http://kangmeideyiliao.com/uploadfile/file///2021090517531693.pdfIn PDF document text
- http://yourhealthyanswer.com/ckfinder/userfiles/files/livisaxepavaxeku.pdfIn PDF document text
- http://bowenlawmt.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/migizusimofiweximo.pdfIn PDF document text
- https://textolinguisticsolutions.com/upload/editor/file/88921110364.pdfIn PDF document text
- http://pantanalmsnews.com.br/ckfinder/userfiles/files/10100072110.pdfIn PDF document text
- http://unicorn-furnitures.com/d/files/22778550580.pdfIn PDF document text
- http://brcassociati.com/userfiles/files/96992886087.pdfIn PDF document text
- https://e-motorcycle.tw/upload/emotorcycle/files/xiravesuxexuwazupax.pdfIn PDF document text
- https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/161397aee0d989---gowatuwaliropadevazet.pdfIn PDF document text
- https://eecpowerindia.com/codelibrary/ckeditor/ckfinder/userfiles/files/jabizuxekesazes.pdfIn PDF document text
- http://stcforanebanglore.smcim.com/www/js/ckfinder/userfiles/files/25910595078.pdfIn PDF document text
- http://tamlaproject.com/userData/board/file/mixepedazo.pdfIn PDF document text
- http://www.cavice.fi/tiedostot/files/femolopo.pdfIn PDF document text
- http://www.mearesandassociatesllc.com/siteuploads/editorimg/file/wisixatepuzipazovemaperot.pdfIn PDF document text
- https://perfumes.dropship-tracking.com/userfiles/files/6746928314.pdfIn PDF document text
- http://studiotecnicolamanna.com/userfiles/files/xufobawokaxumawufikowafi.pdfIn PDF document text
- https://promocionesnma.com/wp-content/plugins/super-forms/uploads/php/files/0940ac6bbdfe3af7727dacd773877c11/sewagesakuwenuj.pdfIn PDF document text
- https://forkidsvietnam.vn/wp-content/plugins/super-forms/uploads/php/files/r69bbqh6ketth398dbepktqd71/detavugurigitokotef.pdfIn PDF document text
- https://ifbscalidad.eus/files/galeria/files/mujuf.pdfIn PDF document text
- http://www.cerathai.com/image/upload/File/77152627352.pdfIn PDF document text
- http://torgoborud.org/images/file/tobuweribusutizogekime.pdfIn PDF document text
- http://ikkosushi.com/uploads/files/51140078716.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=international+mens+dayPDF 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_off0000e102.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE102 | 10472 bytes |
SHA-256: 2a35fa50c58675429b00186395b2bfbe8569dd6f769525c6816a8ef251c3e79e |
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font_01_sfnt_off0000f8c6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8C6 | 17596 bytes |
SHA-256: bd146a5a0b137104f64ca4f1f2cb7160200855f99b0c8a17e042129db8bb64b3 |
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font_02_sfnt_off00012659.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12659 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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