MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains embedded JavaScript and numerous external links, many pointing to compromised WordPress sites and disposable domains, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, likely involving exploitation of PDF vulnerabilities to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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://www.santaterezinha.com.br/js/ckfinder/userfiles/files/94921542951.pdf In PDF document text
- http://yokohama-model.com/userfiles/files/xonasagadezuwidened.pdfIn PDF document text
- http://jcon-aps.dk/userfiles/file/80513310481.pdfIn PDF document text
- http://www.pvvc.cz/files/37841116063.pdfIn PDF document text
- http://floridare.ru/app/webroot/img/uploads/file/504608_9988664514.pdfIn PDF document text
- http://www.aaar.cat/assets/js/ckfinder/userfiles/files/vixubanasofesatoxarow.pdfIn PDF document text
- http://aow.infogestnet.it/ckfinder/userfiles/files/3853218761.pdfIn PDF document text
- http://fortlauderdalelimorental.net/wp-content/plugins/formcraft/file-upload/server/content/files/1612ed595f1b2e---19062758712.pdfIn PDF document text
- http://sportsclinicwest.ie/media/contents/file/71466670878.pdfIn PDF document text
- http://taxiluzern.ch/khurasan/userfiles/files/zajenamugepupo.pdfIn PDF document text
- http://bagpack.com.np/wp-content/plugins/formcraft/file-upload/server/content/files/16133550cb92f7---50874601265.pdfIn PDF document text
- http://thucphamchucnangmy.vn/uploads/files/93529388865.pdfIn PDF document text
- https://denis-lefebvre-services.com/fichiers/file/57356013306.pdfIn PDF document text
- https://franciscojaviermoreno.com/DocsCKeditor/files/vakotiro.pdfIn PDF document text
- http://klubbelgickychobrov.sk/editor_uploads/files/kutekokato.pdfIn PDF document text
- http://fotografieindex.nl/images/uploads/rodeg.pdfIn PDF document text
- http://lammensfilip.be/uploads/files/togafavosojak.pdfIn PDF document text
- https://olivermilk.vn/tctt/sites/aaa/file/jamugawetisu.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1616949acae266---17713568941.pdfIn PDF document text
- https://attack.lt/images/files/bopagonozajamibagikaf.pdfIn PDF document text
- http://animalscipublisher.com/files/upfiles/file/vunezotozadaxumawepaxadoz.pdfIn PDF document text
- https://feedproxy.google.com/~r/Gsjc/~3/xPAns0MRe5M/uplcv?utm_term=remain+objective+meaningPDF 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_off0000d5e8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD5E8 | 17048 bytes |
SHA-256: d4f77a73aadac6c4311e68a4f89b1579856f3d53742fdc8bd06bf584ef36b394 |
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font_01_sfnt_off000100af.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100AF | 10640 bytes |
SHA-256: 633d0ad1299f8fa352d4d6256f170251058730f8bb93cf60f61414ca9c7951ab |
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font_02_sfnt_off0001190d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1190D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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