MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript, which is a common technique for executing malicious code. It also features a large number of external links, many pointing to compromised websites or disposable hosting, indicating a link farm designed to redirect users. ClamAV detection and ML classification strongly suggest malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://irlanc.ru/uplcv?utm_term=can+we+recover+data+after+factory+reset+android PDF link annotation
- https://fotobolfestmeny.hu/mvc/userfiles/file/guvutukabibegaga.pdfIn PDF document text
- http://fine-trading-knotwork.de/uploads/media/40125933533.pdfIn PDF document text
- http://dailythang.com/userfiles/files/tovapuxoneger.pdfIn PDF document text
- https://warungmimpishio2.com/contents/files/jogusak.pdfIn PDF document text
- http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/fv72v8abugmkj3kdmegb14bl83/86813240440.pdfIn PDF document text
- https://www.mclarenpress.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142eb66755e4---doxurelenenasururibe.pdfIn PDF document text
- http://toanlinh.vn/upload/files/tevirebamo.pdfIn PDF document text
- https://birgatour.mn/js/ckfinder/userfiles/files/68302215854.pdfIn PDF document text
- https://postelezmasivu-zlin.cz/ckfinder/userfiles/files/wudibajuvirova.pdfIn PDF document text
- http://brushes.tfe-design.dk/userfiles/file/jasalupexivuvurinafok.pdfIn PDF document text
- https://www.reliancecareuk.com/wp-content/plugins/super-forms/uploads/php/files/7d0cc05ed4fc7af6d6550c6f3f534684/vaxet.pdfIn PDF document text
- http://archiw.bibliotekalesmierz.eu/img/upload/files/wipevafowodowifasosusoge.pdfIn PDF document text
- https://www.sensiblemachines.com/ckfinder/core/connector/php/files/52991481981.pdfIn PDF document text
- http://zeminyerkaplama.com/upload/ckfinder/files/togisifunixivuva.pdfIn PDF document text
- http://stavebnevyrobky.sk/www/upload/files/xarujizat.pdfIn PDF document text
- https://khanoomhoteli.com/basefile/khanoomhotelicom/files/59604625905.pdfIn PDF document text
- http://pcserviszlin.cz/ckfinder/userfiles/files/35245295634.pdfIn PDF document text
- https://learnrkbin.jugalbandiresearch.com/ckfinder/userfiles/files/jorapisiberema.pdfIn PDF document text
- http://hieuchuan.com/upload/files/51947959501.pdfIn PDF document text
- http://potentialdesign.cn/userfiles/file/1631853846.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_off0000cb53.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB53 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e36a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE36A | 10720 bytes |
SHA-256: 4d13ff46345ca4bc20ee4c278be66804f97b8621329ff25bb28fdd632d25ca04 |
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font_02_sfnt_off0000fc4b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC4B | 18516 bytes |
SHA-256: 3f0cca089c3be78d440a43400634d7393b76d8fa874c748f691f6ccda8a9c7b7 |
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