MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a large number of external URIs, many of which are hosted on disposable domains and appear to be part of a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or redirecting users to malicious content. The embedded JavaScript is a common technique for executing malicious code or initiating redirects within PDFs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
Heuristics 6
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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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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://cructi.ru/uplcv?utm_term=best+business+game+android PDF link annotation
- https://alley.52886.tw/uploads/files/47897886472.pdfIn PDF document text
- http://hoteldazegliotorino.com/userfiles/files/25408486823.pdfIn PDF document text
- http://eatoceanic.iorderfoods.com/uploads/files/65465740587.pdfIn PDF document text
- http://sunriverps.com/data/editor/file/57778889886.pdfIn PDF document text
- https://anne-berger.de/sites/anne-berger.de/files/fkcfile/folobegugafasomapesoxad.pdfIn PDF document text
- http://hstairan.com/fckeditor/editor/filemanager/connectors/php/userfiles/file/wadozijakug.pdfIn PDF document text
- http://bluecreator.biz/ckfinder/userfiles/files/48362647529.pdfIn PDF document text
- http://kdekdyjak.cz/data/6712524178.pdfIn PDF document text
- https://beautydiction.com/ckfinder/userfiles/files/jepilajejerexewodarituke.pdfIn PDF document text
- http://srtcivilnorth.com/ckeditor_file/files/liwozigumajodasafosizaso.pdfIn PDF document text
- http://zhongjiukeji.com/upload_fck/file/2021-9-7/20210907221514433020.pdfIn PDF document text
- http://africalegal.nl/userfiles/file/xonusewev.pdfIn PDF document text
- https://fundacionamigosdelmarcaribe.ong/ckfinder/userfiles/files/32728662424.pdfIn PDF document text
- http://nicolalazzarotto.com/userfiles/files/13429178754.pdfIn PDF document text
- http://szakkepzosiklos.hu/upload/file/zelunefevutubur.pdfIn PDF document text
- http://neoneofytou.com/ckfinder/userfiles/files/99373609193.pdfIn PDF document text
- http://www.jacenter.org/js/ckfinder/userfiles/files/16805206572.pdfIn PDF document text
- http://yenidenyuzlendirme.com/ckfinder/userfiles/files/94222145104.pdfIn PDF document text
- http://duet-czluchow.pl/userfiles/file/15621904568.pdfIn PDF document text
- https://ipic.vn/userfiles/file/gilomid.pdfIn PDF document text
- https://knoxvilleremembers.com/media/5620133725.pdfIn PDF document text
- http://orthodoxnews.us/file/43643965774.pdfIn PDF document text
- https://www.grdr.org/paidel/ckfinder/userfiles/files/womijaxizavemitezosaz.pdfIn PDF document text
- https://lapdonline.org/file/98078151679.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_off0000ece5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECE5 | 16796 bytes |
SHA-256: 423ac1d5ebab01284346ca60c8edb2b4c6974c8e9006a419d6cc2a35b456051c |
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font_01_sfnt_off0001187e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1187E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00013095.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13095 | 10840 bytes |
SHA-256: 50747c32a043ee43d7c25fbfdb66a2b783bb8c3c8e86821faefed8cc7b681330 |
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