MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample is a PDF file identified as malicious by ClamAV and an ML classifier. It contains numerous external links, with a high-confidence heuristic indicating a link to an algorithmically-generated URL, suggesting a phishing or malware distribution attempt. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic further supports this by identifying it as a link farm on disposable hosting. No scripts were extracted, but the presence of multiple external URLs points to an attack pattern involving directing users to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
Heuristics 6
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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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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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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://nhuaduongnhapkhauaz.org/upload/files/sulasebarakavolezes.pdf In PDF document text
- http://cesishotel.com/res/wysiwyg/file/56135234165.pdfIn PDF document text
- https://ecableapp.com/FCKeditor/FCKimgUpload/file/vupupin.pdfIn PDF document text
- https://amagi.la/wp-content/plugins/formcraft/file-upload/server/content/files/1615e31a55626e---dakonaj.pdfIn PDF document text
- http://www.vegagastro.pl/upload/file/zavamo.pdfIn PDF document text
- https://ijacr.net/assets_admin/ckfinder/core/connector/php/uploads/files/basobogabasofo.pdfIn PDF document text
- https://ambulatorioveterinariosismondi.eu/file/24258697891.pdfIn PDF document text
- https://receptabc.hu/images_banner/files/lozomuvixufadupararot.pdfIn PDF document text
- https://samngaimarble.com/html_upload/file/jajexopizop.pdfIn PDF document text
- http://keitbg.com/images/files/firujoxidedef.pdfIn PDF document text
- https://amartzon.store/wp-content/plugins/super-forms/uploads/php/files/bd0ab1bb41d479630d04099cfc271fbe/49738965474.pdfIn PDF document text
- https://www.ijdsir.com/ckfinder/userfiles/files/givuzabusepabineme.pdfIn PDF document text
- https://duel.pl/userfiles/file/84586409983.pdfIn PDF document text
- http://degeninhotel.ru/admin/ckfinder/userfiles/files/pepij.pdfIn PDF document text
- http://ih-consultant.com/ckfinder/userfiles/files/93815192022.pdfIn PDF document text
- https://network-italia.com/file/98270800551.pdfIn PDF document text
- http://voyagevietnamlaos.com/hinhanh/file/96761037205.pdfIn PDF document text
- https://tomorrowhubs.com/upload/users/files/38843111024.pdfIn PDF document text
- http://sadiqandsons.com/userfiles/files/redujonakimewidojizasili.pdfIn PDF document text
- http://agataklimowska.pl/userfiles/file/76626776925.pdfIn PDF document text
- http://pnalog.ru/images/file/74581752298.pdfIn PDF document text
- http://ksiclubbiz.ksiclub.org/svnprojects/DHD/Source/images/files/96778895267.pdfIn PDF document text
- http://aisne.proximeo.com/ckfinder/userfiles/files/maniboxixudutupivagupuzo.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=swelling+in+one+leg+and+footPDF 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_off0000d7f3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7F3 | 18476 bytes |
SHA-256: 23fd34fed527d89f1fb9c4f1d4588b6517beb78a5cf38ebe87c6d8226bf9be0b |
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font_01_sfnt_off00010821.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10821 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012038.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12038 | 10424 bytes |
SHA-256: 5d3a92dd8168fcde2c8a2492ea856151ff36cb2b9077158fde101ddc2eb65118 |
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