MALICIOUS
126
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded URLs, many of which are part of a link farm hosted on disposable domains, suggesting a phishing or redirection scheme. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to deliver a secondary payload or lead users to credential harvesting pages. No scripts were extracted, but the PDF structure itself is used to host and distribute malicious links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9982
Heuristics 5
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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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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://wastran.ru/uplcv?utm_term=mei+a+level+maths+forces+and+motion+in+2d+topic+assessment+answers PDF link annotation
- http://bigbulkbags.ahmadpackages.com/survey/userfiles/files/nemaneza.pdfIn PDF document text
- https://tonmathunglan.vn/upload/files/27895083749.pdfIn PDF document text
- http://wonsakai.com/uploads/files/nawikudimebipu.pdfIn PDF document text
- http://thekitchendesignstudio.org/uploads/files/85510719724.pdfIn PDF document text
- https://bulendengin.com/upload/ckfinder/files/vuxagozojalesuvakofugub.pdfIn PDF document text
- http://pocatellocampfire.com/wp-content/plugins/super-forms/uploads/php/files/0j46829b5tbmjg9kt21m70jukh/vufepaf.pdfIn PDF document text
- https://walterchiropracticclinic.com/home/walter/public_html/ckfinder/userfiles/files/46607866191.pdfIn PDF document text
- http://dkstores.gr/userfiles/file/96665900336.pdfIn PDF document text
- http://teranor.com/ckfinder/userfiles/files/10344786223.pdfIn PDF document text
- http://studiosantomauro.it/userfiles/files/80674998745.pdfIn PDF document text
- https://srsatta.com/ckfinder/userfiles/files/70624484618.pdfIn PDF document text
- https://peusch.lu/userfiles/files/33756576310.pdfIn PDF document text
- http://pc580.cn/upload_fck/file/2021-9-11/20210911093357860875.pdfIn PDF document text
- https://hsegroup.ru/wp-content/plugins/super-forms/uploads/php/files/dgns5ctkn3utncu5g8ch9mpa04/zajepanijoxi.pdfIn PDF document text
- http://saxonrt.hu/img/userfiles/files/lozuwetemulalotenodesib.pdfIn PDF document text
- http://onlinepravenconsultant.com/uploads/wysiwyg/files/jaxeremavexilikubizibami.pdfIn PDF document text
- https://onlineadda.organicemall.com/ckfinder/userfiles/files/javesofitamipafid.pdfIn PDF document text
- http://tjsyjdq.com/v15/Upload/file/2021982229208617.pdfIn PDF document text
- http://maynenkhipuma.vn/quangbasanpham/app/webroot/upload/image/files/19446635748.pdfIn PDF document text
- https://perfecthospitals.org/ckfinder/userfiles/files/11038521340.pdfIn PDF document text
- http://flex-link.cn/uploadfiles/files/vinowixumebo.pdfIn PDF document text
- http://precisao.net/files/files/zijaru.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_off0000b2d4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB2D4 | 11148 bytes |
SHA-256: ca83477a89e25da8edab49436aa2948448b65798ca79685d054040d3cda535f3 |
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font_01_sfnt_off0000ccc6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCCC6 | 17400 bytes |
SHA-256: e589d891f80b3a7da897333dcb3ecafdd49a35d88e8409e981e382237945da89 |
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font_02_sfnt_off0000f93e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF93E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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