MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1059.007 JavaScript
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript, which is a common technique for exploiting PDF vulnerabilities or redirecting users. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates a large number of external links pointing to disposable hosting, suggesting a link farm designed to obscure the ultimate destination. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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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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://servingltda.com/userfiles/file/mevaxibudupejovewa.pdf In PDF document text
- http://www.extramas.com/userfiles/files/lekujobifup.pdfIn PDF document text
- http://flagrant-desir.com/userfiles/file/pogozudufilinobigiv.pdfIn PDF document text
- http://an-professional.ru/img/files/file/32717911115.pdfIn PDF document text
- https://baxsporthorses.nl/userfiles/file/76616960266.pdfIn PDF document text
- http://brilliantsolarpaneling.com/userfiles/file/79721108658.pdfIn PDF document text
- http://bluebiz.kr/userData/board/file/92278669374.pdfIn PDF document text
- https://beautydent.hu/editor_up/jonuzetunajev.pdfIn PDF document text
- https://artbynela.com/uploads/file/mizobipofexobetil.pdfIn PDF document text
- http://www.ashtralmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/161342b6954c28---48257002354.pdfIn PDF document text
- http://www.artefuoricentro.it/js/lib/ckfinder/userfiles/files/52724961585.pdfIn PDF document text
- http://thietbiytedaibao.com/media/files/53216200494.pdfIn PDF document text
- https://eminenceconstruction.ca/viking1/uploads/files/84574447737.pdfIn PDF document text
- http://austria-ex.com/images/blog/file/lifalofi.pdfIn PDF document text
- https://basundharamart.com/userfiles/file/89225484755.pdfIn PDF document text
- http://zhizhencn.com/filespath/files/20210903131646.pdfIn PDF document text
- http://herborgthailand.com/file_media/file_image/file/zajafifojax.pdfIn PDF document text
- http://brezov-gaj.si/uporabnik/file/67159510758.pdfIn PDF document text
- http://aquitaine.annuaire-regional.com/ckfinder/userfiles/files/89994056558.pdfIn PDF document text
- http://asbufestival.com/uploads/FCK_files/file/simigesakofiba.pdfIn PDF document text
- https://alkalacarservice.com/public_html/userfiles/file/48998919216.pdfIn PDF document text
- http://www.johnrealestate.in/ckeditor-ckfinder-integration/uploads/files/14245309223.pdfIn PDF document text
- https://easternresources.net/ckfinder/userfiles/files/bejeje.pdfIn PDF document text
- http://marsalanoleggio.it/userfiles/files/wedopipipafowuxamep.pdfIn PDF document text
- https://bitree.ru/ckfinder/userfiles/files/50975583548.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=zombie+night+terror+androidPDF 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_off0000dae9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDAE9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f2fb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF2FB | 18624 bytes |
SHA-256: 03ba891ba2f59e3c4189c1ce4b9c944e0c1db91a78b2b8355e1bdfceb4e61b95 |
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font_02_sfnt_off000122b0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x122B0 | 10584 bytes |
SHA-256: 69f236fe2a676d2393232834bf751a5fea8ef9a4f166d3a442cb1d03ae60e8b6 |
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