MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as a malicious PDF by ClamAV and an ML classifier. It contains embedded JavaScript and numerous external URIs, many of which point to potentially malicious PDF files. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates a link farm structure, suggesting an attempt to distribute malware or conduct phishing by directing users to various external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9976
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 http://uran-berlin.com/userfiles/file/niwezemudovewizoxiluvo.pdf In PDF document text
- https://xulynuocphangiathinh.vn/images/pic/file/783410778.pdfIn PDF document text
- http://tnmetalworks.com/images/files/24660006470.pdfIn PDF document text
- https://xn--nmqu14inmf.com/upload/files/niberofug.pdfIn PDF document text
- http://scea.edu.mn/ckfinder/userfiles/files/folusanexevozadobig.pdfIn PDF document text
- http://geoplan.su/userfiles/file/73383946705.pdfIn PDF document text
- http://bearings.vn/images/ckeditor/files/kakezumegigimolusamevuki.pdfIn PDF document text
- http://ndt-tl.ru/upload/file/gusefefiwagidufeb.pdfIn PDF document text
- http://swancentive.com/cote_dor_import/admin/ckfinder/userfiles/files/37101625658.pdfIn PDF document text
- http://www.ettermanenterprises.com/ckfinder/userfiles/files/gutidamez.pdfIn PDF document text
- https://activepymes.com/pub/file/vufevupobulalizufe.pdfIn PDF document text
- http://xn----7sbakif2a3azdub.xn--p1ai/admin/ckfinder/userfiles/files/mudulojezuwej.pdfIn PDF document text
- http://automsystem.com/UploadFile/file/20210910143413662.pdfIn PDF document text
- http://residencecarlofelice.com/userfiles/files/649804181.pdfIn PDF document text
- https://www.chauffeur-prive-nice.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1613f053d913de---dikidomixigunu.pdfIn PDF document text
- http://timatey.kz/wp-content/plugins/super-forms/uploads/php/files/0f0fq9rho700aqcii6oti04bb1/26475184471.pdfIn PDF document text
- http://josepholszowka.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/48451882598.pdfIn PDF document text
- http://biswasi.com/userfiles/files/xufugus.pdfIn PDF document text
- http://yuanjen.com/ckfinder/userfiles/files/kadawodawekuxobulumiwit.pdfIn PDF document text
- http://albarossa.jp/js/upload/files/36459020044.pdfIn PDF document text
- http://webursitet.org/Files/file/39705642215.pdfIn PDF document text
- http://website-design-company.in/dev3/damodar/ckfinder/core/connector/php/userfiles/files/puzerawewid.pdfIn PDF document text
- http://kidneytracker.com/ckfinder/userfiles/files/nosopigukojalugedixupop.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=how+to+restore+calendar+events+on+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_off0000c15a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC15A | 17040 bytes |
SHA-256: 2ec5459c417698f18c2984f61df82f1a07a00a43c4b19f7ddf9a5bbe49a8550b |
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font_01_sfnt_off0000ed92.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED92 | 10508 bytes |
SHA-256: c74b7c74eefdb4c9331673331124afdd06f4080b9837331e27a32f10ae5e7f59 |
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font_02_sfnt_off000105a3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x105A3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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