MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The file is a PDF containing embedded JavaScript, which is a common technique for delivering malicious content. The PDF also contains numerous links to external websites, many of which are hosted on disposable domains, suggesting a phishing or link-farming operation. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to redirect users to phishing sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9908
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://nsstore.mx/ckeditor/ckfinder/archivossubidos/files/vurudulematagimejux.pdf In PDF document text
- http://cathugo-catamarans.de/res/wysiwyg/file/78088403224.pdfIn PDF document text
- http://kunmobile.vn/files/uploaded/20210915/file/rorev.pdfIn PDF document text
- http://studiodabo.eu/userfiles/files/92657064118.pdfIn PDF document text
- http://aggengr.com/uploads/CMS/file/dexuko.pdfIn PDF document text
- https://rimsball.com/ckfinder/userfiles/files/zawima.pdfIn PDF document text
- https://branches.armz.ru/media/File/4457757116.pdfIn PDF document text
- http://imprezka.2kc.pl/Upload/file/fisurokazomomeronur.pdfIn PDF document text
- http://lavera.it/wp-content/plugins/formcraft/file-upload/server/content/files/161531d80f07aa---91016356071.pdfIn PDF document text
- https://reha.bg/content/upload/file/fusovigatikonuwitezibeku.pdfIn PDF document text
- http://veszpremkosar.hu/_user/file/80196131651.pdfIn PDF document text
- http://slkuang.com/v15/Upload/file/2021929162676567.pdfIn PDF document text
- https://newchat.xyz/js/ckfinder/userfiles/files/31156352667.pdfIn PDF document text
- https://indolabtek.com/Uploads/userfiles/files/sotumavefomizef.pdfIn PDF document text
- https://datajournonepal.org/files/jirifepiwik.pdfIn PDF document text
- https://karatenarrewarren.com.au/ckfinder/userfiles/files/sukeresosa.pdfIn PDF document text
- http://ristoranteibucanieri.it/userfiles/files/35597705175.pdfIn PDF document text
- https://samngaimarble.com/html_upload/file/degogakexatil.pdfIn PDF document text
- http://stylowa-pss.pl/userfiles/file/86956070342.pdfIn PDF document text
- https://cplastik.eu/data/cms/file/taxizatimuwonimew.pdfIn PDF document text
- http://ersatzmonitor.de/userfiles/file/95731362994.pdfIn PDF document text
- https://demowz.reikor.com/webimages/files/57444773042.pdfIn PDF document text
- https://newtech-utm.pl/userfiles/file/38605037440.pdfIn PDF document text
- http://futiandj.ntgis.com/UploadFile/2021/10/01/file/20211001_110413_106.pdfIn PDF document text
- http://www.yourhealthyourchoice.org/wp-content/plugins/formcraft/file-upload/server/content/files/1615a5e16bb516---buwurosajogabusodomu.pdfIn PDF document text
- https://pmcp-avac.com/files/upload-ckfinder/files/nugelaboxapitetoxa.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/cv9VXjIrmdE/uplcv?utm_term=antenuptial+contract+examplePDF 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_off0000ca3a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCA3A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e251.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE251 | 10552 bytes |
SHA-256: af97a51142c756b273da3726abed2b0bbb00aca1183d49e65b23241c4bf42444 |
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font_02_sfnt_off0000fa60.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA60 | 18296 bytes |
SHA-256: 7c15fcad9f6c976bac775e4f323cc862a735f1b52ccb4ec7b93f683bf87914c1 |
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