MALICIOUS
74
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs pointing to a link farm hosted on disposable domains. The ML classifier strongly indicates malicious intent, and the heuristic for a link farm on disposable hosting further supports this. The embedded JavaScript likely facilitates the redirection to these malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 5
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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://ekhoron21.mn/uploads/files/kovoruvesanogim.pdf In PDF document text
- http://dastone.ru/userfiles/file/rezorupexaxuruvow.pdfIn PDF document text
- http://synhbio.com/upload/files/48134266304.pdfIn PDF document text
- https://harmony-lazienka.pl/Upload/file/wepiwiga.pdfIn PDF document text
- https://khambenhxahoi115.com/images/files/pufukefavafedotikeg.pdfIn PDF document text
- https://noithathoaphat11.com/upload/files/95331026841.pdfIn PDF document text
- http://cuahuyhoang.com/media/ftp/file/35127092235.pdfIn PDF document text
- https://md-bud.pl/szklo/photos/file/43258981672.pdfIn PDF document text
- http://eschool365.in/js/admin/uploadfiles/file/saboxudebatipitajozomofi.pdfIn PDF document text
- https://www.mobytec.com.br/mobytec/wp-content/plugins/formcraft/file-upload/server/content/files/1612f05d46a169---woraf.pdfIn PDF document text
- https://gosselindesign.com/images/from_fckeditor/fichiers/luwilonegofok.pdfIn PDF document text
- https://kakvkusno26.ru/wp-content/plugins/super-forms/uploads/php/files/a87d9b7a92e3e8d6d613dcd733b612fd/novulaz.pdfIn PDF document text
- https://yuanfuconstruction.com/ckfinder/upload/files/zekibebuwax.pdfIn PDF document text
- http://appli-veolia.net/ckfinder/userfiles/files/56907112633.pdfIn PDF document text
- http://nagakuratrading.com/js/upload/files/lijazetelatuzewugibu.pdfIn PDF document text
- https://fallahi-sch.com/userfiles/file/xijerilinisenak.pdfIn PDF document text
- http://punaide.com/userfiles/files/38864130827.pdfIn PDF document text
- https://cli-kh.com/uploads/files/202109121632162884.pdfIn PDF document text
- http://www.astmalek.cz/obrazky/file/21048846055.pdfIn PDF document text
- http://toyotarent.kr/FileData/ckfinder/files/20210921_15903540D227C07E.pdfIn PDF document text
- http://fpempresa.cen.es/userfiles/files/fabotefejiloresawinovuse.pdfIn PDF document text
- http://www.sbawerribee.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/161372be19d18c---90403767360.pdfIn PDF document text
- https://eghamatkade.com/basefile/eghamatkadecom/files/24799218469.pdfIn PDF document text
- https://ecableapp.com/FCKeditor/FCKimgUpload/file/71316653133.pdfIn PDF document text
- http://gt-outillages.fr/ressource/site-image/files/46470747414.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=android+virtual+machine+macPDF 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_off0000b96c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB96C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d183.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD183 | 10612 bytes |
SHA-256: b1be4483cd136b4809122c4b4447b18142d99d9c23d267ff299d70f1714e15a4 |
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font_02_sfnt_off0000e994.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE994 | 18636 bytes |
SHA-256: 965745b222c736386cc2bc8c90833ec7ac221c50c4291271187267df5a9a2aeb |
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