MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ClamAV and a machine learning classifier, indicating a high likelihood of malicious intent. The presence of embedded JavaScript and a large number of external links, many pointing to disposable domains, strongly suggests a phishing or malicious redirection campaign. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic further supports this, indicating the document is part of a link farm designed for SEO manipulation or malicious redirection.
Machine Learning
- Nyx PDF Classifier malicious score 0.9902
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://queure.ru/uplcv?utm_term=osu+on+macbook+air PDF link annotation
- http://kingsfci.com/userfiles/file/58419275229.pdfIn PDF document text
- https://srmhomes.com/images/bulk_images/files/76481135943.pdfIn PDF document text
- https://cardion.dk/gfx/fckimages/file/tunagudubugilawexebed.pdfIn PDF document text
- http://ge-mak.com/files/nirumejeninasurosos.pdfIn PDF document text
- http://tovicetour.com/FileData/ckfinder/files/20210905_FC2DDAAE1AA2A736.pdfIn PDF document text
- http://denis-lefebvre-services.com/fichiers/file/79037301641.pdfIn PDF document text
- https://ecotranslation.ca/upload/editor/file/10385350762.pdfIn PDF document text
- http://www.slappedtogether.com/editoruploadfiles/file/zigomexejix.pdfIn PDF document text
- http://fthyhs.com/resource/docContentImg/file/2021-09-12/d855014d8f0dc35154f0be4b100408bf.pdfIn PDF document text
- http://medtravel.lv/images/hand_uploaded/files/riwoz.pdfIn PDF document text
- http://www.de.ruben.pl/ckfinder/userfiles/files/bevubiwugomovunuzurebal.pdfIn PDF document text
- http://sirindhorn.net/upload/File/dinasenugavokunudutu.pdfIn PDF document text
- http://knowleangling.co.uk/ckfinder/userfiles/files/60970378780.pdfIn PDF document text
- https://bestcaps99.com/ckfinder/userfiles/files/xoxirat.pdfIn PDF document text
- http://ceomit.com/fckupload/file/jogexojixalabubo.pdfIn PDF document text
- http://sp2wronki.pl/fotki/fotki/file/tubisotexokemokutesutiw.pdfIn PDF document text
- http://finance-bulldog.cz/UserFiles/File/67017054317.pdfIn PDF document text
- http://www2.grupoksl.com.br/js/ckfinder/userfiles/files/9653963949.pdfIn PDF document text
- https://wupaojichangjia.com/d/files/44283291293.pdfIn PDF document text
- https://stcatherine.ac.ug/wp-content/plugins/formcraft/file-upload/server/content/files/161378dd798eae---lixijitumalemokejozada.pdfIn PDF document text
- https://motecx.com/images/file/xezevepubovexasexu.pdfIn PDF document text
- http://weddingdove.tw/uploads/files/202109091916551653.pdfIn PDF document text
- https://sproname.com/files/userfiles/files/83036574007.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 5
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e12b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE12B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f942.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF942 | 10472 bytes |
SHA-256: 6e4bf0d24ae1ca6d6669463cbf45cc4d7c24acc954db0418a5ead87599f57fd1 |
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font_02_sfnt_off00011107.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11107 | 16756 bytes |
SHA-256: 889f5f520b67be37452d959d50cc68e107604073b286b6b83bf743d0befc6d4b |
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font_03_sfnt_off0001291c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1291C | 1684 bytes |
SHA-256: 9c928bf144e3eec6b0e52ae2bba533670589b2228405e28e178bb89e049a64b1 |
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font_04_sfnt_off00013114.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13114 | 24316 bytes |
SHA-256: a766de84dfa7a19102936e2068dbfe990615535bfa76b88a46f73c7b88799197 |
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