MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The presence of embedded JavaScript and a high number of external URIs, coupled with a critical ClamAV detection and ML classifier flagging, strongly suggests malicious intent. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates a potential link farm designed to obscure the true destination. The embedded JavaScript is likely used to execute malicious actions or redirect the user.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://davnosti.ru/upload/gaxejubopelesuw.pdf In PDF document text
- http://vanharteyoga.nl/uploads/files/zazalimisuja.pdfIn PDF document text
- https://avantkart.com/wp-content/plugins/super-forms/uploads/php/files/k7b82a7ef59ailmme4ged3fi14/45317469083.pdfIn PDF document text
- http://greece-ex.com/images/blog/file/godasizomid.pdfIn PDF document text
- http://falerisztika.hu/tmp/22884364632.pdfIn PDF document text
- http://wine-paraphernalia.com/files/winep/_repo/file/vafev.pdfIn PDF document text
- https://chsins.tw/uploads/files/202109111731383557.pdfIn PDF document text
- http://elosc.com/upFile/file///ITX202109060223191529.pdfIn PDF document text
- https://korovin.org/site/img_ufiles/bumugejunabomefe.pdfIn PDF document text
- http://www.eatvirukai.lt/uploads/files/11205560269.pdfIn PDF document text
- https://wsbtitan.com/images/file/6003393919.pdfIn PDF document text
- http://thegioicamdo.com/upload/files/wewinu.pdfIn PDF document text
- http://greatnice.club/updatefiles/file/xutuduvas.pdfIn PDF document text
- https://medbillings.us/lightspeedweb1/file/ketesitupuga.pdfIn PDF document text
- http://chanakol.com/ckfinder/userfiles/files/gukofenovubatesunefuxa.pdfIn PDF document text
- http://gok-maciejowice.pl/js/ckfinder/userfiles/files/xuxawegala.pdfIn PDF document text
- http://zerosquareonline.com/file/22232003644.pdfIn PDF document text
- http://osstemcardiotec.com/files/fckeditor/file/649354345613e6f19c504e.pdfIn PDF document text
- http://ateliergermain.net/sites/default/files/file/dolagukano.pdfIn PDF document text
- http://idealthailand.com/file_media/file_image/file/dorakidexufuluxugelujalof.pdfIn PDF document text
- https://alcc.c-zentrix.com/ALCC/mail_attachments/multitenant-ws-01/1/1630976392.pdfIn PDF document text
- http://goodlack.cz/userfiles/file/391304058.pdfIn PDF document text
- http://dakhoanhanai.com/images/files/45466364535.pdfIn PDF document text
- http://como.gattinonimondodivacanze.it/themes/userfiles/files/58663427800.pdfIn PDF document text
- http://zakuskymoser.cz/www/ckfinder/userfiles/files/94878444917.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=is+67+prime+or+compositePDF 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_off0000c114.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC114 | 17128 bytes |
SHA-256: 796027515cf4c208bfc3fd09c4bbf572a7a1db6cd8acf97225d1514b5679797b |
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font_01_sfnt_off0000ecd9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xECD9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000104f0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104F0 | 10392 bytes |
SHA-256: 3533e934bab8de35630071c74dad0554cf8136be59a014ab6e0890072f1d77bf |
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