MALICIOUS
74
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, identified by the PDF_JS heuristic, which is a common technique for executing malicious code within documents. The ML classifier strongly flagged this sample as malicious. The embedded JavaScript likely redirects the user to a link farm, as indicated by the PDF_SEO_DISPOSABLE_LINK_FARM heuristic and the numerous unknown URLs extracted, suggesting a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9827
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://kangmeideyiliao.com/uploadfile/file///2021091118072698.pdf In PDF document text
- http://clearspace-design.com/CKEdit/upload/files/47634302898.pdfIn PDF document text
- https://galerieportelouise.be/userfiles/files/61916348319.pdfIn PDF document text
- https://renebeumer.nl/userfiles/file/pusopogo.pdfIn PDF document text
- http://www.nandomoraes.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1614d57ee7ce4e---vazaj.pdfIn PDF document text
- https://ozmutludokum.com/userfiles/file/kofudujamapotuxajimoz.pdfIn PDF document text
- http://formacio.fic.cat/uploads/file/lowepanimetowagatusox.pdfIn PDF document text
- http://dydlhx.com/upfiles/file///bebeterunejozirozerewe.pdfIn PDF document text
- https://festival-bg.com/media/ckuploads/files/lomexol.pdfIn PDF document text
- http://ez-surveying.com/htdocs/cljr/data/files/35933818239.pdfIn PDF document text
- http://zhengfutz.com/v15/Upload/file/2021910132664314.pdfIn PDF document text
- http://kanalizace-ul.cz/userfiles/file/bodotiradutilogedote.pdfIn PDF document text
- https://myhoorayhealth.com/wp-content/plugins/super-forms/uploads/php/files/6e141bc6fed1df17a4ed10ac041a7ba9/rizuwesutoveponiradunilul.pdfIn PDF document text
- http://studiostocchi.eu/userfiles/files/38843370975.pdfIn PDF document text
- https://kp-bs.ru/upload/files/86514611850.pdfIn PDF document text
- http://martonaroniskola.net/userfiles/file/30768467145.pdfIn PDF document text
- https://pasarangroup1.com/contents/files/58405147919.pdfIn PDF document text
- http://quetthe.com/upload/files/33551794482.pdfIn PDF document text
- http://ecohost.ru/pics/images/file/vikiwifobafemubugazebuz.pdfIn PDF document text
- https://girilawfirm.com/content_files/files/82012521915.pdfIn PDF document text
- http://sake2metustin.com/uploads/files/dumelafamagewujawonit.pdfIn PDF document text
- http://maekalocal.com/Maeka/UserFiles/File/66054085324.pdfIn PDF document text
- http://suliaok.com/v15/Upload/file/20219931036299.pdfIn PDF document text
- http://taaltoetsvo.nl/userfiles/file/xukagujo.pdfIn PDF document text
- http://yer-krasnodar.ru/ckfinder/userfiles/files/vevelojajon.pdfIn PDF document text
- https://cyc-catering.pe/disac/userfiles/file/wutufexojusoxavexawigub.pdfIn PDF document text
- http://sun-marche.com/app/webroot/js/ckfinder/userfiles/files/sotimabugolowu.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=top+speed+moto+x3mPDF 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_off0000c17a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC17A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d98c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD98C | 17128 bytes |
SHA-256: da6c2c22c00886575a9d4de3ee3082879caa0d4237d867b283498ffcd5961ae3 |
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font_02_sfnt_off0001057f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1057F | 10288 bytes |
SHA-256: 669c5ba6cbb7c5e930ffa8e34c9ac1abfe202a453eff3d7ea193c31e03178fa3 |
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