MALICIOUS
82
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The presence of embedded JavaScript and a high number of external URIs, many pointing to potentially disposable domains, strongly indicates a malicious intent to redirect the user. The ML classifier also flagged this PDF as malicious with high confidence. The document's structure suggests it functions as a link farm designed to obscure the ultimate destination of the user's click.
Machine Learning
- Nyx PDF Classifier malicious score 0.9908
Heuristics 6
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://wroclawmodelshow.pl/ckfinder/userfiles/files/wubusugonupatidogewipusi.pdf In PDF document text
- http://giovanninociti.com/userfiles/files/zewolokol.pdfIn PDF document text
- http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130c25e85bff---museniwi.pdfIn PDF document text
- https://marljivo.hr/UserFiles/files/fidowowosup.pdfIn PDF document text
- http://careerpathrecruitment.com/swapscan/app/webroot/js/ckfinder/userfiles/files/tuseseterogozesigi.pdfIn PDF document text
- https://www.borzabadi.com/ckfinder/userfiles/files/nuxajudiro.pdfIn PDF document text
- https://ville-saintleonard.fr/pdf/48787378156.pdfIn PDF document text
- http://dogalakustik.com/depo/sayfaresim/file/lozevasusiwiguvigezerul.pdfIn PDF document text
- http://www.ettermanenterprises.com/ckfinder/userfiles/files/48773390077.pdfIn PDF document text
- http://simp-q.ru/userfiles/file/naputurosinonajipi.pdfIn PDF document text
- http://holmeslawfirm-iowa.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/vimuxudunuvetizinopurunet.pdfIn PDF document text
- http://harlit.com/ckfinder/userfiles/files/20210910_081215.pdfIn PDF document text
- https://www.pactforfamilies.org/ckfinder/userfiles/files/podixusirinadorip.pdfIn PDF document text
- https://casabresciani.it/uploads/file/badadesi.pdfIn PDF document text
- http://mamnonkitty.com/webroot/img/posts/files/gananezukebavuvureki.pdfIn PDF document text
- https://wildarium.com/ckfinder/userfiles/files/33179803281.pdfIn PDF document text
- https://victory-agency.com/wp-content/plugins/formcraft/file-upload/server/content/files/16142b4a2b270e---23458342899.pdfIn PDF document text
- http://pioneerbuzz.net/userimages/sozerimuv.pdfIn PDF document text
- http://langmoon.jp/js/upload/files/75736374090.pdfIn PDF document text
- http://2478.ru/admin/ckfinder/userfiles/files/zesavajetajixug.pdfIn PDF document text
- http://jfe.hk/userfiles/vujaziperazikikul.pdfIn PDF document text
- http://quimis.net/js/ckfinder/userfiles/files/27969649646.pdfIn PDF document text
- http://www.impactit.in/ckfinder/userfiles/files/64271996680.pdfIn PDF document text
- http://stl-hk.net/userfiles/xofovoridul.pdfIn PDF document text
- https://maftplayer.net/calisma2/files/uploads/60846099732.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=best+pubg+booster+apkPDF link annotation
- http://s250801404.onlinehome.fr/img/uploaded/file/18842916658.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c235.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC235 | 10572 bytes |
SHA-256: 993958d28ba96fbb586fced3ee623107b90448531994ed10fd4ae54c05c37221 |
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font_01_sfnt_off0000da55.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA55 | 18312 bytes |
SHA-256: 694cbf3554f88ce0cb7a4c0f4b5b994158e7da7611eb766fdf23b69472f22080 |
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font_02_sfnt_off000109cd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x109CD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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