MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains embedded JavaScript and is flagged by ML classifiers and ClamAV as malicious. The 'SE_BROWSER_INSTALL_LURE' heuristic indicates the document's content likely prompts the user to install a browser extension or update, a common tactic for credential theft or malware delivery. The embedded JavaScript is likely responsible for executing the malicious payload or redirecting the user to a malicious site.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
Heuristics 7
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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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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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://szyuangang.com/UserFiles/file///73476892734.pdf In PDF document text
- https://matratva.in/userfiles/file/53022836633.pdfIn PDF document text
- http://xn--80aiddhbkcq5bcaz.xn--p1ai/upload/files/tibekazofi.pdfIn PDF document text
- http://sun-dr.com/uploads/files/202109172158105024.pdfIn PDF document text
- http://bursaceyizgelinlik.com/images_upload/files/58617135692.pdfIn PDF document text
- http://co-wemart.com/careeruserfiles/file/98635473126.pdfIn PDF document text
- https://stcc-sa.com/motakamel/Ups/files/gifivilegeje.pdfIn PDF document text
- http://imbirimbir.ru/files/buduvu.pdfIn PDF document text
- http://lignumweb.com/site/webroot/uploads/files/30731412964.pdfIn PDF document text
- http://casaledellasignora.it/userfiles/files/witas.pdfIn PDF document text
- https://magicdiscoradio.hu/userfiles/file/68426330341.pdfIn PDF document text
- http://sashtraayurveda.com/ckfinder/userfiles/files/gaxisetinamadukotanaratem.pdfIn PDF document text
- http://brmxn.com/userfiles/file/20210906081003_hudtaj.pdfIn PDF document text
- https://www.histoiresdegroupes.com/wp-content/plugins/formcraft/file-upload/server/content/files/16160e23f63c3e---33247072618.pdfIn PDF document text
- http://pzhjintai.com/upload/files/55495278957.pdfIn PDF document text
- http://lagostena.it/userfiles/files/burogesuvobe.pdfIn PDF document text
- https://minervatech.work/js/ckfinder/userfiles/files/75149080040.pdfIn PDF document text
- https://zemtechnika.lt/public/site/0files/junedarivimazuxukino.pdfIn PDF document text
- http://ahxxzx.com/userfiles/202109/file/24404206155.pdfIn PDF document text
- http://mazurubezpieczenia.pl/zdjecia/fck/file/sizowewijod.pdfIn PDF document text
- http://kurskodkb.ru/page_edit/_samples/userfiles/files/tiximebez.pdfIn PDF document text
- http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1612f98f4f0a7a---latisakidaredawirikodoki.pdfIn PDF document text
- http://gildiamasterov.ru/userfiles/file/66229147715.pdfIn PDF document text
- http://dawahcity.com/userfiles/file/sunowekuki.pdfIn PDF document text
- http://feedproxy.google.com/~r/Xvkpad/~3/tgwjJlsMqHc/uplcv?utm_term=rival+chocolate+fountain+owners+manualPDF 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_off0000e0f6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE0F6 | 19416 bytes |
SHA-256: 1e43d9a73fc0d2c7c058b325506858e7a284f47aee87109946589d1402d841a3 |
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font_01_sfnt_off0001123a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1123A | 10896 bytes |
SHA-256: 938664d48578a1c85c7553f4d77735726e773c3e29546cca55287b094a88ba1f |
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font_02_sfnt_off00012b5e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12B5E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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