MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and multiple external URIs, many of which point to disposable hosting and are part of a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to trick users into downloading malware disguised as legitimate software. The embedded JavaScript is a common technique for executing malicious code or redirecting users to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9919
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://coretry.ru/uplcv?utm_term=adobe+lr+premium+apk PDF link annotation
- http://allefrgycg.news-read.com/upload/files/mamenonigikaxedar.pdfIn PDF document text
- https://stoneappeal.in/FCKeditor/file/resavijisafiputofoliwut.pdfIn PDF document text
- http://www.artefuoricentro.it/js/lib/ckfinder/userfiles/files/3179667384.pdfIn PDF document text
- https://www.gs-gleichmann.de/wp-content/plugins/formcraft/file-upload/server/content/files/161305f0c337fa---gitenamikurapeg.pdfIn PDF document text
- http://ymmicro.com/files/files/55952480953.pdfIn PDF document text
- https://www.artikel238.nl/emmwebbit/resources/ckfinder/userfiles/files/25925819199.pdfIn PDF document text
- https://saigonservices.vn/images/uploads/files/39842406067.pdfIn PDF document text
- https://myvideoclasses.com/ci/userfiles/files/97526044444.pdfIn PDF document text
- http://le-lemniscus-incandescent.fr/ckeditor/upload/files/mevesevotenopaxuma.pdfIn PDF document text
- http://www.hzkontejnery.cz/ckfinder/userfiles/files/fiderofuvudukikulitasu.pdfIn PDF document text
- https://www.hotel-palladium.gr/wp-content/plugins/super-forms/uploads/php/files/r8lu13kidbgcuovo70ed6h39ne/4583447128.pdfIn PDF document text
- http://omonetach.pl/foto/ilustracje/file/5801944095.pdfIn PDF document text
- https://terminal.hr/userfiles/file/68769024479.pdfIn PDF document text
- http://www.hkrns.org.hk/ckfinder/userfiles/files/99084492819.pdfIn PDF document text
- http://yigang-lin.com/uploads/files/202109011051021890.pdfIn PDF document text
- http://synergienetwork.net/userfiles/file/21560196041.pdfIn PDF document text
- http://clubselectionvoyages.com/images/file/97008301607.pdfIn PDF document text
- http://www.anclupnapoli.it/userfiles/file/73813172106.pdfIn PDF document text
- http://abwcoliseum.com/uploads/files/woxowixoxununagu.pdfIn PDF document text
- http://sk4education.com/ckfinder/userfiles/files/48911354813.pdfIn PDF document text
- https://ysh.my/userfiles/file/vafuvaxawog.pdfIn PDF document text
- http://naszemotyle.natura2000.pl/imgturysta/files/kuferalonajok.pdfIn PDF document text
- http://oasishs.com/uploads/files/20210903_040843.pdfIn PDF document text
- http://xn--oy2b9bv81anouola.com/upload/file/202109082346419636.pdfIn PDF document text
- http://hyundaihungthinh.com/uploads/images/files/sunizul.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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b75b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB75B | 1680 bytes |
SHA-256: 6c08887b596ecb472c5a0482df8c2f828d83fc5b5d16111ed0caa1fced1b35dc |
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font_01_sfnt_off0000bf58.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBF58 | 10496 bytes |
SHA-256: 3bf9361cbaef3181ac7a3f213d786892bb62a1df450ab05b3503396839716fba |
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font_02_sfnt_off0000d6e9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6E9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_03_sfnt_off0000eefb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEEFB | 20744 bytes |
SHA-256: 296755d8142f6ba7c5e48b681f6674ffebe4d802e4d8a53135bb74ebd41b74cd |
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