MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file contains embedded JavaScript, a common technique for executing malicious code within PDFs. This script likely redirects the user to a network of external URLs, as indicated by the numerous PDF_URI and EMBEDDED_URL heuristics. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic further suggests these URLs form a link farm designed to obscure the ultimate destination or spread malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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 http://msiutilities.biz/documents/14383756361.pdf In PDF document text
- https://medius.sk/userfiles/file/16946877661.pdfIn PDF document text
- http://huzatfokozo.hu/editor_up/61565054391.pdfIn PDF document text
- https://elitstroycraft.ru/source/file/navibozotawisoromozug.pdfIn PDF document text
- http://uspeh-kursk.ru/ckfinder/userfiles/files/74058777387.pdfIn PDF document text
- https://christianbelieversmatrimony.com/web/christiansbelieversmatrimony/photos/ckeditor/files/fibim.pdfIn PDF document text
- https://tepihtrava.rs/files/85225831670.pdfIn PDF document text
- http://evohome.pl/userfiles/file/rogujatanetore.pdfIn PDF document text
- http://lexen.ca/userfiles/files/70166159101.pdfIn PDF document text
- https://anna-bel.com/app/webroot/files/userfiles/files/75621301002.pdfIn PDF document text
- http://security-m.jp/tool/images/file/20471867761.pdfIn PDF document text
- http://zopos.zohukum.com/ckfinder/userfiles/files/batubebigokipokojek.pdfIn PDF document text
- https://jamuiboe.com/webroot/upload_media/68845221195.pdfIn PDF document text
- http://se-ty.ru/uploads/userfiles/file/36599516661.pdfIn PDF document text
- https://championsforchildren.org/wp-content/plugins/super-forms/uploads/php/files/6caf9b7bae914662f084687b488433f2/zatopareretoba.pdfIn PDF document text
- http://www.msjcongregation.org/www/js/ckfinder/userfiles/files/90302766330.pdfIn PDF document text
- https://www.spoton.pet/wp-content/plugins/super-forms/uploads/php/files/jqqrk73h1kdlrc18lv98nt90l0/gunefavidatetojupo.pdfIn PDF document text
- http://weiken-rc.com/upload/files/karazenedonivapujogafin.pdfIn PDF document text
- http://lisaarkinlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/batozexezipedubivi.pdfIn PDF document text
- http://skkl.cn/filespath/files/20210914055403.pdfIn PDF document text
- https://www.colegiodesafio.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/1613093a56d7f3---49178332249.pdfIn PDF document text
- http://handgun.ee/media/file/76828710321.pdfIn PDF document text
- https://bike-accessories.supersites.gr/content/ckfinder/files/vosudipuxojejofubes.pdfIn PDF document text
- https://cartolmania.it/file/dakowewusufelekuv.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=zg+survival+modPDF 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_off0000c321.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC321 | 19104 bytes |
SHA-256: 9dc3ef2e1de7cd877c9761913ed7a1faca9b90634b132eb998554888fecb73c3 |
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font_01_sfnt_off0000f317.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF317 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010b2e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B2E | 10388 bytes |
SHA-256: 43eb5d6a666da7a974a6ab7c8cb0e3192796f7e7c8e5e6042a62b59d96e9a5d2 |
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