MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a browser extension installation lure, indicating a social-engineering attack. It also includes numerous links to potentially compromised websites and a link farm, suggesting an attempt to redirect users to malicious content or phishing pages. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9860
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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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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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://proart.by/media/file/welet.pdf In PDF document text
- http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613da74a2cdde---zudapefuxoratiko.pdfIn PDF document text
- http://adhdadvisory.com/wp-content/plugins/formcraft/file-upload/server/content/files/161323f27871fd---ziwabatunakafepewiroba.pdfIn PDF document text
- http://benetalent.com/upload/files/38396799970.pdfIn PDF document text
- https://nbc.com.vn/ckfinder/userfiles/files/4265727972.pdfIn PDF document text
- https://invision.buzyhub.com/files/45512428854.pdfIn PDF document text
- https://inks.bg/userfiles/file/bevisirigunopodo.pdfIn PDF document text
- http://www.pattyn360.com/upload/forum/files/72326966816.pdfIn PDF document text
- http://bdsductri.com/upload/files/60756838266.pdfIn PDF document text
- http://bigdoughpizza.com/uploads/files/mirezu.pdfIn PDF document text
- http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/16140c5185bb04---15312449259.pdfIn PDF document text
- https://menokatea.com/ckfinder/userfiles/files/74563467609.pdfIn PDF document text
- http://redskap.ru/userfiles/file/8259182399.pdfIn PDF document text
- http://esistore.be/userfiles/file/48737633515.pdfIn PDF document text
- https://bengalroys.com/ckfinder/userfiles/files/dutemexu.pdfIn PDF document text
- https://primer-spb.ru/files/files/27013974272.pdfIn PDF document text
- https://journeywithmypet.com/ckfinder/userfiles/files/8720070643.pdfIn PDF document text
- http://fanti-fitness.pl/uploads/assets/file/sorifigakabuvenofe.pdfIn PDF document text
- https://tvsporedi.si/vsebina/jejeku.pdfIn PDF document text
- https://pustelnik-budownictwo.pl/ckfinder/userfiles/files/11256523227.pdfIn PDF document text
- https://gym-rectif.fr/ckfinder/userfiles/files/46231836984.pdfIn PDF document text
- http://rogersdesignhouse.com/uploads/files/63737692828.pdfIn PDF document text
- http://giasuthanhdat.vn/Images_upload/files/2998637237.pdfIn PDF document text
- http://samtle.net/ckupload/files/83839312809.pdfIn PDF document text
- http://viral-list-monster.com/ckfinder/userfiles/publics/files/betafakezetali.pdfIn PDF document text
- http://agppi99.pretty-match.com/upload/files/49864335261.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=how+do+i+mirror+my+phone+to+chromecastPDF 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_off0000e5e8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE5E8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fdff.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFDFF | 10924 bytes |
SHA-256: adbe78ec26f95e5f691a1cfc962c3d8a6c37a1b2ba0fcb7807975893ac98347e |
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font_02_sfnt_off00011724.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11724 | 17732 bytes |
SHA-256: 2ed5a9affb574b41fb5e5580963ec4f2321c5f720d0e8e880053f0c81fe1813d |
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