MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous links, many pointing to compromised WordPress upload directories or disposable hosting, indicating a link farm designed to distribute malicious content or phish users. The ML classifier and ClamAV detection strongly support its malicious nature, classifying it as a phishing trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9988
Heuristics 6
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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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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 https://coretry.ru/uplcv?utm_term=kotlin+simpledateformat+example PDF link annotation
- http://tentauto23.ru/ckfinder/userfiles/files/bakok.pdfIn PDF document text
- https://hkpefa.org/editor_upload/file/98405956919.pdfIn PDF document text
- http://chemicalengineers.ie/images/44981974613.pdfIn PDF document text
- http://321eastern-thailand.com/userfiles/files/87287924902.pdfIn PDF document text
- http://svsteinfurth.de/radsportfiles/file/5472679717.pdfIn PDF document text
- http://malagi.pl/user-files/fck/file/mulorudaxugupuxiguv.pdfIn PDF document text
- https://www.lipca.com/ckfinder/userfiles/files/40148246434.pdfIn PDF document text
- http://myslizdrave.com/soubory/dopurafusuxitigakelov.pdfIn PDF document text
- http://www.hgekc.com/media/userfiles/file/11900282308.pdfIn PDF document text
- http://cosmosimpex.com/app/webroot/ckfinder/userfiles/files/jawenisoginida.pdfIn PDF document text
- https://kingwaterpure.com/ckfinder/userfiles/files/24430767536.pdfIn PDF document text
- http://jessie.vn/images/ckeditor/files/pejugopajavawusevodezeti.pdfIn PDF document text
- http://7m-shop.com/userfiles/file/85968089989.pdfIn PDF document text
- http://veszpremkosar.hu/_user/file/kexerowulavofo.pdfIn PDF document text
- http://kup-vino.cz/web/ckfinder/userfiles/files/97769374077.pdfIn PDF document text
- https://mtmhomeschool4art.com/mycms/uploadedimages/editorUploadedImages/file/97663256597.pdfIn PDF document text
- http://francescasciortino.it/userfiles/files/92063995420.pdfIn PDF document text
- http://ajivikafinance.com/userfiles/file/20407347921.pdfIn PDF document text
- https://esperanzadeavila.com/fotos/file/bowemudikekinirumatutal.pdfIn PDF document text
- http://maxitelt.no/wp-content/plugins/formcraft/file-upload/server/content/files/1613be80ca300b---8271091084.pdfIn PDF document text
- https://balance-global.com/wp-content/plugins/super-forms/uploads/php/files/2usii6udgp87t8pj7mekk955sq/kagiwinizeg.pdfIn PDF document text
- http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1613a6e362119a---25684688213.pdfIn PDF document text
- https://aiaciran.org/cache/fck_files/file/59581958504.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_off00015ae9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15AE9 | 10752 bytes |
SHA-256: af78f11a861d2f6bfc9d974608c6c0ed8c73c3d26a65f959fbc2b7a324dd7a74 |
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font_01_sfnt_off0001739a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1739A | 19060 bytes |
SHA-256: 86cab7f979847fa444fdc7d1a6c2a488709fb4cfd8a5e63e73e6d3bf272f6c49 |
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font_02_sfnt_off0001a5dd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1A5DD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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