MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, with numerous URLs pointing to compromised WordPress sites, likely intended to lure users to malicious content. The ML_NYX_PDF_MALICIOUS and CLAMAV_DETECTION heuristics strongly support the malicious classification.
Machine Learning
- Nyx PDF Classifier malicious score 0.9960
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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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://primeodontorj.com/wp-content/plugins/super-forms/uploads/php/files/ab0fbaf24a79bf9e648dd0c1c6c2d6d3/laximuxazikonu.pdf In PDF document text
- https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/vh4vfqleecgjus4a907fkqs6vo/54941707858.pdfIn PDF document text
- http://oryginalnedekoracje.pl/userfiles/file/sofamufidapividipuzisud.pdfIn PDF document text
- http://opakowania-loga.pl/zdjecia/fotki/file/sisosaxusupev.pdfIn PDF document text
- http://suachuadienlanhhoaphat.com/hinhanh_fckeditor/file/26262186000.pdfIn PDF document text
- http://studiotecnicobonoli.com/userfiles/files/92443481456.pdfIn PDF document text
- http://alhambra.kopanramen.com/uploads/files/kajogevibowaf.pdfIn PDF document text
- https://inchiriereelicoptere.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161444be5bb830---duridazizupulanudusunejaj.pdfIn PDF document text
- https://vmkstroi.ru/wp-content/plugins/super-forms/uploads/php/files/b477b0bf4020e5ff68d2c78374334141/ketukoratoraxuvekudow.pdfIn PDF document text
- https://shiokuda2.com/contents/files/25310349319.pdfIn PDF document text
- http://ustunongel.com/image/files/17574251712.pdfIn PDF document text
- http://reclaimsplus.com/wp-content/plugins/super-forms/uploads/php/files/e0c94f532f10dfc989819af96ecd799e/63972968767.pdfIn PDF document text
- http://hoaisonland.vn/upload/files/10526279174.pdfIn PDF document text
- http://happyland-nsk.net/ckfinder/userfiles/files/68610558852.pdfIn PDF document text
- http://mail.me.ntou.edu.tw/ckfinder/userfiles/files/20210918_021021.pdfIn PDF document text
- http://simonide.org/userfiles/file/87144934538.pdfIn PDF document text
- https://medpressa.ru/files/file/76547711066.pdfIn PDF document text
- https://pnlcoach.com/misc2/file/In PDF document text
- http://bostoncake888.com/UserFiles/files/dexupifiwokobewuxiketunav.pdfIn PDF document text
- http://vdavloeren.be/userfiles/files/fileguwuxojumoved.pdfIn PDF document text
- http://tea-ra.com/user_data/upload/save_image/files/76028834082.pdfIn PDF document text
- https://tl-systems.hu/files/files/ketofovivi.pdfIn PDF document text
- https://tommytest.dish1314.com/data/html_editor/files/36165260721.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=how+to+draw+darth+vaderPDF 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_off0000d59c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD59C | 10080 bytes |
SHA-256: 0bf288cd177aad68047a1e62ab448fd393f9439600336d37e788725b80112e8f |
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font_01_sfnt_off0000ec29.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC29 | 17876 bytes |
SHA-256: cf1903edf52d22c9ce865d7cd8959e1e25dc4373af2ea521fecf25f5e64ad09e |
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font_02_sfnt_off00011a42.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A42 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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