MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains numerous embedded URLs that point to various websites, many of which are hosted on compromised or disposable domains. This behavior is characteristic of a link farm designed to distribute malicious content or phish for user credentials. The ML classifier and ClamAV detection strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://coretry.ru/uplcv?utm_term=how+to+activate+voice+dialing+on+android PDF link annotation
- http://staropolski.net/Upload/file/wovoxulid.pdfIn PDF document text
- http://cageart.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16133cd2271a2f---56279430131.pdfIn PDF document text
- https://amatnieks.com/pictures/image/85482454322.pdfIn PDF document text
- https://www.phoenixdentalacademy.co.uk/wp-content/plugins/super-forms/uploads/php/files/683ffe4dd036f8c545dd63dc5980f3c3/pilogoke.pdfIn PDF document text
- https://namdolove.com/FileData/ckfinder/files/20210913_2A3EB3453A05789B.pdfIn PDF document text
- https://toscanafantastica.com/userfiles/file/jetefuselafevixipinogut.pdfIn PDF document text
- http://xszhuhai.com/uploadfiles/files/vajakigavemofor.pdfIn PDF document text
- http://konferencii.org/web/uploads/assets/file/66686734774.pdfIn PDF document text
- http://www.stadion-zarya.ru/ckfinder/userfiles/files/jafawisuvamatul.pdfIn PDF document text
- http://iamsong.vn/uploads/files/51883700046.pdfIn PDF document text
- https://booburger.myagenda.cz/pictures/editor/files/xalutilobad.pdfIn PDF document text
- http://tverzhilservis.ru/foktver.ru/ckfinder/userfiles/files/87409388898.pdfIn PDF document text
- http://yilbasipromosyonu.com/userfiles/file/luvinavizixibede.pdfIn PDF document text
- http://suportti.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133d44ab130e---61518051364.pdfIn PDF document text
- https://nghiepvu.udicmanpower.vn/uploads/news_file/36551879335.pdfIn PDF document text
- https://villanakarin.com/userfiles/files/jowunoxekupasa.pdfIn PDF document text
- http://dtjxbpzx.com/filespath/files/20210909071939.pdfIn PDF document text
- https://apra.pl/files/file/54368362307.pdfIn PDF document text
- http://cy2hand.com/userfiles/60803546237.pdfIn PDF document text
- http://www.johnrealestate.in/ckeditor-ckfinder-integration/uploads/files/64670322635.pdfIn PDF document text
- https://noddy.nu/images/file/dudev.pdfIn PDF document text
- http://condosworld.com/abisol1/userfiles/files/fudekirokeruw.pdfIn PDF document text
- https://mosaicopeoplecorporation.com/ckfinder/userfiles/files/lurabajaxadijuzozilog.pdfIn PDF document text
- https://1sis.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614b603b03eaf---sososupobixidadatutas.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_off0000dfb9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDFB9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f7cb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7CB | 18616 bytes |
SHA-256: f869bc254fad8fd26431b3347639bfcd3ce60dbc2fea73c570e4284e1b0cde0a |
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font_02_sfnt_off000127da.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x127DA | 10520 bytes |
SHA-256: 2b69fbb6173a6626a7137df287509bd34c0a89e06c45a2e3c65a76fec85d829d |
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