MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous links, many of which point to compromised WordPress upload directories or disposable hosting, indicating a link farm designed to redirect users to potentially malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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 http://dobrasekacka.cz/userfiles/file/26933422936.pdf In PDF document text
- http://matchonusa.com/uploads/files/ganudota.pdfIn PDF document text
- http://www.akutrans.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e53c2b12b8---xefasufukuwusikekuvi.pdfIn PDF document text
- http://jagodkaprzedszkole.pl/userfiles/file/37423870260.pdfIn PDF document text
- https://tommytest.dish1314.com/data/html_editor/files/dakifeginatuxelexapumidi.pdfIn PDF document text
- http://fese.in/ienupdimages/images/files/refitozojakogom.pdfIn PDF document text
- http://gr-chem.com/upload/files/69092070803.pdfIn PDF document text
- http://locke-3c.tw/uploads/files/202109201303022720.pdfIn PDF document text
- http://plaschke-partner.com/uploaded/file/gurinajebaduko.pdfIn PDF document text
- http://www.horakgolf.cz/ckfinder/userfiles/files/9127161206.pdfIn PDF document text
- https://trimix.bg/UserFiles/File/jogun.pdfIn PDF document text
- http://sk4education.com/ckfinder/userfiles/files/67142841000.pdfIn PDF document text
- http://qianxi.cn/filespath/files/20210901211002.pdfIn PDF document text
- http://xn--12cmi2byac9cdhd0hra6d7bxkwbgj1gch.com/user_img/files/kafupaduzusinegugivoziw.pdfIn PDF document text
- https://istocdukkan.com/userfiles/files/sokono.pdfIn PDF document text
- https://www.adcgrain.com/wp-content/plugins/super-forms/uploads/php/files/fd4c7934a7bf55dd00aa3567d33abcea/35603224937.pdfIn PDF document text
- http://vietsonplastic.com/uploads/userfiles/file/85582423253.pdfIn PDF document text
- http://dioblina.eu/userfiles/file/65981221490.pdfIn PDF document text
- https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/44a3cff0266ee0424b6739c1fcce48e3/2778679592.pdfIn PDF document text
- https://laughteronlineuniversity.com/images/upload/files/21903338166.pdfIn PDF document text
- http://kleinschadenexpert.de/userfiles/file/pobidutarogomuzalejifoku.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=how+to+find+numbers+you+deleted+on+androidPDF link annotation
- http://zs.tom.ru/jsplugins/ckfinder/userfiles/files/48100002601.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_off0000b5ec.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB5EC | 17884 bytes |
SHA-256: 10adc463cf8c7df2a76e70aaf59fb31ac6d901d5026289e20400676ed0cea309 |
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font_01_sfnt_off0000e3fd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE3FD | 10944 bytes |
SHA-256: d4727ab9bb1ed8a5c9361f84c270302a2b6639a0187a6381610743ce546e4c48 |
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font_02_sfnt_off0000fd5c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD5C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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