MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. It contains numerous links, many pointing to compromised CMS upload directories or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics further supports this. The document body is unreadable, but the heuristics and URLs strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://castilloexterior.net/ckfinder/userfiles/files/bunimutari.pdf In PDF document text
- http://musik-fachberatung-neumarkt.de/images/uploadedimages/file/88967009463.pdfIn PDF document text
- http://didaconcept.com/admin/fckeditor/file/punudupisugofowu.pdfIn PDF document text
- https://vieclamday.com/userfiles/file/wufomebovenopanenof.pdfIn PDF document text
- http://a-b-i-s.net/layout/bilder/file/38642673490.pdfIn PDF document text
- https://www.jemelectric.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140b08ec1844---kapapewadux.pdfIn PDF document text
- http://dabien.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/1612f452381732---gasugemunegefix.pdfIn PDF document text
- http://www.radiopopiatej.com/wp-content/plugins/formcraft/file-upload/server/content/files/161430c23320e6---12151990777.pdfIn PDF document text
- https://popcouncilinstitute.org/wp-content/plugins/super-forms/uploads/php/files/ea7f9e3612e5629ed180d6a5c99854eb/kupigijezetevozebonuxepu.pdfIn PDF document text
- http://ksnjl.com/userfiles/files/rosalupis.pdfIn PDF document text
- http://pegasomeeting.medcoast.net/ckfinder/userfiles/files/sutunaj.pdfIn PDF document text
- http://hairfibers24.com/upload/file/19748984841.pdfIn PDF document text
- http://beccaro.it/userfiles/files/92586189939.pdfIn PDF document text
- http://primebrokeragetx.com/ckfinder/userfiles/files/16424390700.pdfIn PDF document text
- http://www.caslyn.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1612ff03eb724a---83951240924.pdfIn PDF document text
- http://ytlcases.com/userfiles/file/ninaduji.pdfIn PDF document text
- http://kirche-treuen.de/UserFiles/File/96237279980.pdfIn PDF document text
- http://lse.hu/userfiles/file/nilepeka.pdfIn PDF document text
- https://buddingheights.org/wp-content/plugins/formcraft/file-upload/server/content/files/16133b0a4f081a---99044211028.pdfIn PDF document text
- http://4x4autok.hu/userfiles/files/jilaxepulalukevil.pdfIn PDF document text
- http://lyzebrno.cz/userfiles/file/40557441666.pdfIn PDF document text
- https://dehaventransportation.com/home/de/public_html/ckfinder/userfiles/files/zosurajevadanenijeva.pdfIn PDF document text
- https://bem-sa.com/img/file/33380942138.pdfIn PDF document text
- https://titishop.co/upload/files/rabak.pdfIn PDF document text
- http://chiaranannini.com/userfiles/files/tiboku.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=among+us+free+play+websitePDF 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_off0000e341.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE341 | 17540 bytes |
SHA-256: 81a1ee2121df08ca782bbcda40b242a6c33a1340092a09ba344a681f7490567a |
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font_01_sfnt_off0001112d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1112D | 11124 bytes |
SHA-256: 9827a99976698439dc6b1ccb994189f6c126c0ceb4aeae6147fc4c74514941dd |
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font_02_sfnt_off00012b05.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12B05 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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