MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The sample is a PDF document flagged by ML classifiers and ClamAV as malicious. It contains a link farm pointing to various PDF files hosted on potentially compromised or disposable domains, suggesting a phishing or malware distribution attempt. The presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics indicates a deliberate effort to obscure the true malicious destination. No scripts were extracted from this sample.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://nevisnews.com/userfiles/rikerozapexuxivitifat.pdf In PDF document text
- http://vasekurzy.cz/userfiles/file/vutenevirudometifenore.pdfIn PDF document text
- http://www.saletime.gr/admin/fckfiles/file/3293586301.pdfIn PDF document text
- https://www.liftechforklifts.com.au/application/third_party/ckfinder/userfiles/files/bubagoral.pdfIn PDF document text
- http://avandcie-automation.com/ckfinder/userfiles/files/94350701071.pdfIn PDF document text
- http://project-lovcen.me/userfiles/file/32090729008.pdfIn PDF document text
- http://jerseybankruptcylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/19791855663.pdfIn PDF document text
- http://chickendaylacrescenta.com/uploads/files/wisuxamavekatevofowufela.pdfIn PDF document text
- http://surtek.biz/image/files/20150404_162202.pdfIn PDF document text
- http://kamkmori.cz/ckfinder/userfiles/files/zolizotulikafavusubaribog.pdfIn PDF document text
- http://weiddy.com/uploads/files/202109230927052532.pdfIn PDF document text
- https://ginecologmuresan.ro/ckfinder/userfiles/files/55999544648.pdfIn PDF document text
- http://avatars.ru/userfiles/file/lelukojejifozedewijubu.pdfIn PDF document text
- https://mediabandit.com/wp-content/plugins/formcraft/file-upload/server/content/files/161374e430f9c6---dugotakap.pdfIn PDF document text
- https://essuances.com/ckfinder/userfiles/files/bejinogi.pdfIn PDF document text
- https://www.enviedecrire.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d61c493ddd---wedumuradapaf.pdfIn PDF document text
- https://firesystem.ro/imagini_ws/2051215117.pdfIn PDF document text
- http://bronnicy.inhome360.ru/admin/ckfinder/userfiles/files/gifoduforogizapakevo.pdfIn PDF document text
- https://gauravkankariya.com/wp-content/plugins/super-forms/uploads/php/files/02220c10b513a21a8a91b03d007126a5/85797593971.pdfIn PDF document text
- http://samtekelektrik.com/files/97314710242.pdfIn PDF document text
- https://episcopiaoradiei.ro/files/48806392776.pdfIn PDF document text
- http://wideanglepackaging.com/ckfinder/userfiles/files/57511606640.pdfIn PDF document text
- http://webcertain.asia/contentupload/fckeditorUploads/organization_/file/mopafigob.pdfIn PDF document text
- http://www.cargeacrew.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1614db22bcf4cb---78705820194.pdfIn PDF document text
- http://songhakbbq.com/uploads/files/637909280.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/3vuEKuznOb8/uplcv?utm_term=download+football+games+for+androidPDF 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_off0000b4d8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB4D8 | 14892 bytes |
SHA-256: ffe91584b96499ca3297e8ccbf4d2793cf118c7757d83ebf552a24e1f02044d0 |
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font_01_sfnt_off0000da7b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA7B | 10924 bytes |
SHA-256: 3d665ed2e8a7696832933e64a9108da89358d5950d7b0a87e4400fe962ee9ee4 |
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font_02_sfnt_off0000f39e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF39E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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