MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to compromised CMS upload directories or disposable hosting, suggesting a link farm designed to distribute malicious content or manipulate search engine results. The primary function appears to be directing users to external, potentially harmful, sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
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://fjsxsx558.com/upload/files/4085263313.pdf In PDF document text
- http://cnokorea.com/userfiles/file/66976670777.pdfIn PDF document text
- https://inprovitmexico.com/ckfinder/userfiles/files/mewarorolimakekaw.pdfIn PDF document text
- http://www.onekaddy.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613932d75b513---40468015374.pdfIn PDF document text
- http://hvpeds.com/upload/contents/file/56033533461.pdfIn PDF document text
- http://aaexpansionjoint.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613809aad4e42---zamajekakixatiz.pdfIn PDF document text
- http://ondamarinarest.com/upload/files/15945276260.pdfIn PDF document text
- https://sysyanginguvenlik.com/uploads/files/mivugejafali.pdfIn PDF document text
- https://visualmotion.nl/uploads/file/vewivodeligamiwelotizof.pdfIn PDF document text
- https://cfi-registration.org/buzzboxgift/img/userfiles/files/pawujavijo.pdfIn PDF document text
- http://holmeslawfirm-iowa.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/wifetidepogixipularaz.pdfIn PDF document text
- http://www.louisefarmersmith.com/admin/ckeditor/ckfinder/userfiles/files/tofonoduxukidamarefegibot.pdfIn PDF document text
- http://drvision.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613cef4509311---waredeva.pdfIn PDF document text
- http://derp74.fooden.com/UserFiles/files/relakoxof.pdfIn PDF document text
- http://ipceurope.be/assets/file/jimizirubet.pdfIn PDF document text
- http://ustunongel.com/image/files/bimevoxezu.pdfIn PDF document text
- https://m-astar.com/UserFiles/files/19772458444.pdfIn PDF document text
- https://ismet.com.br/ckfinder/userfiles/files/55567818305.pdfIn PDF document text
- http://zensushialiso.com/uploads/files/73330337490.pdfIn PDF document text
- https://binhruamuinanobac.com/wp-content/plugins/super-forms/uploads/php/files/5igdu8u50r1s949doff8vtkqjt/89301641929.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=crear+fondos+de+pantalla+para+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_off0000dfb3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDFB3 | 10520 bytes |
SHA-256: 9adef7b8320854059975d2105adb7b1a2ac7b7aedfa3d9c8ea1ffad268f0cac5 |
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font_01_sfnt_off0000f7c5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7C5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010fd7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FD7 | 19552 bytes |
SHA-256: a74ddfac352d09e4daa99afa9e3d06d8278f8d3a1e9ab477d737adeefd22c2d6 |
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