MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains a link farm with numerous URLs pointing to potentially compromised websites or disposable hosting, designed to lure users into downloading further malicious content. The presence of multiple external URIs and a link farm heuristic strongly suggests a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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 http://entryexpress.online/chapter_images/files/napukemesu.pdf In PDF document text
- https://implantologie-deva.ro/app/webroot/files/userfiles/files/32559863512.pdfIn PDF document text
- https://flour.co.uk/ckfinder/userfiles/files/paviwagodosibotadaborajik.pdfIn PDF document text
- http://brenna-ski.pl/userfiles/file/10065823613.pdfIn PDF document text
- http://veewood.com/file_media/file_image/file/2746297390.pdfIn PDF document text
- http://mebel-moscow.com/content/xuploadimages/file/63955304880.pdfIn PDF document text
- https://rawoctane.com/uploads/file/naxukujila.pdfIn PDF document text
- https://vjlabor.pitscovn.com/uploads/Upload/files/nugixala.pdfIn PDF document text
- http://www.kindytennis.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613be92867181---jezijafujinajilorat.pdfIn PDF document text
- https://www.libyamonitor.com/sites/all/libraries/ckfinder/userfiles/files/toxazapasezotizoki.pdfIn PDF document text
- https://pt2-turbo-j3t.com/contents/files/24842720894.pdfIn PDF document text
- https://fanaf.org/article_ressources/file/87625205384.pdfIn PDF document text
- https://dulsuc.cl/userfiles/file/wezekinulelepatubuwo.pdfIn PDF document text
- http://stihoplet.by/upload/editor/files/626274059.pdfIn PDF document text
- http://www.siposferenc.hu/html/kevepowuzusimivasik.pdfIn PDF document text
- http://drentmedischadvies.nl/uploads/files/79877218541.pdfIn PDF document text
- http://winterwonderlandzundert.nl/uploadimages/files/72895170783.pdfIn PDF document text
- http://www.cuadernos.in/wp-content/plugins/formcraft/file-upload/server/content/files/1613c889ab3abd---mefamivodivufudidedere.pdfIn PDF document text
- http://www.theagentpipeline.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613523650cfdc---vurawomopukuzegej.pdfIn PDF document text
- https://genesisbehaviorcenter.com/wp-content/plugins/super-forms/uploads/php/files/87868e37ef7ad2709c5ee543c00c166c/xadafonuweg.pdfIn PDF document text
- http://jerseybankruptcylaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/45771934110.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=windows+10+bootable+files+free+downloadPDF 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_off0000dd5c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD5C | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f573.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF573 | 10740 bytes |
SHA-256: 88e97584cc3a7d8008a7da79b0f23a505a3a1b94d0fdd6530668e5600bc38ba3 |
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font_02_sfnt_off00010e54.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10E54 | 17468 bytes |
SHA-256: 1a4dae4c8e32de534d9e9ea65dea02c56b6e8083eb9445b69d11d7ea0bdfcfc0 |
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