MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file is identified as malicious by ClamAV and an ML classifier. It contains numerous URLs pointing to compromised WordPress upload directories, suggesting a link farm designed to host or redirect to malicious content. The PDF structure and embedded URLs indicate a phishing or redirection attempt, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9966
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://www.cir.cloud/wp-content/plugins/formcraft/file-upload/server/content/files/16089e29bb7823---40004746137.pdf
- http://www.medicalalliedtraining.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608caf507c25b---17813777740.pdf
- https://duext.com/wp-content/plugins/super-forms/uploads/php/files/9345ce4616e7c23ed70eb1cf2ae8a7c8/23036262313.pdf
- https://cr2tek.com/userfiles/Proj_Name//files/87137212953.pdf
- http://market-oborudovanie.ru/upload/file/56225394133.pdf
- https://dusunceokulu.net/resimler/files/melenuzewedamupilure.pdf
- http://pansophers.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c2fba96205c---31458850545.pdf
- https://veritiesinstitute.com/wp-content/plugins/super-forms/uploads/php/files/b65a319eec38438a099ee78d4c97bdec/96642509339.pdf
- https://investainternational.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609dac3c2e082---rufumokivasevabav.pdf
- http://multiseal.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/16073c0c243130---13097614657.pdf
- http://nacyc.jp/Upload/file/vazoviredebakemu.pdf
- https://sharzh-ufa.ru/wp-content/plugins/super-forms/uploads/php/files/b713321bbb1e3da34910f0b5ccd15734/73930907870.pdf
- http://gadkowski.pl/repository/filemanager/file/rimamunuletuwim.pdf
- http://alexhoffordphotography.com/temp/files/file/masepasaxilusijadise.pdf
- https://borderpak.com/wp-content/plugins/super-forms/uploads/php/files/721eacf176d82b5126b28006cf3d3533/tapima.pdf
- https://sumangold.net.vn/wp-content/plugins/super-forms/uploads/php/files/7275iqt9251q9f3p90jd9a1ak9/vedugevodisowoxifaju.pdf
- http://www.viksexteriors.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079ff6ff329b---kejazurarufukij.pdf
- https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/b7b53f6e2be0349f9e1d0af5b9f46d90/17830320957.pdf
- http://agendatourvietnam.com/hinhanh/file/gigeva.pdf
- http://cocoal.com/uploads/file/kowaviturafomixibewaze.pdf
- https://interesttour.com/wp-content/plugins/super-forms/uploads/php/files/450d305d1d49d3fd5ba4f1fea1f3c078/wurelivasug.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=mycoplasmal+pneumonia+is+different+from+pneumococcal+pneumonia+in+that
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000112c6.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x112C6 | 16792 bytes |
font_01_sfnt_off00012add.bin62797cfa2faaee3fd23c9be771ad0ffc946bc5049ef048278b258fc2f6fcb738 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12ADD | 11092 bytes |
font_02_sfnt_off00014483.bindc33601c400b31c73becdd57f9759e1099687e1bf84c7f79d970ba6e597a295a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14483 | 18576 bytes |
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