MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link farm pointing to multiple compromised WordPress sites, which in turn host other PDF files. This structure suggests a phishing or malware distribution campaign. The ClamAV detection and ML classifier strongly indicate malicious intent, likely related to phishing or trojan delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9952
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://mfplus.ba/wp-content/plugins/formcraft/file-upload/server/content/files/1607e446f70557---98807290251.pdf
- https://www.thecandystoresudbury.com/wp-content/plugins/super-forms/uploads/php/files/tmb3ptr0l5j4bij9a7etv015db/30623223659.pdf
- https://vaytieudungtragop.com.vn/wp-content/plugins/super-forms/uploads/php/files/bc5qv80p94ddvu9aohj3e20lqa/nawegugiwona.pdf
- http://www.movingintofreedom.com/wp-content/plugins/formcraft/file-upload/server/content/files/160982e118e5ee---terovofebufanuzuputoworo.pdf
- https://hartwellcook.com/wp-content/plugins/super-forms/uploads/php/files/b5bf4227f82b145232f0588294f7ddb4/53420412916.pdf
- http://wskinbody.com/data/boardData/files/retomofeze.pdf
- https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ba690492937---mugemoduxotebevosugip.pdf
- https://discoverapartmentsforrent.com/wp-content/plugins/super-forms/uploads/php/files/8ec94e7db1343cca2876c8e36ddaaa87/46806014273.pdf
- https://masini-de-ambalat.ro/images/userfiles/76042783162.pdf
- https://solidpractise.com/files/userfiles/file/97280764226.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16093fc14b66d3---digizidisojeguzo.pdf
- http://begemot-rus.com/uploadfiles/file/2021070609320973499.pdf
- http://www.redactordecontenidos.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1607211f16d137---belivi.pdf
- https://247christianity.org/fckeditor/userfiles/file/dexipixesakixovifez1622627670.pdf
- http://doks-films.com/pcms/content/file/refemelogenisiserezugiza.pdf
- https://wavesmaroochydore.com/wp-content/plugins/super-forms/uploads/php/files/bb6uuun7laft70sr86envukh1u/juxopupikane.pdf
- http://www.191seo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607868f06497b---12072229454.pdf
- https://www.simplythebestevents.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160a9b0fa77341---77681383607.pdf
- https://www.pietri-automobiles.com/wp-content/plugins/super-forms/uploads/php/files/473caalmj6rdlar59g1rf1t4e1/finafogezudorifu.pdf
- https://pinpointfeedtech.com/ckfinder/userfiles/files/piwirupobipovik.pdf
- https://limpjet.com.br/wp-content/plugins/super-forms/uploads/php/files/78ef594dbe12166b36a14c4c62a271ca/vinogusedu.pdf
- https://pikewallis.no/wp-content/plugins/formcraft/file-upload/server/content/files/160c70f664119a---66384186880.pdf
- https://burmesecatclub.nz/wp-content/plugins/super-forms/uploads/php/files/a951fb1a0eec6dd08cc173eba138f310/tuvidepabevibavodel.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=percy+jackson+and+the+heroes+of+olympus+pdf
- 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_off0000f0f3.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0F3 | 16792 bytes |
font_01_sfnt_off00010905.bin93f7ab6a65fe209e8ef9e4f24dd9cf0cdd3f7d30c131fc23346c352bab3084ca |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10905 | 24180 bytes |
font_02_sfnt_off00014134.bin307b2a1a83694440b57c2b278f7bac0d43daa658edd62b5ef7357cf08ec25f5c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14134 | 11228 bytes |
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