MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a link farm directing to numerous compromised WordPress upload directories and other disposable hosting sites. This pattern is indicative of a phishing or malware distribution campaign, where the document itself serves as a lure to external malicious content. The ML classifier and ClamAV detection strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9846
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 https://elitstroycraft.ru/source/file/pilefenonofofogurotokenep.pdf
- https://www.andrecampbell.ca/wp-content/plugins/super-forms/uploads/php/files/5216809711450a4dd1c6efdebd315286/sefabofanisemem.pdf
- https://sancarspune.com/wp-content/plugins/super-forms/uploads/php/files/16d0cddd0e019123839c4fcf693892ca/5046886118.pdf
- https://ecobox.eng.br/wp-content/plugins/super-forms/uploads/php/files/vej76grr3op6lllg8tafm0mpi3/xopuna.pdf
- https://afanasyev-design.ru/wp-content/plugins/super-forms/uploads/php/files/24ec0a2f2beaff3ba9b177ad006387c3/98686959065.pdf
- http://stylist.in.ua/wp-content/plugins/formcraft/file-upload/server/content/files/160812649503be---1921826610.pdf
- http://www.sensible-seeds-premium.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca33018e61---30508376290.pdf
- https://www.finestkindcharter.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a1c8fcb6554---46926842787.pdf
- http://haithuanphat.com/uploads/files/sifoxubarajekuve.pdf
- https://signaturetowerpune.com/wp-content/plugins/super-forms/uploads/php/files/qesi1v0h6cp4v3nabhb72kq1c5/vesuruk.pdf
- http://willtorock.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079290e5e644---gukek.pdf
- https://www.cukoyem.com.tr/wp-content/plugins/super-forms/uploads/php/files/k51hckslg7per05e4cp7bmlpf7/48569360545.pdf
- https://www.nrlandscapes.co.uk/wp-content/plugins/super-forms/uploads/php/files/e32e9a98f8d663c9998147c57eb55ddf/devosekebi.pdf
- http://yatros.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1606d690a70442---56900264942.pdf
- https://www.truesdalepainting.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8c500260a8---kinugakubogomipok.pdf
- http://www.hypnotiseur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab41e881c37---6450374097.pdf
- https://aquaticlandscape.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607619d5cc045---96377682690.pdf
- http://wallsfamilyreunion.com/clients/876683/File/jegasuzunijekud.pdf
- http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/08e0b6546e818540adfafa9a966c527c/3104721145.pdf
- https://gulertrafik.com/wp-content/plugins/super-forms/uploads/php/files/d5kthfnitm65kilug550injpo1/13816792447.pdf
- https://gmonlinestore.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cce0f9a9bcb---dadepekefosidevosedo.pdf
- https://kitapkaplama.com/upload/ckfinder/files/47725294658.pdf
- https://www.andeanskyline.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cd0b6615b1---63206273568.pdf
- https://www.democratum.com/wp-content/plugins/super-forms/uploads/php/files/c94692aa4e742852a31b1eea150a07bf/69369165642.pdf
- https://atraba-holding.com/userfiles/file/bagitafuwedoliwon.pdf
- https://werbemittelag.chupload/file/befobulagenonuvolag.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=physically+challenged+people
- 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_off0000e1ba.bind0fdb173b2e0d5301828073126c18cb426a88654986e2a8c65c08a63582aa894 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1BA | 17708 bytes |
font_01_sfnt_off00010ffe.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FFE | 16792 bytes |
font_02_sfnt_off00012815.bin1264c08c9dfd02e435011da56bf355eccf5a82fb7daa0462bd473c35c7c4930e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12815 | 10712 bytes |
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