MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links pointing to compromised WordPress sites, indicating it functions as a link farm. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or distributing further malware. The embedded URLs are the primary indicators of compromise, suggesting a redirection to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9868
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://coretry.ru/uplcv?utm_term=side+effects+of+z+pak+for+sinus+infection PDF link annotation
- https://dacoma.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607d0b9201d80---mukojozupogowapakomekutal.pdfIn PDF document text
- http://kangs78.com/clients/66216/File/77042506074.pdfIn PDF document text
- https://laihouston.com/wp-content/plugins/super-forms/uploads/php/files/857839cb6bdce39cf3a0f9df4331f24d/95284158369.pdfIn PDF document text
- http://www.fsnn.se/wp-content/plugins/formcraft/file-upload/server/content/files/16096e714f2954---94794409809.pdfIn PDF document text
- https://austarpharma.com/upload/files/19605508880.pdfIn PDF document text
- https://jamiatulbanat.in/wp-content/plugins/formcraft/file-upload/server/content/files/160ad1bd2e82c5---33143703995.pdfIn PDF document text
- https://www.advids.co/wp-content/plugins/formcraft/file-upload/server/content/files/160733363c2829---vewuwovowupilagigof.pdfIn PDF document text
- https://phoenixknights.co.uk/wp-content/plugins/super-forms/uploads/php/files/59f4ef35a31e78eecbfc36b747c20670/31900072780.pdfIn PDF document text
- https://niboparis.com/upload/fckeditor/files/73309931017.pdfIn PDF document text
- https://www.nordatec.com/wp-content/plugins/super-forms/uploads/php/files/h3oaov51hmqrh9gaa6mls2hgna/65268435919.pdfIn PDF document text
- http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/9p833qp9s8f6uc2uvcfn97qu12/mitesavanosige.pdfIn PDF document text
- http://xn--szabowski-tub.pl/userfiles/file/53439838209.pdfIn PDF document text
- https://www.sodigital.it/wp-content/plugins/formcraft/file-upload/server/content/files/1608087105af9b---tekisukalekubuta.pdfIn PDF document text
- http://cariboohose.com/userfiles/file/47629271033.pdfIn PDF document text
- https://sketchup360.vn/wp-content/plugins/super-forms/uploads/php/files/9ie44crarf8evcdjommvajsi5p/pilanufesezu.pdfIn PDF document text
- https://www.isnb.co.uk/wp-content/plugins/super-forms/uploads/php/files/7141304182161c751e182e676465ac38/73979983618.pdfIn PDF document text
- http://bonfiremadigan.com/uploads/fckeditor/file/91450375305.pdfIn PDF document text
- https://shriayurvednagpur.org/public/ckfinder/userfiles/files/dagarujusepaladujos.pdfIn PDF document text
- https://bancodevida.com/bancodevida/admin/images/image/file/51915029100.pdfIn PDF document text
- http://tfwdynasty.com/clients/f/fc/fc55782506b94f933057639757072b2a/File/70047025260.pdfIn PDF document text
- http://synerfreight.com/syner_upload/images/files/11136879451.pdfIn PDF document text
- https://paloaltospeakerseries.com/wp-content/plugins/super-forms/uploads/php/files/0eb2b0d4ca9eb036ae960ea7b3970307/10508807090.pdfIn PDF document text
- http://slowjamsundays.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c87b60bfc42---wonilemawimuvolurojo.pdfIn PDF document text
- https://www.kadinlarsitesi.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608496b1b96ee---zadatalewujademe.pdfIn PDF document text
- https://ballestermultiservicios.com/wp-content/plugins/formcraft/file-upload/server/content/files/160768b570d031---rurajivitaxaparaz.pdfIn PDF document text
- 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00013051.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13051 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00014862.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14862 | 16160 bytes |
SHA-256: 61893c6f5a4ed8be90b59e62ba5f7845fe3f782be61d2927f64273611613f2a4 |
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font_02_sfnt_off00015ded.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x15DED | 19384 bytes |
SHA-256: 6125d269ba341305a6c28650c2a2c53846887173b79a31c74ae2add767ccbcd5 |
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font_03_sfnt_off000190d5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x190D5 | 10896 bytes |
SHA-256: 0e7cf5bdd3c6f71e46419c2ea52f1cad019fd402d05a368fb086d7d0ba7e3542 |
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