MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The heuristics reveal it functions as a link farm, with numerous URLs pointing to potentially compromised WordPress upload directories. These links likely serve to redirect users to malicious content or phishing sites, aligning with a spearphishing attachment attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://www.emporiocaritaspisa.it/wordpress/wp-content/plugins/formcraft/file-upload/server/content/files/1609bb5fee685f---muvuridoga.pdf In PDF document text
- https://sckstone.com/wp-content/plugins/super-forms/uploads/php/files/275a7b5b69007076d8f609d24eb2696f/18983207337.pdfIn PDF document text
- http://hondaotohaiphong.vn/upload/files/katuferejuzuz.pdfIn PDF document text
- http://unipell.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160963c6b12f37---rofen.pdfIn PDF document text
- https://angelsstaff.com/uploads/file/6750165984.pdfIn PDF document text
- http://medica-brno.com/files/37087832540.pdfIn PDF document text
- http://sola-brothers.com/userfiles/file/31257001813.pdfIn PDF document text
- https://master.plus/wp-content/plugins/super-forms/uploads/php/files/0aebfa34f928a161a32f2d8866828268/52743361751.pdfIn PDF document text
- http://www.dj-csnl.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160bb03fe0a3dd---dewufavop.pdfIn PDF document text
- https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/8ec430ac548175e0c58e68d461e09400/24367672928.pdfIn PDF document text
- https://hcs1000.org/wp-content/plugins/super-forms/uploads/php/files/70a8e1814b692734140e1fa6ef7c9f0a/10772968001.pdfIn PDF document text
- https://graffitipaintstudio.com/wp-content/plugins/super-forms/uploads/php/files/f8dbc1d0c883ca775f0fb9b55ff648f0/keroroketovipibala.pdfIn PDF document text
- http://timebank.ru/sites/default/files/photos/pagefile/kimujejazesulasefunureg.pdfIn PDF document text
- http://argra.rs/wp-content/plugins/formcraft/file-upload/server/content/files/160a4f2ff4c552---63156349129.pdfIn PDF document text
- https://www.hed-endo.hr/wp-content/plugins/formcraft/file-upload/server/content/files/16075a5281d07c---wifalofinasigox.pdfIn PDF document text
- http://maekuangudomthara.com/ckfinder/userfiles/files/41480678340.pdfIn PDF document text
- https://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/160addb30e9f94---42433774693.pdfIn PDF document text
- http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160a46fa9d9dbb---lodupedupug.pdfIn PDF document text
- https://www.dazzlingdecor.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160c88fa0542f3---tetujonewafutaf.pdfIn PDF document text
- http://mldinsaat.com/image/files/jifadonekabo.pdfIn PDF document text
- https://nikosdimos.gr/userfiles/file/43388071552.pdfIn PDF document text
- https://canvasations.com/wp-content/plugins/super-forms/uploads/php/files/pockqroh8a81ia32qujeskscr0/kadekizozoxunusukomobewi.pdfIn PDF document text
- https://www.lashharmony.co.uk/wp-content/plugins/super-forms/uploads/php/files/hhdnaclsuo9efu0rufsbbi5a3t/fonikalorotipufuzodufu.pdfIn PDF document text
- https://glasschneider.koeln/wp-content/plugins/super-forms/uploads/php/files/re87m38r04dia1pivjd8h97aip/53111446578.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=when+do+you+use+the+verb+ser+in+spanishPDF 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_off0000f289.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF289 | 17964 bytes |
SHA-256: 76df3052265577e87610ecd957f0d3215a64ccd1d55e2e5406307c03c6a907c2 |
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font_01_sfnt_off00012047.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12047 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001385e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1385E | 10856 bytes |
SHA-256: 8ec909f2ab6423e6811a187909f117a6a57bb0d39c86cc287fbcb463b906a766 |
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