MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious by a machine learning classifier and ClamAV, specifically flagged as Pdf.Phishing.Trojan. It contains numerous links, many pointing to compromised WordPress uploads and disposable hosting, suggesting a link farm designed to lure users to malicious sites. The presence of external URI heuristics and the link farm detection strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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 http://www.ecvbrass.ch/user/web/file/pigoxoxawibujuta.pdf In PDF document text
- http://inglewoodreunion.com/clients/68690/File/63740093320.pdfIn PDF document text
- http://pphu-joanna.pl/fckpliki/file/vobenizegijedegadabajapa.pdfIn PDF document text
- http://www.carolglassman.com/wp-content/plugins/formcraft/file-upload/server/content/files/160723e87ad86d---68142673183.pdfIn PDF document text
- http://artecgroupservices.com/imagenes/file/64032652164.pdfIn PDF document text
- http://ligneus.hu/upload/file/dobef.pdfIn PDF document text
- http://skup-laptopow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073e1bfb0a9f---7044822402.pdfIn PDF document text
- http://beergolfers.com/blog/images/file/nivoketilexo.pdfIn PDF document text
- http://interwork.sk/userfiles/file/lekuze.pdfIn PDF document text
- https://123kozijnofferte.nl/wp-content/plugins/super-forms/uploads/php/files/cfe0thjg0l66uocfhdno15rn67/kugezebemoguno.pdfIn PDF document text
- http://indiebookoftheday.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084244d56660---pakulalokamakumem.pdfIn PDF document text
- http://birzebbugastpetersfc.com/files/file/95477344982.pdfIn PDF document text
- https://na-nule.ru/wp-content/plugins/super-forms/uploads/php/files/lfddkdnr7o73v7li8b1hpvilv5/tumajarawavikuzakif.pdfIn PDF document text
- https://stvorki.ru/files/file/84786210905.pdfIn PDF document text
- https://joefairless.com/wp-content/plugins/super-forms/uploads/php/files/fba7608fa2353a52dfaf30dbfb65886d/84334804254.pdfIn PDF document text
- https://directprocessors.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bbbc7c69108---lukotogamidomusibonido.pdfIn PDF document text
- https://www.alongsideasia.com/wp-content/plugins/super-forms/uploads/php/files/cb0909f5ef8eda50157273bab233a035/jokowamoz.pdfIn PDF document text
- https://www.mixedclass.com.au/wp-content/plugins/super-forms/uploads/php/files/eca215c86e5th28k63kplnr8kj/sijola.pdfIn PDF document text
- http://mnogonomerov.ru/uploads/file/12564158190.pdfIn PDF document text
- https://psychologgia.pl/Upload/file/77008459413.pdfIn PDF document text
- https://pediatricpotentialsnj.com/PP/PPpng/files/zazomix.pdfIn PDF document text
- https://agrilaui.com/userfiles/file/xizogepukovebowexudekej.pdfIn PDF document text
- http://saatgaamkansarasamaj.com/admin/uploads/files/giwakabelujit.pdfIn PDF document text
- http://www.bridalchapel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d23ba791910---4159379435.pdfIn PDF document text
- https://gccpay.net/wp-content/plugins/super-forms/uploads/php/files/36f50d2491a5c60e1f2ed3c46bfd5b74/dabetikixosekufa.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1xuhb7AK25c/uplcv?utm_term=an+introduction+to+environmental+biophysics+pdfPDF 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_off0000e409.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE409 | 16576 bytes |
SHA-256: 05a108cd2c9ec2e1663d11ee1ece72e6ffc229e7c851bc0d89d210be619c366d |
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font_01_sfnt_off00010eb9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10EB9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000126d0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x126D0 | 11288 bytes |
SHA-256: a96c52f388ce3b536d6840efdbdf3353b9b456e8ac3bcd0f7ad29647e059c707 |
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