MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The ML classifier strongly indicates maliciousness, supported by heuristics identifying the PDF as a link farm pointing to compromised CMS uploads and disposable hosting. The document body is unreadable binary data, but the embedded URLs and heuristic findings reveal a pattern of redirecting users to potentially malicious content. No scripts were extracted from this sample.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
Heuristics 5
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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://drivingschoolofnorthtexas.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079d4df80368---6333821063.pdf In PDF document text
- https://cvenhancer.com/wp-content/plugins/super-forms/uploads/php/files/344a5ad4ee4f656c199203e8388dacaf/jiludekisarolibalo.pdfIn PDF document text
- http://woonhuislift.info/wp-content/plugins/formcraft/file-upload/server/content/files/1608e9bb239c2f---magixedajat.pdfIn PDF document text
- http://www.cenlafilm.com/siteuploads/editorimg/file/32973190050.pdfIn PDF document text
- https://vdbergelectro.nl/wp-content/plugins/super-forms/uploads/php/files/df7b919f2a20f385e749b2388df9b0a9/68168453259.pdfIn PDF document text
- https://www.criteriainvest.com.br/wp-content/plugins/super-forms/uploads/php/files/piemkqavhvnpvd2ojpqt1j4t8a/90298652093.pdfIn PDF document text
- https://sirikulsteel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bb7895d13ef---ragabevavanuzajobal.pdfIn PDF document text
- http://etcad.net/np/upfile/file/gobinenijemuta.pdfIn PDF document text
- http://studiolaviano.it/userfiles/files/vezap.pdfIn PDF document text
- https://www.a2zmedical.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16133dcfda52fe---xozomaderejiwuk.pdfIn PDF document text
- https://wcdt.co.th/wp-content/plugins/super-forms/uploads/php/files/hsqnarsso1ekeb9vvsn1dknlge/13290147823.pdfIn PDF document text
- http://akademia-jedenastka.pl/zdjecia/fck/file/75376547040.pdfIn PDF document text
- https://aawyx.com/sites/default/imageuser/file/80642693378.pdfIn PDF document text
- https://nepalaviationmuseum.com/userfiles/files/63508762597.pdfIn PDF document text
- http://www.alex-vasilkov.ru/images/wisdom/file/wugas.pdfIn PDF document text
- http://blissrenewbeauty.com/newerac2c/userfiles/file/relekuti.pdfIn PDF document text
- http://peaceinsrilanka.lk/ckfinder/userfiles/files/98246095885.pdfIn PDF document text
- https://www.revistadefiesta.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d32eea0a754---jowebavukotaluruvavebusu.pdfIn PDF document text
- http://iwish-cosmetics.com/wp-content/plugins/formcraft/file-upload/server/content/files/16074fd5a20e9d---22302094104.pdfIn PDF document text
- https://extremetour74.ru/wp-content/plugins/super-forms/uploads/php/files/6c23bf948a7b0a56942c91452d23574b/58859345041.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=ogledalce+znanja+matematika+2+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_off0000c236.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC236 | 21120 bytes |
SHA-256: 5c99cb1990c8ac8dce8bad4301b9929d261741776c0c2268d01a5f49c67600fc |
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font_01_sfnt_off0000f7dd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7DD | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010ff4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FF4 | 11000 bytes |
SHA-256: c8e7e45304bffaa00258e0cb624f4c5f1508f72781e0d47be66569d688d21db5 |
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