MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. Heuristics identified the document as a link farm, with many embedded URLs pointing to potentially compromised or disposable hosting. These links likely serve as a lure to redirect users to phishing sites or download further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://webinaris.eu/ckfinder/userfiles/publics/files/lozavobuno.pdf In PDF document text
- https://istanajp2.com/contents//files/demofadelageb.pdfIn PDF document text
- https://hnhaa.com/userfiles/tnejp/files/52340709521.pdfIn PDF document text
- http://kindervakantieweekdeurne.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161113ede588b6---zunodekokekomaso.pdfIn PDF document text
- http://kennyre.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612c3ad14cdcf---44624097541.pdfIn PDF document text
- https://cargotavio.ru/files/file/55934578960.pdfIn PDF document text
- http://baharemadinah.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8bf5918248---69701450981.pdfIn PDF document text
- https://www.inter-tube.co.uk/wp-content/plugins/super-forms/uploads/php/files/70a1182f9ef209d26498c9c39eb720a4/volakewigejagumuso.pdfIn PDF document text
- http://keyflounge.nl/userfiles/file/10162372604.pdfIn PDF document text
- http://www.knickmeier.net/images/pageimg/file/misusakateriwufubej.pdfIn PDF document text
- https://burgaseguros.com/userfiles/file/56863809296.pdfIn PDF document text
- https://thinkglobalcompliance.com/ckfinder/userfiles/files/52200995187.pdfIn PDF document text
- http://hftyby.com/upload_fck/file/2021-9-3/20210903094340685053.pdfIn PDF document text
- http://veterinariacasettamattei.it/userfiles/files/zatezawuzaginuwuruzaxunur.pdfIn PDF document text
- https://fermuar.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610bb7c77728e---90200273306.pdfIn PDF document text
- http://polskienarty.pl/data/aktualnosci_imgs/file/nevobawug.pdfIn PDF document text
- http://nprofit.hk/userfiles/61736370534.pdfIn PDF document text
- http://fpole.ru/sadm_files/pemososizesufipo.pdfIn PDF document text
- http://www.atrium-tuiles.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084f71a7e46c---60385060726.pdfIn PDF document text
- http://pogotowienaukowe.com/Upload/file/60036887807.pdfIn PDF document text
- https://arbormaster.net/uploads/files/44481031679.pdfIn PDF document text
- http://dalnoboy.net/data/filestorage/upload/files/jufoxotigifinowepap.pdfIn PDF document text
- https://nobleanimalsanctuary.org/wp-content/plugins/super-forms/uploads/php/files/tmp/vodagofor.pdfIn PDF document text
- https://fablab808.com/nbloom/fckuploads/file/87298316484.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=spdf+notation+definitionPDF 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_off0000de85.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE85 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f69c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF69C | 10252 bytes |
SHA-256: 0e84b2149d9da6c8d79d7e08314e8a7502051b96dca6a9738215474789a94160 |
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font_02_sfnt_off00010dc3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10DC3 | 16556 bytes |
SHA-256: cdf358d0ad89b92bc45e43434102b63e3c47a7cff77eb621b3b6c55dfa5ed540 |
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