MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or malware distribution intent. It contains numerous links, with several pointing to compromised CMS upload directories or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of multiple external URIs and a link farm heuristic strongly supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
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://pecsimutargygaleria.hu/files/file/22785348087.pdf In PDF document text
- https://standsimulator.com/ckfinder/userfiles/files/mezawi.pdfIn PDF document text
- http://praguynakorn.com/praguynakorn/picture/datapro/files/lozevotiwi.pdfIn PDF document text
- http://allivecoat.com/userData/board/file/detawefeb.pdfIn PDF document text
- http://www.enredmail.com/templates/files/idCliente_/file/ginusodirepob.pdfIn PDF document text
- https://cleaner.pl/userfiles/file/sapubasogukekodun.pdfIn PDF document text
- http://mtegl.wsystem.sk/userfiles/files/xejutevetalowulofan.pdfIn PDF document text
- https://samsunyapi.com/userfiles/files/pizizudufado.pdfIn PDF document text
- https://inprovitbrasil.com/ckfinder/userfiles/files/xoxevozo.pdfIn PDF document text
- https://www.sophrologue-nimes.fr/upload/news/files/baranokofimulakepalego.pdfIn PDF document text
- http://www.mondzorgvesa-voorschoten.nl/wp-content/plugins/formcraft/file-upload/server/content/files/161380d7d69242---sabofudu.pdfIn PDF document text
- https://sunarchegypt.com/userfiles/file/wibinogatumov.pdfIn PDF document text
- https://www.albriug.com/static/editor/ckeditor/ckfinder/upfile/files/nejawovu.pdfIn PDF document text
- https://carthink.org/wp-content/plugins/formcraft/file-upload/server/content/files/161377d32e403e---51589251159.pdfIn PDF document text
- http://kiko168.com/UploadFile/file/20210917105806314.pdfIn PDF document text
- http://dglytbt.com/upfolder/e/files/20210910082127.pdfIn PDF document text
- http://www.cuadernos.in/wp-content/plugins/formcraft/file-upload/server/content/files/1613402ab4b5d8---17567514968.pdfIn PDF document text
- http://vitalchurchesinstitute.com/files/file/wunafetodafev.pdfIn PDF document text
- https://creteotels.gr/FCKeditor/userimages/file/wejefopofok.pdfIn PDF document text
- https://adetexfoamgroup.centralcms.cloud/galeria/files/zujunifilerakare.pdfIn PDF document text
- http://almar-bus.pl/userfiles/file/10166065871.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=boost+app+download+apkPDF link annotation
- http://cluster006.ovh.net/~greeters/be/ckfinder/userfiles/files/83733357697.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c02c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC02C | 10292 bytes |
SHA-256: dd9c5916a3a0d7110741eb99d3e2611c8e72b1284a44a55d6ffb6decbd36e68c |
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font_01_sfnt_off0000d79a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD79A | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000efac.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFAC | 17808 bytes |
SHA-256: 7607d7b1719aed842fba5ab444930fc17bb40e4fb9dfdbb0e77de431a87520b7 |
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