MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF document was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to compromised WordPress upload directories or disposable hosting, suggesting a link farm designed to redirect users to malicious sites. The presence of these links indicates an attempt to deliver a payload or phish credentials.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
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 https://chcial.ru/uplcv?utm_term=paris+megan+hess+pdf PDF link annotation
- http://ser-buk.com/userfiles/file/36371221093.pdfIn PDF document text
- https://rajaunited.com/contents//files/91307377027.pdfIn PDF document text
- http://cn-junsheng.com/upload/file///202172131517761.pdfIn PDF document text
- http://agriturismolescuderie.eu/userfiles/files/zijerofutum.pdfIn PDF document text
- https://www.ppmcare.co.uk/wp-content/plugins/super-forms/uploads/php/files/7q2kml4t38q4623lj1lbinidlh/70938925438.pdfIn PDF document text
- https://www.clinicaepilepsia.cl/ckfinder/userfiles/files/votosusetutagotowubexuz.pdfIn PDF document text
- http://pinxedien.net/upload/files/53967248038.pdfIn PDF document text
- http://bagandpack.ru/wp-content/plugins/super-forms/uploads/php/files/0e0d94faf44d91bff3ad566cba82e2a7/46123937774.pdfIn PDF document text
- http://tndgdemo2.com/ckfinder/userfiles/files/nadiropafeziw.pdfIn PDF document text
- http://blackshirts1962.com/clients/f/f2/f245580d3072b78cda2271cf7a7e3f61/File/31273276001.pdfIn PDF document text
- https://nirkongrp.com/ckfinder/userfiles/files/muxuxa.pdfIn PDF document text
- http://www.holzbau-hoelzl.at/wp-content/plugins/formcraft/file-upload/server/content/files/160b34eb25fd00---firem.pdfIn PDF document text
- http://geluidsadviesnederland.nl/ckfinder/userfiles/files/xituxejiziduk.pdfIn PDF document text
- https://n95america.com/wp-content/plugins/super-forms/uploads/php/files/1c5a5c6b3a40bcf11e18bf609a0c510e/kavitamorat.pdfIn PDF document text
- https://gimenezricarte-deltabogados.com/ckfinder/userfiles/files/82116740471.pdfIn PDF document text
- http://eszixv.hu/ckfinder/userfiles/files/zokigirinev.pdfIn PDF document text
- https://amezdigital.com/wp-content/plugins/super-forms/uploads/php/files/cf8727cf4b3a6c54c87f10e704acb529/fagulategibe.pdfIn PDF document text
- http://adams-gold.ru/archive/image/file/35034809026.pdfIn PDF document text
- https://aneri12.eu/res/file/30762033443.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_off0000d647.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD647 | 10680 bytes |
SHA-256: 1e2abfad33f2c10caaf05b9611a67b2b704c2154b46a35315d69c4982689a184 |
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font_01_sfnt_off0000ee47.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE47 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010659.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10659 | 18756 bytes |
SHA-256: 24ad7e704c6d2a1cf981ab35c918a33b466c60166c4c788f763d41499c9fa334 |
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