MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by ML classifiers 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 distribute malicious content or phish users. The presence of these links and the overall structure strongly indicate a spearphishing attachment attack vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
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://dentherapia.hu/files/file/32278619794.pdf In PDF document text
- http://drinkandshrink.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160849250e501a---57064891708.pdfIn PDF document text
- https://www.ayersworthglen.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c9e1242a4db---97896809292.pdfIn PDF document text
- https://legacyltg.com/wp-content/plugins/super-forms/uploads/php/files/effe0dd964a43e209bc8e3ebaecac0dc/gupizevilimikudazufotep.pdfIn PDF document text
- http://jevades.com/aircraft/fckimages/file/xubematalinozesosipe.pdfIn PDF document text
- https://nbcmedia.vn/ckfinder/userfiles/files/75687174454.pdfIn PDF document text
- https://betonwerkendejonge.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1608cfa8ea3d39---wojaxiruzoragupigosajik.pdfIn PDF document text
- https://lakecountyoralsurgery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac72fd129cb---96459190235.pdfIn PDF document text
- https://ecomassage.pt/wp-content/plugins/super-forms/uploads/php/files/ogbgcbttd1i9c6061q9sskon4r/86304349591.pdfIn PDF document text
- http://bahtiyardishekimi.com/fckfiles/file/paruxaj.pdfIn PDF document text
- https://www.projectorrentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fd150e54e0---mabulewofudolepirotup.pdfIn PDF document text
- http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160d2511dce532---13169847376.pdfIn PDF document text
- https://realimpacto.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160bbc217d0dc7---70143503483.pdfIn PDF document text
- https://www.alertgy.com/wp-content/plugins/super-forms/uploads/php/files/5164743526678504dccc738f5db752e8/39417354305.pdfIn PDF document text
- http://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a7ec368faea---87083728042.pdfIn PDF document text
- http://colescastle.com/clients/875019/File/tijegikonesotivamukunum.pdfIn PDF document text
- http://www.oknookna.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160d8a2003a4d7---83738203836.pdfIn PDF document text
- http://pcccphucvinh.com/upload/files/rubinutulosutolorubarav.pdfIn PDF document text
- http://longthinhphat.net/uploads/files/4148624753.pdfIn PDF document text
- https://festival-bg.com/media/ckuploads/files/rowufoxu.pdfIn PDF document text
- https://www.numberoneporthill.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160c5057f0c004---biwevazew.pdfIn PDF document text
- https://thealloywheelcentre.co.uk/wp-content/plugins/super-forms/uploads/php/files/3147f450ceecbc4a2907145ae7972458/ralutunizemol.pdfIn PDF document text
- http://studiopol.com/userfiles/files/35804638855.pdfIn PDF document text
- http://absolutelyneon.com/userfiles/file/mijabuvumanixubunivokidaz.pdfIn PDF document text
- http://losmarinoslanzarote.com/marinarubicon/admin/file/rudegafimijazivewital.pdfIn PDF document text
- http://qca.ch/userfiles/file/3956379264.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/LPIa9PGmDLg/uplcv?utm_term=best+3d+modelling+software+for+beginnersPDF 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_off0000ef20.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF20 | 11148 bytes |
SHA-256: 10b2db300977b25bb88f5bd85caf6c24eaed61576f74a76ef6a61d496165c2d3 |
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font_01_sfnt_off00010910.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10910 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012122.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12122 | 17296 bytes |
SHA-256: 579b9a2ad9282c96eee88ec196c62319bd66a4e00388e4646aadc7fdfada512d |
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