MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by multiple heuristics as a link farm, with several URLs pointing to compromised CMS uploads. The ML classifier and ClamAV also identified it as malicious, specifically as a phishing trojan. While no scripts were explicitly extracted, the nature of PDF link farms often involves JavaScript to redirect users to malicious sites, hence the inclusion of T1059.007.
Machine Learning
- Nyx PDF Classifier malicious score 0.9972
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://massagetheory.ca/wp-content/plugins/super-forms/uploads/php/files/27cc900792dcbe2e075d2fcbbab649f6/4645525427.pdf In PDF document text
- https://portalkucharski.pl/app/webroot/media/files/pipinawujosivezida.pdfIn PDF document text
- https://eclipsetheaters.com/wp-content/plugins/formcraft/file-upload/server/content/files/16145473071b83---60077439446.pdfIn PDF document text
- http://chrisdepanneservices.fr/Sites/cds/files/4653830959.pdfIn PDF document text
- http://reicar.dk/userfiles/file/jowobez.pdfIn PDF document text
- https://ddmmaze.altruistictech.org/documents/img/upload/files/tagokexutujize.pdfIn PDF document text
- https://investmentskillsgroup.com/images/userfiles/file/98744561258.pdfIn PDF document text
- https://faresaldabbous.com/uploads/file/64721494433.pdfIn PDF document text
- http://intrinhgia.com/admin/webroot/upload/image/files/33044408807.pdfIn PDF document text
- http://vinhthuan.vn/upload/files/xepejafuritewagirelagu.pdfIn PDF document text
- http://contactfm.be/userfiles/files/38557477386.pdfIn PDF document text
- http://agriturismolionsfarm.it/userfiles/files/zaxisemujimepujalitu.pdfIn PDF document text
- http://location-appartement-venise.com/italie_documents/files/85085239241.pdfIn PDF document text
- http://blgjad.com/upload/files/dowasodixed.pdfIn PDF document text
- https://husvagnsexpo.se/wp-content/plugins/formcraft/file-upload/server/content/files/1613c65b393e34---10043623326.pdfIn PDF document text
- http://www.gieskestukadoors.nl/ckfinder/files/files/tuboxazakipo.pdfIn PDF document text
- http://gesgo.de/userfiles/file/foxolutokisufefidom.pdfIn PDF document text
- http://sbstroy53.ru/img/files/24486438780.pdfIn PDF document text
- http://kleinschaden.expert/userfiles/file/bulisetubodij.pdfIn PDF document text
- http://ecilingirler.com/resimler/files/gajuzebuzikafagevem.pdfIn PDF document text
- https://abofahed.com/userfiles/file/bazelepunamovekesun.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/YTWXjIUwRh0/uplcv?utm_term=como+nao+atualizar+apps+automaticamente+androidPDF 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_off0000d277.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD277 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000ea89.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA89 | 18888 bytes |
SHA-256: 44aefcf505b99bf46ad2cc88a8203c8c4f21813774f919f0a110545b13ad9c39 |
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font_02_sfnt_off00011b61.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11B61 | 10868 bytes |
SHA-256: 96a7a950c2be7144201fc02ed1f81d84012dcbfdf59cb322107f386bce47e534 |
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