MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link farm pointing to multiple compromised WordPress sites, suggesting a phishing or malware distribution attempt. The presence of a PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates a tactic to obscure the true malicious intent by using disposable hosting for the links. ClamAV detection as Pdf.Phishing.Trojan further supports the malicious classification.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://ttccid.com/userfiles/files/74798813958.pdf In PDF document text
- http://metzpaintings.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c0343fafe05---difebelozifuwatap.pdfIn PDF document text
- http://arcdesantmarti.com/biocop/Images/images-editor/file/wufujuti.pdfIn PDF document text
- http://okwmd.com/upload/fckeditor/file/fatajuxadobefesijekepu.pdfIn PDF document text
- https://cashmeredreams.com/wp-content/plugins/super-forms/uploads/php/files/d3f2fc5cf7814e2ba5da2e04eb8313ad/17979818762.pdfIn PDF document text
- http://accronline.com/userfiles/file/dolufiforevapilipomuboja.pdfIn PDF document text
- https://christianboudreau.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b5408a7470d---zudinuwakerebenubo.pdfIn PDF document text
- https://g-ortho.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c53906b7806---48457700005.pdfIn PDF document text
- http://afghansolar.com/userfiles/file/wikagu.pdfIn PDF document text
- http://queuemanagementsystems.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608bb77719818---jizuxezimaluxip.pdfIn PDF document text
- http://clairerolo.com/userfiles/file/patimiri.pdfIn PDF document text
- http://artecgroupservices.com/imagenes/file/85891674558.pdfIn PDF document text
- http://www.peplex.it/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc34b3a6d7---nujutezuzikupejuju.pdfIn PDF document text
- http://bensonlandscape.com/editorData/file/60677420349.pdfIn PDF document text
- http://pamat.ro/UserFiles/file/telamamujaz.pdfIn PDF document text
- http://mountmedpharmacy.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160888f54895bb---11032055537.pdfIn PDF document text
- https://divorcioconsensual.com.br/wp-content/plugins/super-forms/uploads/php/files/e5390b28d72285123107b072171cf2a4/23065179789.pdfIn PDF document text
- http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a43ef693e58---mobofasukanux.pdfIn PDF document text
- https://alamansyria.com/userfiles/file/87134426816.pdfIn PDF document text
- https://viajespereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fa72449194---vameparasetoxudenaxagumo.pdfIn PDF document text
- http://shophouse.info/images/files/19676118921.pdfIn PDF document text
- https://www.beewellrx.com/wp-content/plugins/super-forms/uploads/php/files/tmp/72768691261.pdfIn PDF document text
- http://deficanderel.com/clients/6/67/674a09facce11b7629d390eef9534ff9/File/58997697749.pdfIn PDF document text
- http://businesslegalgroup.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/76418503615.pdfIn PDF document text
- http://www.mkkdigital.pt/wp-content/plugins/formcraft/file-upload/server/content/files/1609c1a6750c6d---59952695464.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/fzgW7-mxBc0/uplcv?utm_term=appointment+letter+pdf+downloadPDF 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_off00010001.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10001 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00011818.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11818 | 10560 bytes |
SHA-256: 576c0670059b7ee52b35092f31b2a9b1e3315fe55740a735f11fc1945ad21a8e |
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font_02_sfnt_off0001302e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1302E | 17048 bytes |
SHA-256: ed20ead8f1e8bab2d7da719b0f9528d52af76c74c8484324ddee89762430408c |
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