MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains numerous embedded URLs, many pointing to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The document body is heavily obfuscated and appears to be generated by wkhtmltopdf, further obscuring its true intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://gniortho.com/files/Upload/file/71141368607.pdf In PDF document text
- http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16142719946669---teguxagave.pdfIn PDF document text
- https://hogozaty.com/ckfinder/userfiles/files/gulis.pdfIn PDF document text
- http://www.solarwindependence.com/ckfinder/userfiles/files/tezatulupedisufifumobopaz.pdfIn PDF document text
- https://ideylia.fr/uploads/file/21047508094.pdfIn PDF document text
- http://rcot.by/pics/files/43018144288.pdfIn PDF document text
- http://maidichike.com/upload/files/bonemirobodexigepakag.pdfIn PDF document text
- http://airelimpio.mx/img/editor/file/49051135603.pdfIn PDF document text
- https://www.xcelsus.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613d61e95e254---24008741634.pdfIn PDF document text
- http://big-blue-bus.com/pics/fotos/1/file/pofititakal.pdfIn PDF document text
- http://accessiblevehicleservices.com/userfiles/file/neloxaxiz.pdfIn PDF document text
- https://shinyjewellers.com/wp-content/plugins/super-forms/uploads/php/files/rks1jqbrfn6qtrnhkarl6k25aj/xejubominugepunoliluvama.pdfIn PDF document text
- http://sun-apartments.pl/data/pages/71694297130.pdfIn PDF document text
- http://totalfinance.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161421890388e0---mumagakemib.pdfIn PDF document text
- http://floridadressyourhome.com/uploaded_files/userfiles/files/suxuvikupuxetetekajaka.pdfIn PDF document text
- http://dreamwith.gni.kr/ckupload/files/59359249607.pdfIn PDF document text
- http://print-resource.co.uk/ckfinder/userfiles/files/timimomulofugi.pdfIn PDF document text
- http://jr-bang.com/uploadfiles/20210911045600.pdfIn PDF document text
- http://chothuexeninhbinh.net/data/dulieu/files/xekefatarogefisurilij.pdfIn PDF document text
- https://fundacjaartfreeart.pl/userfiles/file/84505927939.pdfIn PDF document text
- http://parvazyab.net/basefile/api203/files/ziwibulatoguzoxipixodukum.pdfIn PDF document text
- https://nguoixunghekiev.vn/userfiles/file/vonexufuxumazoliroreruger.pdfIn PDF document text
- https://nailseasupportgroup.com/wp-content/plugins/super-forms/uploads/php/files/181faf8288da4885d542d01314503265/74994303963.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=jogos+para+telemovel+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_off0000de28.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDE28 | 10792 bytes |
SHA-256: e34d3de937db258a97ce8a2d91d96585764b83ebc376b1b259d980581bd979fa |
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font_01_sfnt_off0000f6d6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF6D6 | 19412 bytes |
SHA-256: 2bca10f68d53c1c91e3881545ab8a91d0f3515096e7bf61a0c3e09b92cf2fa58 |
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font_02_sfnt_off000126b9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x126B9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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