MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF identified as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It functions as a link farm, containing numerous URLs that point to compromised WordPress sites and other hosting, likely intended to lure users into downloading further malicious content. The PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristic indicates a pattern of using compromised content management system uploads for hosting malicious files.
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://www.patricktennis.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160ac1b6709573---subitasiberadigo.pdf In PDF document text
- http://www.mywil.ch/wp-content/plugins/formcraft/file-upload/server/content/files/160aaf7ba81568---fopidiserup.pdfIn PDF document text
- https://webmodeli.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606e60b7a8a79---tutefinamidigixudekufari.pdfIn PDF document text
- https://africanresearchcenter.com/userfiles/file/gafeler.pdfIn PDF document text
- http://www.hptindia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2a1c27fa00---lodobozitudirafegutideja.pdfIn PDF document text
- https://majubesar.info/contents//files/802205125.pdfIn PDF document text
- https://brunoamaranti.it/wp-content/plugins/super-forms/uploads/php/files/h2gtsl4e8eoma4h5kvm038cbp1/zamogasesafuvuzub.pdfIn PDF document text
- https://cspdental.com/wp-content/plugins/super-forms/uploads/php/files/936144aaeee29a7cdc5de312f29ad459/80580522992.pdfIn PDF document text
- http://turnwealthy.com/ckfinder/userfiles/files/2337338248.pdfIn PDF document text
- http://zatoodesign.com/userfiles/files/14082176743.pdfIn PDF document text
- http://medicaldistri.com/ckfinder_files/files/13342945824.pdfIn PDF document text
- https://chaplains-camps.org/upload_picture/file/2139216887.pdfIn PDF document text
- http://seashoresilverlabradors.com/clients/4/48/482fd9669fb3260065120a60ccac5e48/File/ralidokevexegozifowo.pdfIn PDF document text
- http://anhhieu.vn/hinhanh/file/6831659237.pdfIn PDF document text
- https://whitesal.com/data/images/file/8345_20210518074715.pdfIn PDF document text
- http://accessiblevehicleservices.com/userfiles/file/vewugiboguroxixow.pdfIn PDF document text
- http://www.driftime.ee/wp-content/plugins/formcraft/file-upload/server/content/files/160d3d75524fbc---nuvuviweja.pdfIn PDF document text
- http://shopcloud.cloud//ckfinder/userfiles/files/jivaradupefikopela.pdfIn PDF document text
- https://www.privathospitaletkollund.com/ckfinder/userfiles/files/vegoviradoxujiselitisi.pdfIn PDF document text
- https://ktmcollege.org/public_html/userfiles/file/27928154443.pdfIn PDF document text
- http://www.associatedomains.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b111023eb8a---94752452480.pdfIn PDF document text
- http://intestinalfortitude.org/clients/0/0c/0cf504f131cb0201443a7bd449519f4a/File/4760343457.pdfIn PDF document text
- https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/82590e088d871c166431343c3443849e/poroxidixivudenefekoduwim.pdfIn PDF document text
- http://avvocatoandreabruschi.it/userfiles/files/2663232757.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=split+pdf+pages+by+contentPDF 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_off0000ff26.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFF26 | 11024 bytes |
SHA-256: 47b2146c1e75fa901e188a3368d93ce3f1049e4f4d6dd949ddd988c84a2c9ea1 |
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font_01_sfnt_off00011883.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11883 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00013095.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13095 | 17840 bytes |
SHA-256: f63c6f730ab3ebb7197ae680596373bde659c4802d81abbdedcb00b1b7640b11 |
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