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. Heuristics indicate it functions as a link farm, directing users to multiple external URLs, some hosted on compromised CMS platforms or disposable domains. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the overall structure and URL distribution strongly suggest a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://constantemails.com/userfiles/file/1623277443zukekexed.pdf In PDF document text
- http://escolacaritas.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b570d3c2410---16550221409.pdfIn PDF document text
- http://daugiavanthienphuoc.com/media/ftp/file/99451442810.pdfIn PDF document text
- http://banner-ever.com/ckImg/files/pazafurenetigaganipomowet.pdfIn PDF document text
- https://vidolamerica.org/wp-content/plugins/super-forms/uploads/php/files/1260e5fcb401953e99953af64fa1881d/11443581220.pdfIn PDF document text
- https://www.frankcapassoandsons.com/wp-content/plugins/formcraft/file-upload/server/content/files/160793991e4862---fujiwuz.pdfIn PDF document text
- http://raiders71.com/clients/4/41/4134020f2f298c111575624a380fabfc/File/nikisuzame.pdfIn PDF document text
- https://melz-feu.ru/upload/vawawusi.pdfIn PDF document text
- http://www.ambredore.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c6d103f38a---jemamaduvuf.pdfIn PDF document text
- https://rhythmcprandfirstaid.com/wp-content/plugins/super-forms/uploads/php/files/a02ac2ce4d1c66b3b67bfd5173f9879f/lasosoluxedeniku.pdfIn PDF document text
- https://appchecar.com/ckfinder/userfiles/files/45225746816.pdfIn PDF document text
- http://pvsystreports.com/wp-content/plugins/super-forms/uploads/php/files/u7bsm8l335avh1mqtf8pskr4e4/38366331984.pdfIn PDF document text
- https://www.etbsupplies.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607f66c69473c---88508226667.pdfIn PDF document text
- http://www.hptindia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160791d092d80e---kuzotonaganuge.pdfIn PDF document text
- https://www.financedeclined.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16085ed1451732---61946138211.pdfIn PDF document text
- https://www.enterpriselighting.com/wp-content/plugins/super-forms/uploads/php/files/aa28e9afda2f8f68576b817a309463a2/gilutakidelaguxukowosas.pdfIn PDF document text
- https://benqmusicworkshop.com/fupload/file/84957326446.pdfIn PDF document text
- http://ksklinika.ru/ckfinder/userfiles/files/makukel.pdfIn PDF document text
- http://www.heksan.com.pl/file/jozixukaxitewugudosu.pdfIn PDF document text
- https://www.thecandystoresudbury.com/wp-content/plugins/super-forms/uploads/php/files/i5ska2nnlt4oeaokbnf5ja6nmd/mowoposeza.pdfIn PDF document text
- https://thefertilizergranulator.com/d/files/larativadolesora.pdfIn PDF document text
- https://www.ccs-corporation.com/ckfinder/userfiles/files/zibelenufez.pdfIn PDF document text
- https://myvideoclasses.com/ci/userfiles/files/41700558155.pdfIn PDF document text
- http://photo-preiss.com/upload_files/files/xibatemij.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=comma+and+semicolon+worksheets+pdfPDF 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_off0000cf66.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCF66 | 11096 bytes |
SHA-256: ecefa479d56c83a90c2c7491c4f6c4213087cbfd4b9512fd3f025b8906bfcdc6 |
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font_01_sfnt_off0000e925.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE925 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010137.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10137 | 16516 bytes |
SHA-256: a85e206feb684e270ddf93c8dac65ed58130d2e41ed8087cc39e4030a45b28c7 |
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