MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as Pdf.Phishing.Trojan. The numerous embedded URLs point to compromised CMS uploads and disposable hosting, indicating a link farm designed to redirect users. The primary attack pattern involves using the document as a lure, likely via spearphishing, to direct users to malicious or SEO-abused websites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
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 https://nomylo.ru/uplcv?utm_term=reddy+forensic+medicine+pdf+free+download PDF link annotation
- http://servmed.net/userfiles/file/wenatukexedejimagijex.pdfIn PDF document text
- https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/a8ff5afc296cd471e756b2e675f34497/tabapoxotezera.pdfIn PDF document text
- https://www.carlosfunes.es/wp-content/plugins/formcraft/file-upload/server/content/files/160bce6f09324d---jojirujigejafe.pdfIn PDF document text
- http://buyyoutubelikes.com/ci/userfiles/files/nokifetavulimirigusixizis.pdfIn PDF document text
- https://stewsites.com/wp-content/plugins/super-forms/uploads/php/files/e901e459cb49a81dfb5ba96fc4d952cb/78272169859.pdfIn PDF document text
- http://remontnoedelo.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160945bafa79a3---rifukidanidibulagiwuw.pdfIn PDF document text
- http://humanitool.ru/userfiles/file/rozonebolumesimunipoxigak.pdfIn PDF document text
- http://uat.ideadunes.com/projects/ideadunes-portfolio-site/wp-content/plugins/formcraft/file-upload/server/content/files/160d95c4577e55---22626785655.pdfIn PDF document text
- http://www.catalogodecineargentino.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609434782cca2---gikiritigotawu.pdfIn PDF document text
- http://quick-thailand.com/images/uploads/file/samaxebuxirujukulano.pdfIn PDF document text
- http://gancza.pl/userfiles/file/rajixofirowaraxipirepu.pdfIn PDF document text
- https://bonpetsupply.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d399923ac7---jaganuzubup.pdfIn PDF document text
- https://adverto.ee/userfiles/file/99593401088.pdfIn PDF document text
- http://skyline1968.com/clients/74864/File/6897688479.pdfIn PDF document text
- https://lynnesnaturaltreats.com.au/wp-content/plugins/super-forms/uploads/php/files/f707ac8a836a16f2e2fd57b2e623db11/32766824734.pdfIn PDF document text
- http://www.tecnotrefg.it/wp-content/plugins/formcraft/file-upload/server/content/files/160fc9884b81aa---18889629951.pdfIn PDF document text
- https://nguyenthelong.net/userfiles/files/94598414526.pdfIn PDF document text
- https://attackworkoutprogram.com/app/webroot/files/ckfinder/userfiles/files/1917487409.pdfIn PDF document text
- http://tfh-filter.hu/_user/file/koxekemuvusadamuvepe.pdfIn PDF document text
- http://happyland-nsk.net/ckfinder/userfiles/files/sebukoboxaletasufifurofi.pdfIn PDF document text
- http://n2nlah.org/UserFiles/file/77155595937.pdfIn PDF document text
- http://ophirtonhotel.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1606f9c176f60c---saxupinosupitidunojekode.pdfIn PDF document text
- http://animationcoach.com/userfiles/file/dekilawigeripizom.pdfIn PDF document text
- http://savvyais.com/userfiles/file/21130116956.pdfIn PDF document text
- https://dongcohonda.com/userfiles/file/3084429714.pdfIn PDF document text
- 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_off0000d8d4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8D4 | 17860 bytes |
SHA-256: 7509b7bec7eb67526db9e9a543b1fe79c8f46865bd3c9f8b4845c9fd16f7b4af |
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font_01_sfnt_off00010763.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10763 | 10928 bytes |
SHA-256: d1c449c5179c43960b452bea2462e81efe8d507be72daf453511a5f718e99371 |
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font_02_sfnt_off000120c2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x120C2 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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