MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. Heuristics reveal it functions as a link farm, pointing to multiple external URLs hosted on compromised WordPress sites and disposable domains. These links are likely intended to redirect the user to a malicious payload or phishing page, aligning with a spearphishing attachment attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9912
Heuristics 7
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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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://393citizen.com/upload/files/89235445694.pdf
- https://www.sussexweddingservices.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16137f690cf7da---voruvetole.pdf
- https://ambulatorioveterinariosismondi.eu/file/xosogonuxijofipofij.pdf
- http://aryajob.com/user_upload/file/fubowadagolilifavabeni.pdf
- http://beijingteye.com/upload/files/bexujoretizifufefejinod.pdf
- http://problemconsulting.com/img/download/files/dagidigomu.pdf
- http://electriccityusa.com/images/fck_uploads/file/xapafefogenogibaz.pdf
- https://www.lindopoint.it/wp-content/plugins/super-forms/uploads/php/files/f030d50d978f206923b3ed0ff3816d83/79526683173.pdf
- http://novaserv.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132394627597---90764284057.pdf
- http://www.onekaddy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137c6094f562---4840497288.pdf
- https://nangluongvada.com/uploads/files/96386265923.pdf
- http://enotecagaribaldi.it/userfiles/files/duziporos.pdf
- http://jeyadhurgatemple.com/userfiles/file/xemar.pdf
- https://ssmahavidyalaya.org/lion/uploadedfiles/fck/files/file/muxex.pdf
- http://immopolignano.lu/images/sekilugopokuzevo.pdf
- http://smithmurdock.com/wp-content/plugins/formcraft/file-upload/server/content/files/161337f213eb63---94625899718.pdf
- https://mi-stores.com/basketballtotaal/images/editor/file/13240267728.pdf
- http://wernitznigg.at/files/98802752823.pdf
- https://tongdaidoanhnghiep.com/app/webroot/upload/files/movokafevatimu.pdf
- http://88cpap.com/userfiles/files/83177632394.pdf
- https://stiglic.sk/userfiles/file/40610620599.pdf
- http://aliceinformaticasrl.com/user/pages/50742059802.pdf
- https://vico-real-estate.com/ckfinder/userfiles/files/verenakidowizubizo.pdf
- http://www.shipsupply.co.mz/wp-content/plugins/formcraft/file-upload/server/content/files/1613637d2cf9e5---wuronexozinipafijenobob.pdf
- https://hilanguage-com-tw.triangle-design.com/files/fikofixujuwodogopirezux.pdf
- https://iphone-odklep.si/vsebina/26959717082.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=5e+creating+a+character
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f588.bin02e067aae1e8fabb1dad7ab6164f4b7acf715cbe74c56a5a01c4f3ece69e3c1f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF588 | 10212 bytes |
font_01_sfnt_off00010c5d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C5D | 16792 bytes |
font_02_sfnt_off0001246f.bin817d79167a56960177b15cb0d5b15c0d14870effb26152468f932f74b6a6d8af |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1246F | 18388 bytes |
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