MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a large number of external URIs, many of which point to compromised websites hosting other PDF files. This structure suggests a link farm designed to distribute malicious content or facilitate phishing. The presence of embedded JavaScript indicates potential for further exploitation beyond simple redirection.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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 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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://huntic.ru/uplcv?utm_term=how+can+i+use+sd+card+as+internal+storage
- https://abisspaandboutique.com/nbloom/fckuploads/file/dudawigogiriwilul.pdf
- http://comicpapyrus.com/wp-content/plugins/super-forms/uploads/php/files/1148590f05ea11e2d7bdb4fc8d727c4b/76174007701.pdf
- http://mtcongnghiepxanh.com/upload/fckimagesfile/fagekad.pdf
- http://sithome.com/upfiles/file/20210903010539.pdf
- http://sukhonthip.com/file_media/file_image/file/rifexu.pdf
- http://www.cddfct.com/up_files/file/minunezuwusowumosevufe.pdf
- https://comfortinnbarrie.com/phpsites/vertical_living/uploads/file/zipavasumakelejusogovu.pdf
- https://www.paparazzirestaurant.com.au/wp-content/plugins/super-forms/uploads/php/files/fa588ae198053d885989ecc167a7bbf9/mejobu.pdf
- http://elard-group.com/ckfinder/userfiles/files/8339896854.pdf
- https://madeinstlucia.com/userfiles/files/godujezegavigegibe.pdf
- https://tattica.byespresso.com/app/webroot/files/upload/files/vutimebazezudavexanobozij.pdf
- https://hotellemaritime.com/hotel/upload/files/51814876068.pdf
- http://proclima-membranes.ru/userfiles/file/meduk.pdf
- https://g55net.com/webpagebuilder/ckfinder/userfiles/files/91874996759.pdf
- http://brmhn.com/userfiles/file/20210913003327_yypaem.pdf
- http://evabody.ro/wp-content/plugins/formcraft/file-upload/server/content/files/161419a7367114---30878829532.pdf
- https://cairparavel.ro/app/webroot/files/userfiles/files/lizivolenitexasewudu.pdf
- https://purpleleafestatebuyers.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135e3f4ebf34---ruzodub.pdf
- http://pijntherapie.be/uploads/files/145422615.pdf
- http://pvvc.cz/files/45944344840.pdf
- https://rpdev.org/ckfinder/userfiles/files/21104497594.pdf
- http://studiodabo.eu/userfiles/files/gufojodujudiwebufomira.pdf
- http://emanuelarombiarchitetto.eu/userfiles/files/nuzulimo.pdf
- http://bluelakehomestay.com/uploads/image/files/besazekipevaje.pdf
- https://www.colegiodomus.com.br/js/ckfinder/userfiles/files/vomiximavuju.pdf
- 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_off0000d7e5.bin12bffb65cf71578af4126c69487c6e2b8f82cb63abe4f2101e74123e5d0aa991 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7E5 | 10720 bytes |
font_01_sfnt_off0000f073.bind729de262d40fcb92e2d7b5824dd3820eb344c49a656fb75510442ff07125753 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF073 | 16920 bytes |
font_02_sfnt_off00011c31.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C31 | 16792 bytes |
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