MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ML classifiers and ClamAV as malicious. Heuristics indicate it functions as a link farm, directing users to multiple external URLs hosted on potentially compromised or disposable domains. The presence of numerous links, many with 'utm_term' parameters, suggests an attempt to drive traffic for phishing or to distribute further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://educasters.co/ckfinder/userfiles/files/45379931334.pdf In PDF document text
- https://kasihpaham.com/contents/files/51609229049.pdfIn PDF document text
- http://kaitosushisb.com/uploads/files/46941931599.pdfIn PDF document text
- https://heuresromantiques.com/upload/files/8661816472.pdfIn PDF document text
- http://eluvial.com/sites/all/sites/eluvial.com/files/51997177859.pdfIn PDF document text
- http://churchontherockuk.org/home/churchontherock1/public_html/userfiles/files/46343401893.pdfIn PDF document text
- http://www.maarsehoveniers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1612fb1413443a---japuwe.pdfIn PDF document text
- https://solturism.ro/images/file/fozubujisedixalo.pdfIn PDF document text
- http://recruiters-zone.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613559ebb5422---nipabuk.pdfIn PDF document text
- https://optical-axis.com/uploads/files/202108312301298916.pdfIn PDF document text
- http://aviatroglo.fr/IMG/file/30598257511.pdfIn PDF document text
- http://ageddfjtjgrade.pretty-match.com/upload/files/tuwiguzasuzow.pdfIn PDF document text
- http://le-lemniscus-incandescent.fr/ckeditor/upload/files/43155169037.pdfIn PDF document text
- https://faresaldabbous.com/uploads/files/sutojiz.pdfIn PDF document text
- https://portofcrotone.com/dati/upload/file/rokebulub.pdfIn PDF document text
- http://imssp.by/data/images/fxeditor/file/dabimexugapisi.pdfIn PDF document text
- https://duext.com/wp-content/plugins/super-forms/uploads/php/files/1040da145a525226adb9cc1034c01d06/25177187211.pdfIn PDF document text
- https://tranhtreo.com/images/ckeditor/files/wagoguwapa.pdfIn PDF document text
- https://master.plus/wp-content/plugins/super-forms/uploads/php/files/fb7bf4d0f45ead1edaf3153a9a296221/xofeponanowilunogoro.pdfIn PDF document text
- http://land89.com/ckupload/files/piwebubufefivigevopi.pdfIn PDF document text
- http://sva-jeanroze.com/xmedia/file/9753658786.pdfIn PDF document text
- http://xn--m1age8bh.xn--p1ai/files/file/6916088254.pdfIn PDF document text
- http://lafenicealcamo.it/userfiles/files/kisubufajakokufu.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/A3Ryygt5BCM/uplcv?utm_term=read+no+longer+human+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_off0000df9f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF9F | 21700 bytes |
SHA-256: adb50988c48f5143db33fcc9adc12626c60436d7bac6211ac60ffefbb3297553 |
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font_01_sfnt_off000117ca.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x117CA | 10732 bytes |
SHA-256: a7244d675f1ffb78fac763388eb26555520c13bd9e130463aee07341419d02bc |
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font_02_sfnt_off00012ff6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12FF6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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