MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file flagged by ML classifiers and ClamAV as malicious. It contains numerous links, many pointing to compromised WordPress upload directories or disposable hosting, suggesting a link farm used for phishing or malware distribution. The PDF structure and embedded content indicate it's designed to redirect users to external, potentially malicious, sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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://xn----8sbpvg0afdbe.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/durfp1trjmt1i4ud043905hid1/wirubexatupogowivij.pdf
- https://mariapolis.net/ckfinder/userfiles/files/petovubedepaxi.pdf
- https://lcd96.ru/wp-content/plugins/super-forms/uploads/php/files/08832a7c164fca4266db6975c7bdabb6/90226729980.pdf
- http://www.primalegal.eu/wp-content/plugins/super-forms/uploads/php/files/jkrcvfueqp1t41s7h135nsut67/12762226460.pdf
- https://dermatologie-chamonix.com/userfiles/file/waluxanukefidanurewode.pdf
- https://canvasations.com/wp-content/plugins/super-forms/uploads/php/files/83f828a7f4bb495b7a49f4eadb487c3d/94400234203.pdf
- https://www.thaiahpa.com/flash/files/tilubegofodaxibumukemesu.pdf
- https://www.duffylighting.com/wp-content/plugins/super-forms/uploads/php/files/d3b5d8a0823ed87125ade10501c012af/89350828841.pdf
- https://africanresearchcenter.com/userfiles/file/25528188945.pdf
- https://nanyangtextile.com/userfiles/file/xefasava.pdf
- http://akgikorea.com/file_upload/fck_upfile/file/24206062662.pdf
- http://keacg.com/upload/files/religojivob.pdf
- http://uyaviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c94182733c3---86248484096.pdf
- https://maidintown.co.uk/wp-content/plugins/super-forms/uploads/php/files/deb60c13dafe3dd2843b3dd63ef8c978/wixebumat.pdf
- http://yourtruck.be/upload/ckeditor/file/botujuwa.pdf
- https://cristiandellavedova.com/wp-content/plugins/super-forms/uploads/php/files/jaebafev829u0as8gerelv4hc7/84510619910.pdf
- https://vegas-shop.net/uploads/files/4220173549.pdf
- http://luxcottage.ru/stroykamen/userfiles/files/72143311203.pdf
- http://bouncebodysupplements.com/newerac2c/userfiles/file/voxaripebosujufut.pdf
- http://accessiblevehicleservices.com/userfiles/file/voziwuzubedubirelupix.pdf
- http://fleshlight-tw.com/userfiles/file/zarufixizeta.pdf
- http://boxerdapolenta.com/cmsimple/images/file/fivibefebodezubopizofite.pdf
- https://www.energetisch-therapeut-estie.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c9340ca5d7d---67099623046.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/DOqCt-cVA4I/uplcv?utm_term=physics+velocity+problems+and+solutions+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_off0001187f.bineb344689cc208b58e8bcf7b04066ba513d4a7c8845716f2bcee1ac990e07a8aa |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1187F | 18344 bytes |
font_01_sfnt_off0001491c.bin84c5dad6f0fa9f70acefb649ce34776ad4ee7eddcadd7509fac77cbf74f292ba |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1491C | 11308 bytes |
font_02_sfnt_off00016352.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16352 | 16792 bytes |
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