MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
The file was identified as malicious by a ClamAV signature and an ML classifier. It contains numerous embedded URLs, many of which point to compromised CMS upload storage or disposable hosting, indicating a link farm designed to redirect users. The presence of these links suggests an attempt to lure victims to external malicious sites, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://gniortho.com/files/Upload/file/18734403167.pdf
- http://yds-wcv.jp/free_images/files/52173201900.pdf
- http://www.everhouse.lt/wp-content/plugins/formcraft/file-upload/server/content/files/1613a07530a2ca---wemepobuxinobas.pdf
- https://tckontrola.hr/files/92794152474.pdf
- https://clifestyle.net/uploades/userfiles/file/tajoxetokewuwazep.pdf
- http://baominhlabors.com/upload/files/9490796556.pdf
- https://dbjadow.pl/attachments/file/33276378386.pdf
- http://trungnguyenjsc.vn/uploads/image/files/17606823386.pdf
- https://masterpieces-mallorca.com/wp-content/plugins/super-forms/uploads/php/files/df3700d627fa807f31a86f602ea8e48a/migigogolilekivegafevab.pdf
- http://conservationenergy.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133aeb75bdf2---98510760937.pdf
- http://jessie.vn/images/ckeditor/files/wuzud.pdf
- https://worldpigment.com/image/upload/File/mogelutiwuwulesugunawo.pdf
- https://threadworx.com/thread/admin/uploads/file/82968410758.pdf
- http://dc-07b6a75bc4d0.breakthrough-physical-therapy.com/userfiles/files/nevijiginasatidotoz.pdf
- https://agroadvanced.com/app/webroot/newsletters/editor/files/15413669074.pdf
- http://www.horakgolf.cz/ckfinder/userfiles/files/8127098026.pdf
- https://barrier.exma.cl/ckfinder/userfiles/files/sevowugizukonatexoba.pdf
- https://shaplaconsulting.com/app/webroot/ckfinder/userfiles/files/fumifov.pdf
- http://focalthai.com/file_media/file_image/file/15959745777.pdf
- http://www.sictombbi.fr/ckfinder/userfiles/files/pasususox.pdf
- http://shahnawazonline.com/uploads/files/botexiz.pdf
- http://klingende-zeder.de/wp-content/plugins/formcraft/file-upload/server/content/files/161370fec93b77---59782287335.pdf
- http://canadanur.com/resimler/files/57949852766.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=shadow+blade+reload+apk
- 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_off0000db91.bin03503b0ff880b52564b23d896998b211e9a4ddc3e147c1f2e92c9d736337c1c5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB91 | 18220 bytes |
font_01_sfnt_off00010b3c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B3C | 16792 bytes |
font_02_sfnt_off00012353.bin3389d5669b1f7cf15a3a5e47c8d6cdf124618d8afccae77e9109bdd7eaa9a44b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12353 | 10420 bytes |
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