MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded URLs, many pointing to compromised WordPress sites or disposable domains, indicating a link farm designed to lead users to malicious content. The ML classifier and ClamAV detection strongly suggest a phishing or malware distribution intent. No scripts were extracted, but the structure and URL patterns are indicative of a malicious PDF.
Machine Learning
- Nyx PDF Classifier malicious score 0.9954
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 https://chcial.ru/uplcv?utm_term=supporting+bilingual+children+in+early+childhood
- http://loaamtran.vn/files/usersfiles/files/36018063095.pdf
- https://vickers-electronics.co.uk/wp-content/plugins/super-forms/uploads/php/files/9447e661077046fa5723d7899963c4e0/98297991234.pdf
- https://www.glasswindowequipment.com/wp-content/plugins/super-forms/uploads/php/files/a4bcd3a23e9a1d971cd4224e5e39502d/lafuzafibokesor.pdf
- http://bigandtallking.com/userfiles/file/1353219273.pdf
- https://wscnaturalhealings.com/wp-content/plugins/super-forms/uploads/php/files/c6a8df07a6b2b2d2ef963077eadd58fd/47213599814.pdf
- http://alimentosldm.com/userfiles/file/38342621223.pdf
- https://chokysitohang.com/Uploads/userfiles/files/fekebevufamuguvule.pdf
- https://donnasalon.ru/wp-content/plugins/super-forms/uploads/php/files/db08cccb79add867ecf9947fbb9a73ce/belamumakeboxotamojo.pdf
- http://www.studiolegalefusimorelli.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a5f8abc8fd4---97253216627.pdf
- http://thm-holding.ru/wp-content/plugins/super-forms/uploads/php/files/cc4436d116c004a4614e9896e169a019/texolobi.pdf
- https://www.davinci.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1606f1c9991d99---bijepuvorakeribajuzunoris.pdf
- https://neavocats.com/wp-content/plugins/super-forms/uploads/php/files/44427f97173613a446d681ae3ae459b5/39340386466.pdf
- http://analogsys.com/uploaded/file/225209024608f9798d4694.pdf
- https://cms.blauraum.com/wp-content/plugins/super-forms/uploads/php/files/1b85e22b4861fb9bdbcfb9f0f4f6d30d/55520148060.pdf
- https://www.nuyew.academy/wp-content/plugins/super-forms/uploads/php/files/34a73ac7caa08329b03320a7d8c2ded1/5961932766.pdf
- http://kkpump.com/FileData/ckfinder/files/20210616_D446A1B18723FA15.pdf
- https://makemycake.gr/wp-content/plugins/super-forms/uploads/php/files/tnq0re6oe29selb879h2io6eod/36592399717.pdf
- https://k9-warrior.com/wp-content/plugins/super-forms/uploads/php/files/tvtdeddhq1lrg9bffqf1rmodll/safibevamobazu.pdf
- http://www.lbf-cosmetics.com/website/wp-content/plugins/formcraft/file-upload/server/content/files/160c4093a92a70---56585642595.pdf
- https://sitebyside.ru/wp-content/plugins/super-forms/uploads/php/files/b1e6140284e5cf38fbe5e55a976aff30/21404229084.pdf
- http://arohitourandtravels.com/userfiles/file/12010102000.pdf
- http://tatugigo.com/ckfinder/userfiles/files/70447157863.pdf
- https://stewsites.com/wp-content/plugins/super-forms/uploads/php/files/c63d1ab2c24350c08f75663446ee8f36/9114228883.pdf
- https://oneremote.ru/wp-content/plugins/super-forms/uploads/php/files/7875c51c2a6dda476386fc090e299b8d/73005656314.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_off0000b905.binffe65a3135da04c9ad0a987aa7fea05ed5b42ffa06f35134ac1dbac23c88fe1f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB905 | 15268 bytes |
font_01_sfnt_off0000e03d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE03D | 16792 bytes |
font_02_sfnt_off0000f854.bin5239f9106711f97a68f28e2f3b4a92a3b01109b456904d70b68df83b50e373da |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF854 | 11052 bytes |
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