MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate the document functions as a link farm, with numerous URLs pointing to compromised WordPress installations. These links likely serve as lures to redirect users to malicious sites for phishing or further payload delivery.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://pistant.ru/uplcv?utm_term=antonymes+fran%C3%A7ais+pdf
- https://leesman.com/wp-content/plugins/super-forms/uploads/php/files/2c072c854c854491875a522aa04b5a27/21367503882.pdf
- https://space1500.com/wp-content/plugins/super-forms/uploads/php/files/1f7565f48bb653c9e26416f53d7066c9/manuripelilo.pdf
- http://zaragozalawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/divuxuriwidezurisu.pdf
- http://thefutureofgolf.eu/wp-content/plugins/formcraft/file-upload/server/content/files/1606fae192160f---29457624504.pdf
- https://blueridgelightingandcontrols.com/wp-content/plugins/super-forms/uploads/php/files/323b65a5dc7e76ae8d42712946b287b2/23175679287.pdf
- http://bagandpack.ru/wp-content/plugins/super-forms/uploads/php/files/0e33fc98fdcf83b2b9fc075b22391f5c/2599067235.pdf
- http://redwoodpwr.com/wp-content/plugins/super-forms/uploads/php/files/q5n5e0bhv4sdl6pm7relqeg4m2/sobunujamabepinejodigo.pdf
- https://mymango.ru/wp-content/plugins/super-forms/uploads/php/files/b424ea0d2669e322bc6a4acf2ad9515c/derukijurawogagidoti.pdf
- https://veritiesinstitute.com/wp-content/plugins/super-forms/uploads/php/files/c607810c6c21bd18330913d17b3e65c2/bezitamedodanofufal.pdf
- http://www.siscard.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d8efe6065e3---muritelowinij.pdf
- https://stellabakingcompany.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b4379c5cbdb---16920267074.pdf
- https://siriusdynamics.com/assets/uploads/files/galiwurikuwomagilete.pdf
- https://ever-progress.com/upload/files/39171747609.pdf
- http://cloverpark1961.com/clients/6/6a/6a73a08bb68f643008adb5efbbb44e43/File/rumile.pdf
- http://www.birapart.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607784f20a55b---74449928414.pdf
- https://aquariumfargo.com/wp-content/plugins/super-forms/uploads/php/files/8f9a4e7bf3069094794fdd3585e8b195/45463963241.pdf
- https://voicelux.ru/wp-content/plugins/super-forms/uploads/php/files/b8953ebca3215971fbdd95e382a5cd8d/mafapomavafabeja.pdf
- https://coonvalleycc.com/userfiles/file/jaguwemole.pdf
- https://ohligschlaeger-berger.de/wp-content/plugins/formcraft/file-upload/server/content/files/160a913483e51e---wunubelifipogedafubenudib.pdf
- http://kondicionery-vidnoe.ru/upload_picture/file/57047494244.pdf
- https://gites-les-bardots.com/userfiles/file/74104487615.pdf
- http://70sromans.com/clients/871711/File/vaken.pdf
- https://www.vedaaz.com/wp-content/plugins/super-forms/uploads/php/files/990361093eb2ebdd33a99901ee826bb0/19737989345.pdf
- https://paymentor.nl/uploads//file/82770561656.pdf
- https://makeswebsites.com/clients/c/c8/c8c605999f3d8352d7bb792cf3fdb25b/File/69680988278.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_off0000d5ed.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD5ED | 16792 bytes |
font_01_sfnt_off0000edff.bin14e55df8dee247d7611badbd55f2b464455cc02ae54783e70c8d2b1a13df53d1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEDFF | 19484 bytes |
font_02_sfnt_off00011f95.bin622dd9311ee66b4849fbb845f516bc169e9d7929ed3469ade51d75cf648123f1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11F95 | 10904 bytes |
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