MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links pointing to compromised WordPress sites, indicating a link farm designed to redirect users to malicious content. The ClamAV detection and ML classifier strongly suggest this PDF is malicious, likely serving as a phishing lure or a distribution point for further malware. No scripts were extracted, but the structure and embedded URLs are indicative of a phishing or redirection attack.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://laborke.ru/uplcv?utm_term=well+thought+of+synonym
- http://asirius.su/wp-content/plugins/super-forms/uploads/php/files/78753211cbd89db7e82685f1280a525e/91351536154.pdf
- https://brusroom.com/wp-content/plugins/super-forms/uploads/php/files/f0061b23e2310871c368ad86900f71de/15747670670.pdf
- https://www.davinci.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1609e0530aa064---xomaraxasi.pdf
- https://www.ayersworthglen.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606eaf4404a2c---tugen.pdf
- http://www.restorationservice.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160956c8b8914c---15184203336.pdf
- https://mygamedaysports.com/wp-content/plugins/super-forms/uploads/php/files/bd3f5802b0bbbdbafd721947f5e25881/xuziw.pdf
- http://zonwering-nederland.eu/ckfinder/userfiles/files/18554876787.pdf
- https://llibreriaha.com/img/events/file/61568380029.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2275a73fd0---85323544978.pdf
- https://rcot.org/userfiles/file/56703830464.pdf
- https://gift-edu.ru/wp-content/plugins/super-forms/uploads/php/files/acce87b848ff2811e8a5848b7fa04074/13167237182.pdf
- http://dragoniresorts.com/userfiles/52989936788.pdf
- https://diversifiedhumansolutions.com/wp-content/plugins/super-forms/uploads/php/files/204126cb343fc1ef534c686a631dcffe/68399665249.pdf
- https://holocaustresearch.pl/nowy/photo/file/nalawegajovukokituli.pdf
- http://richfield1960.com/clients/865265/File/danufis.pdf
- http://getampedmag.com/ckfinder/userfiles/files/xevawadajizafufe.pdf
- http://parkhighclassof60.com/clients/871169/File/84410173468.pdf
- http://for-rent-aalst.com/wp-content/plugins/formcraft/file-upload/server/content/files/16104b65975684---joxafubaxeritig.pdf
- http://studiocariola.com/userfiles/files/duxategotutisupuv.pdf
- https://artlabjo.com/userfiles/file/lofulutimotuwavejepe.pdf
- https://fmpride.com/wp-content/plugins/super-forms/uploads/php/files/c09eb9e7d919d7c72dfeaff027d770c7/21431431767.pdf
- https://www.onestopnaturalstore.ca/wp-content/plugins/super-forms/uploads/php/files/vt3ivgdcu163a4csblmq77hh2j/sizete.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_off0000df9d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF9D | 16792 bytes |
font_01_sfnt_off0000f7b4.binea35d82b28e0b45f555f7b52b3ab32ddfe3a5558f400e09d05aa4a09c39a7715 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7B4 | 10512 bytes |
font_02_sfnt_off00010f86.binc1b692de1fd5986586d4083aa13a9c395c9b9c7b296cea2c198ddc1690599747 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F86 | 17912 bytes |
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