MALICIOUS
172
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains embedded JavaScript and numerous external links, some pointing to compromised WordPress upload directories, suggesting it's part of a phishing or malware distribution scheme. The presence of a 'download button' heuristic further supports the attack pattern of luring users to download malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9978
Heuristics 8
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://ketchas.ru/uplcv?utm_term=convert+eml+pdf+online+free
- http://www.immiflex.com/wp-content/plugins/formcraft/file-upload/server/content/files/16140c6f16b0f9---67184832084.pdf
- https://xn--psg-9lac.hu/files/files/sufubalosojadi.pdf
- https://proxkimya.com/resimler/files/wuwegu.pdf
- http://parzenica-bialka.pl/userfiles/files/vikinenap.pdf
- http://ncdesign.it/userfiles/files/xukatifu.pdf
- https://taperagi.com/contents/files/44307511121.pdf
- https://nicklason.se/ckfinder/userfiles/files/40848723392.pdf
- https://skl.deindrukdemo.nl/upload/files/vegilixojexakas.pdf
- http://tivatijapan.com/uploads/userfiles/file/9627285056.pdf
- http://chiari-web.com/ckfinder/optimist/files/86002562491.pdf
- https://weborder.cloud/userfiles/file///wowubajila.pdf
- http://asesorgubernamental.com/images/file/vimuvewefagafe.pdf
- http://getem.eu/files/file/58714318553.pdf
- http://www.itbaloch.com/wp-content/plugins/formcraft/file-upload/server/content/files/16135756b2e9bc---nazasinafo.pdf
- http://smepil.com/ckeditor/userfiles/files/baxujebanomoweru.pdf
- http://www.liveartsaskatchewan.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614101a947c9c---87562187241.pdf
- https://wheelmartthailand.com/image/upload/File/gorabezoludofemunowe.pdf
- http://antwerp-rentals.com/wp-content/plugins/formcraft/file-upload/server/content/files/16144bdb8df161---nojetivakisudo.pdf
- http://www.martiusstaden.org.br/js/ckfinder/userfiles/files/reguromu.pdf
- https://tahuacoop.com/cms_gpadmin2015/sgi_userfiles/userfiles/files/79670318948.pdf
- http://queensparkview.com/image/upload/File/fofivetawetigoxused.pdf
- http://drvision.org/wp-content/plugins/formcraft/file-upload/server/content/files/1614490365726b---15609331663.pdf
- https://szabobuszrendeles.hu/files/files/15510832083.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_off0000d670.bine0879aacc4e453468f587fb5de658704701fa0840fa66ddb19d2d630ed920b2c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD670 | 16412 bytes |
font_01_sfnt_off000100fb.binaa976369fd2d8fa6cd08b4c5859638e4fe8882d7f6ea18e29b84425324a8d151 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x100FB | 10424 bytes |
font_02_sfnt_off00011892.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11892 | 16792 bytes |
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