MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was flagged by ML classifiers and ClamAV as malicious, indicating a high likelihood of malicious intent. Heuristics identify it as a link farm pointing to compromised CMS uploads and disposable hosting, suggesting it's designed to redirect users to malicious sites. The embedded URLs, such as 'https://pixomot.ru/uplcv?utm_term=what+is+the+definition+of+pdf', are likely part of this redirection scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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://pixomot.ru/uplcv?utm_term=what+is+the+definition+of+pdf
- https://healthlantern.com/ckeditor/ckfinder/userfiles/files/gobosoxokeme.pdf
- https://plentis.eu/ckfinder/userfiles/files/lawumevopenujuzuxixara.pdf
- http://arcadia-fitness.es/userfiles/file/13167714662.pdf
- http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/i5d0ufc0o4tfqpqcotg6dkpsko/80001416615.pdf
- http://fsnmmaterials.com/UPFILE/userfiles/files/88701308654.pdf
- https://perfectsextherapy.com/public_html/userfiles/file/70892186347.pdf
- http://pastoret.it/userfiles/files/68347208501.pdf
- http://www.toptehnik.si/images/kugunadiravilav.pdf
- http://lejuriste.ru/files/file/77530274950.pdf
- http://fotografoenricogiampieri.it/userfiles/files/satuva.pdf
- https://sportnazona.bg/f/uploads/files/32149293530.pdf
- https://www.simcoerecovery.net/wp-content/plugins/super-forms/uploads/php/files/19g7jqsqov8ae0uaqbcfbtg0su/57775986405.pdf
- http://bright-inter.com/file_media/file_image/file/4187712193.pdf
- https://e-ceramika.pl/userfiles/file/pulavaxiwumulidefojarus.pdf
- http://denki-shonan.com/uploadsfile/ponuxupazejubake.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/161345fb1a5118---81388537252.pdf
- http://careerhack.net/wp-content/plugins/formcraft/file-upload/server/content/files/1613de1b62f74e---wukujelunujugivaxudari.pdf
- http://eyela.kr/uploadfile/fckeditor/file/jekaku.pdf
- http://ratchadatitan.com/UserFiles/File/27276435224.pdf
- http://kazenergy.kz/wp-content/plugins/formcraft/file-upload/server/content/files/1613a4877790a1---sodedako.pdf
- http://jan-fotografie.nl/upload/files/zonufudikilojadepubaxo.pdf
- https://avis-medical.ma/wp-content/plugins/super-forms/uploads/php/files/748e3717842137b47e1c8c0fc88a8645/mowukedijomafus.pdf
- https://laznia-radom.pl/userfiles/file/ramukikitesegodepenilovo.pdf
- http://twgo8.com/uploads/base/files/202109012326122554.pdf
- https://vallejardin.com/wp-content/plugins/super-forms/uploads/php/files/3e1436ee9360f2c24871ec4dc29ff194/mofagifetajixot.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_off0000d166.bin2ab4375bf08158e60e8f3f89aca1832dcf83d4a3d5fdb9bc51bb75fb72432ff8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD166 | 10444 bytes |
font_01_sfnt_off0000e908.bina6b87b2bd5d11189eb89b3c79ac15737ab1bac2dc77d5ad234c5ffc731b74706 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE908 | 18028 bytes |
font_02_sfnt_off00011819.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11819 | 16792 bytes |
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