MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The sample is a PDF file identified as malicious by ClamAV and an ML classifier. It contains numerous embedded URLs pointing to compromised WordPress sites, suggesting it's part of a link farm designed to redirect users to malicious content. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic further supports this, indicating a tactic to distribute links across potentially disposable hosting for SEO manipulation or to evade detection.
Machine Learning
- Nyx PDF Classifier malicious score 0.9806
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://nomylo.ru/uplcv?utm_term=keyboard+and+mouse+vrchat
- https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/ed0fce4a14b191ffdfcc2172940866ef/xuziditimakenazodo.pdf
- http://slowjamsundays.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607739741daa4---wilisuzifenitajobuva.pdf
- http://whitefamilyreunion2020.org/clients/4/4c/4c64578d40ee165aaf486c9a1ef3309b/File/22598293971.pdf
- http://www.klpreschool.com/wp-content/plugins/formcraft/file-upload/server/content/files/16088bbca00b9c---16341844608.pdf
- http://argentum.com/wp-content/plugins/super-forms/uploads/php/files/8lb9tov1t3pupcnb9dd706590i/birupafafewasofuvofilan.pdf
- https://burkina-businessschool.com/business_school/uploads/file/67315438814.pdf
- http://www.mvdisposal.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607fed28cecab---mogimibotexexuxufudobuf.pdf
- http://www.oknookna.pl/wp-content/plugins/formcraft/file-upload/server/content/files/160b894f3d681a---6577538196.pdf
- https://andrejc.si/files/file/80062346715.pdf
- http://mcalesterhighschool1960sreunion.com/clients/e/e6/e641a1dc2b4fc8b0483efb779338bfbd/File/91479180387.pdf
- http://peneleos.pl/userfiles/file/tijirunemejonedurone.pdf
- https://stcatherine.ac.ug/wp-content/plugins/formcraft/file-upload/server/content/files/160a46cd516710---65169424680.pdf
- https://ceral.pl/ceral/pliki/file/rovufularujifu.pdf
- https://balajitutorial.com/admin/userfiles/file/vujilirezeti.pdf
- http://slanfusa.org/clients/47225/File/jivefotijodepevinobe.pdf
- https://gresathouse.com/wp-content/plugins/super-forms/uploads/php/files/a063c6614930d219bc1ae5be36117816/gozetidiwi.pdf
- http://rufullthrottle.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609087c0b3458---temamumolukomuzi.pdf
- http://www.kliningstroy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608428f97ff70---zoxexe.pdf
- https://www.getfitcrew.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b2cb371c5b3---lezikopomikonolo.pdf
- http://somersetcountybar.org/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/11436497080.pdf
- https://alismobile.co.uk/wp-content/plugins/super-forms/uploads/php/files/0c409c7ec8bba675bc46acc2a91ef796/98678126129.pdf
- http://www.patriarca-batiment.com/ressource/site-image/files/4017376965.pdf
- http://royalgoodviewresort.com/Uploads/file/kabajiponumafixorulaj.pdf
- https://vaytieudungtragop.com.vn/wp-content/plugins/super-forms/uploads/php/files/hc09m1h5qmuepj2hqgocnro8kd/7404619724.pdf
- http://gernano.eu/gfx/userfiles/files/78826666336.pdf
- https://shrmivirtual.org/wp-content/plugins/super-forms/uploads/php/files/cc6f3b271060efcc7ac7273b9c3227ed/44539586683.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_off0001122c.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1122C | 16792 bytes |
font_01_sfnt_off00012a43.bin2bd21ed9f41cabf1866122976841ebd939de4c247b09d36df7414b715a5905d8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12A43 | 10908 bytes |
font_02_sfnt_off0001435f.bin267654fc22a14cc8c0a9ed0301c337203aaf99d35cc242e20cc2cf6e403912f2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1435F | 19000 bytes |
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