MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The sample was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It functions as a link farm, distributing numerous links across compromised CMS upload storage and disposable domains, likely to phish users or lead them to further malicious content. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic specifically highlights the use of disposable hosting for these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
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 http://xn--e1aazeoc7d.xn--p1ai/images/shared/file/tobutiniwisidunewerebixax.pdf
- https://velvetskin.pl/wp-content/plugins/super-forms/uploads/php/files/ec8a964117431275fee96d9a0fd818b1/vugulitisawuzavajodi.pdf
- http://remontnoedelo.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160ca79913bcea---80114943613.pdf
- http://alhouti.com/userfiles/file/78142806546.pdf
- http://kraljicabih.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c489d370437---90419378664.pdf
- https://www.femregenx.co.za/wp-content/plugins/super-forms/uploads/php/files/8nshamjr8gcu1v5bsfc5645pqe/34188148021.pdf
- https://www.infratechgroep.nl/wp-content/plugins/super-forms/uploads/php/files/2deb9aac0ff9f8337b6ea3977777662c/28927487428.pdf
- https://abouelhoulgroup.com/userfiles/files/jolutaxozodevurakeg.pdf
- https://theshairpodcast.com/wp-content/plugins/super-forms/uploads/php/files/b57e5e4f301d6800e8ee000f7333ab27/jujowodesojotafaxiboxupaz.pdf
- http://vilaportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa365adae9d---17603753604.pdf
- http://greece-ex.com/images/blog//file/41277535727.pdf
- http://gf-location.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1606da61c7a366---mejujofixipo.pdf
- http://www.louthadventures.ie/wp-content/plugins/formcraft/file-upload/server/content/files/1607569fab80dc---fejajimafatorerijov.pdf
- http://ahxxzx.com/userfiles/202105/file/bugatekirav.pdf
- https://85097781.com/upload/files/sibunesatusa.pdf
- https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16094e762dafb3---13696948606.pdf
- http://velo.hu/UserFiles//file/65268780606.pdf
- https://www.dyna-tech.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1606cc891926a3---kemutilidufotidowo.pdf
- https://wpsqld.com.au/wp-content/plugins/super-forms/uploads/php/files/4a389b1d3d0470bada6a3d918dbda613/puvazetepi.pdf
- https://www.simplythebestevents.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160af6eb600130---nikazovuzarabovo.pdf
- https://churchosonline.com/wp-content/plugins/super-forms/uploads/php/files/0e5d5fcbee5c53cd39c5b95a99d36c59/92679877334.pdf
- https://takeorders.online/wp-content/plugins/super-forms/uploads/php/files/745uapb3ni71223m1d0t9faagj/82821880985.pdf
- http://www.catalogodecineargentino.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8cc6bdca92---zajigubemajos.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=beltsville+md+to+dc
- 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_off0000e9dd.bind7e884641fec4877f9ed48921c2be71ba94dc68d075a3fbf52b34f43d3b2c334 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE9DD | 17300 bytes |
font_01_sfnt_off00011724.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11724 | 16792 bytes |
font_02_sfnt_off00012f3b.bin7cb72514a64ae0ed215e08a745f8b400e29049c0fba00a3cd9651a9a425bb304 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12F3B | 10284 bytes |
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