MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV detecting it as a phishing trojan. The document contains numerous links to external websites, many hosted on compromised WordPress sites or disposable domains, suggesting a phishing or malware distribution campaign. The presence of embedded URLs and the nature of the heuristics indicate an attempt to redirect the user to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://huntic.ru/uplcv?utm_term=sum+of+harmonic+sequence+formula
- http://asijskepotraviny.cz/files/file/23064937218.pdf
- https://harpethvalleypto.org/wp-content/plugins/super-forms/uploads/php/files/229c7014bd141a0e9c948b864fe471ad/nopabuwadumapozop.pdf
- http://ajarnveerapong.com/UserFiles/file/mirapojofeda.pdf
- http://www.enredmail.com/templates/files/idCliente_/file/45199231545.pdf
- https://used-machinetools.ro/app/webroot/files/userfiles/files/39780335292.pdf
- https://gilbertems.com/videos/file/lewuredepizesezuxivukor.pdf
- https://pelicanfinancialnetwork.net/ckfinder/userfiles/files/saregaxasexenurukisuv.pdf
- https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1613362617507c---17395543110.pdf
- http://s2group.pl/userfiles/file/xaviwotuxukezego.pdf
- http://ozdoby-betonowe21.pl/Upload/file/bekasitu.pdf
- http://ecolservizinettuno.com/userfiles/files/nivenupoxasad.pdf
- http://flemingdecal.com/uploads/assets/file/malidatawaj.pdf
- https://franchise-vietnam.com/app/webroot/img/files/wiranoz.pdf
- http://longchimvac.net/app/webroot/uploads/files/40816430601.pdf
- https://irish-setter-zucht.info/ckfinder/userfiles/files/riliwatexevovekeponawem.pdf
- http://lapmaymn.samdigroup.vn/app/webroot/upload/files/95073114822.pdf
- http://www.sbawerribee.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1613315dc0b46a---95146983212.pdf
- https://www.idromeccanicasrl.com/idromeccanicasrl.com/wp-content/plugins/super-forms/uploads/php/files/4f47040beca8ed1ef11bc42082e4011f/bikatabigof.pdf
- https://cutletsmeat.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614073b49cfe4---vuruzesejibujosobasi.pdf
- https://salonrewards.ca/images/file/11298912354.pdf
- http://sowa-architekci.pl/userfiles/files/deviduguxaxadilofojagap.pdf
- http://impressivetravelvietnam.com/upload/files/kojedovibawizolixipamaf.pdf
- http://sin-hua.org/userfiles/41331208696.pdf
- http://mixline.ru/img/lib/file/62141014431.pdf
- http://jingmingtai.com/filespath/files/20210906185920.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_off0000f8d9.bin8e50c0cac139de68c32615721e329e155ad69df3f227cd46e609497d5052533c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8D9 | 10824 bytes |
font_01_sfnt_off00011194.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11194 | 16792 bytes |
font_02_sfnt_off000129a6.bine646b960ae7a439917b679eab9966fa333dea5e24c4e19ed7ccfdd6f1a5566ce |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x129A6 | 18332 bytes |
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