MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. The heuristic 'SE_BROWSER_INSTALL_LURE' indicates the document attempts social engineering to prompt the user to install a browser extension or update. While no scripts were explicitly extracted, the presence of numerous external links, some pointing to compromised CMS uploads and disposable hosting, suggests a phishing or malware distribution attempt. The document's structure and embedded links align with a phishing attack aiming to compromise user credentials or deliver further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
Heuristics 7
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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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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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://www.fashiongale.ro/userfiles/files/zexunumokorivulinanese.pdf
- http://strojsteel.cz/webpagebuilder/ckfinder/userfiles/files/gexogirunatatigujox.pdf
- https://www.onestopnaturalstore.ca/wp-content/plugins/super-forms/uploads/php/files/9m1d3lju5d71q6jgik58b6pfht/netimobapufanagawo.pdf
- https://www.ciabrini-immobilier.com/wp-content/plugins/super-forms/uploads/php/files/15i5tnfn7m31nr42n99srs6cvm/mofifafiviwu.pdf
- http://tech-sub.com/userfiles/file/54054281961.pdf
- http://feach.ie/images/uploads/file/3791113118.pdf
- https://www.sharpeningfactory.com/wp-content/plugins/formcraft/file-upload/server/content/files/16130a70c6eb5c---gonaxeronenojixuluvif.pdf
- https://trystsalonri.com/images/file/37771651616.pdf
- http://www.kickcommerce.com/userfiles/file/67187693515.pdf
- http://sarljarry.fr/userfiles/file/sezuxagokomopabogazavilaw.pdf
- https://www.euroservicemilano.it/wp-content/plugins/formcraft/file-upload/server/content/files/16140d6cad17db---12128524730.pdf
- https://es21sys.com/userfiles/file/53519526175.pdf
- http://www.mattig-accounting.bg/fisiere/file/patasevelufora.pdf
- https://beldaoyun.com/calisma2/files/uploads/nibijerevuravililat.pdf
- https://noble-worldwide.com/wp-content/plugins/super-forms/uploads/php/files/2ee3307818c2aadb40cee47dff8e654c/90270588117.pdf
- http://mutitar.com/user_img/files/53795896655.pdf
- http://dreambeauty.kr/upload/fckeditor/file/pogike.pdf
- https://www.ijdsir.com/ckfinder/userfiles/files/20819353007.pdf
- https://schreinerheusi.de/wp-content/plugins/formcraft/file-upload/server/content/files/16136326ac25a6---nuzetamev.pdf
- http://fxlcd.com/upload/file/mezoroso.pdf
- http://www.peritaonline.es/ckfinder/userfiles/files/biwijulidejumefanidus.pdf
- http://nyitotthetvege.kastelyszallodak.hu/userfiles/files/54103010299.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=chrome+night+mode+ios
- 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_off0000bbcd.bin2d48d4cd609abb3a1761db274cfea31f17b1844f7eae8e9038265a541f8a45ae |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBBCD | 16732 bytes |
font_01_sfnt_off0000e73d.bin45b784fae8d902c4db3147f087ddec6423581cc2a20cb43f484288d646584300 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE73D | 10520 bytes |
font_02_sfnt_off0000fecd.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFECD | 16792 bytes |
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