MALICIOUS
196
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document was flagged by multiple heuristics, including a high-confidence ML classifier and ClamAV, indicating malicious intent. The 'SE_BROWSER_INSTALL_LURE' heuristic strongly suggests the document's purpose is to trick the user into installing a fake browser update or extension. While no scripts were directly extracted, the presence of numerous URLs, many pointing to compromised CMS uploads and disposable hosting, indicates a phishing or malware distribution scheme. The document likely exploits a PDF vulnerability to execute malicious code or redirect the user to a malicious site.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
Heuristics 7
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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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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 https://songod.vn/uploads/image/files/19640751620.pdf
- https://webmodeli.com/wp-content/plugins/formcraft/file-upload/server/content/files/160883a7101032---fuvuzawaxexazil.pdf
- http://hitecds.com/userfiles/file/42093348092.pdf
- https://lotte-ppta.com/beta/assets/file/xuwivukobowovomekow.pdf
- http://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b838daee8e9---miwaxato.pdf
- https://www.ptlittleflower.org/wp-content/plugins/super-forms/uploads/php/files/9mdff7fvnhhmj18si61d5tlf0t/lijulufujologem.pdf
- http://kapelski.pl/userfiles/file/neliwubutujoxizemoji.pdf
- http://cnex.cc/images/blog//file/28302627434.pdf
- http://viaterrestre.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16087d3e601e7c---nawifumikalapidoxi.pdf
- http://johndanton.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/42612087441.pdf
- https://a2designbg.com/userfiles/file/lekikegunediwutefijev.pdf
- http://audiomaster.se/wp-content/plugins/formcraft/file-upload/server/content/files/160df774ead679---63760495161.pdf
- https://stijsr.com/userfiles/file/2393310630.pdf
- https://masihpt1.com/contents//files/jenowiwedozuz.pdf
- https://loan-financial.com/wp-content/plugins/super-forms/uploads/php/files/3850ac91f66f0b2fd14603ac8da18bbe/62357090952.pdf
- https://samowar.ch/upload/file/neremilexatepirolesunafi.pdf
- https://sipare.com.ar/wp-content/plugins/super-forms/uploads/php/files/gs41cptr60u3ibsfdmdrcp55f6/sojelatamaxetuwedev.pdf
- http://orourkelawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/kotumaxozetarawagedaj.pdf
- https://jerseyshorepirates.com/userfiles/files/nazapomipumoma.pdf
- https://bykevin.com/wp-content/plugins/super-forms/uploads/php/files/69623483e76df776944394c2a0f8604a/86635150771.pdf
- https://evg-prague.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1608a99c129ffc---lomenixoxejisu.pdf
- http://www.expo-hotel.com/english/wp-content/plugins/formcraft/file-upload/server/content/files/1606c937b47368---jaruzerikapo.pdf
- http://escolacaritas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ca9e6a826c---74932240354.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=download+office+2016+64+bits+full
- 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_off0000f453.bin30f86b0974ecc9656279cd279589df5a6a4e0ce38db2763b9c06eb59390d4142 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF453 | 17504 bytes |
font_01_sfnt_off0001226d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1226D | 16792 bytes |
font_02_sfnt_off00013a84.bina87b885a49dc215052567d3e5990d69a429d96cfaf7663a5cb7a4134425dd0e8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13A84 | 11236 bytes |
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