MALICIOUS
162
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a significant number of external links, many pointing to compromised WordPress sites. These links appear to be part of a link farm designed to redirect users to download pages, as indicated by the 'utm_term' parameter in one of the URLs. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.7561
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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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External URI info PDF_URIPDF contains an external URL action
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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://wastran.ru/uplcv?utm_term=download+game+billiard+offline+apk PDF link annotation
- https://jeevandeepspecialcare.com/ckeditor/ckfinder/userfiles/files/88325993170.pdfIn PDF document text
- https://biodez.lt/i/File/nomanetumotonoxatowon.pdfIn PDF document text
- http://multiseal.com.ph/wp-content/plugins/formcraft/file-upload/server/content/files/16133b20b1b048---19959277991.pdfIn PDF document text
- http://christschoolblr.in/userfiles/file/wojaxugefenojodinuguzis.pdfIn PDF document text
- https://vizzzio.ru/wp-content/plugins/super-forms/uploads/php/files/f2a587b617a438a388fdc7cb96c1b0a3/51768686337.pdfIn PDF document text
- http://www.frank-diagn.hu/userfiles/files/46849423919.pdfIn PDF document text
- https://fetogram.ir/images/upload/files/dulisiragata.pdfIn PDF document text
- http://vvk-wiedermann.at/userfiles/file/61776004565.pdfIn PDF document text
- https://geya99.com/ckfinder/userfiles/files/96398054743.pdfIn PDF document text
- https://noks.cz/wp-content/plugins/formcraft/file-upload/server/content/files/1613d25153436a---majeruwejo.pdfIn PDF document text
- http://graphicon.hu/wp-content/plugins/formcraft/file-upload/server/content/files/1613a5cf9dc989---12468893448.pdfIn PDF document text
- http://nessium.fr/userfiles/file/kavakunazixojed.pdfIn PDF document text
- http://etepi.pt/js/ckfinder/userfiles/files/notagesiluruxagi.pdfIn PDF document text
- http://jessie.vn/images/ckeditor/files/wukobixulemigokutiveko.pdfIn PDF document text
- http://indiebookoftheday.com/wp-content/plugins/formcraft/file-upload/server/content/files/16131fcf367087---38360400798.pdfIn PDF document text
- https://dynasty888.com/image/files/20210904_163439.pdfIn PDF document text
- http://yishiweb.com/upfiles/files/20210909_011702.pdfIn PDF document text
- https://gresathouse.com/wp-content/plugins/super-forms/uploads/php/files/94f4e4e8fe1f658661137879f0ea4456/gatunawizezodupajifafasu.pdfIn PDF document text
- http://nemeckystrakac.sk/editor_uploads/files/povarawefon.pdfIn PDF document text
- http://wedding-box100.com/uploads/files/202109100223357987.pdfIn PDF document text
- https://tennis94.fr/img/pics/files/bakumoxomesevetugogi.pdfIn PDF document text
- http://wirtrauenuns.ch/images/file/zexabawaxasejaxajexijavi.pdfIn PDF document text
- http://eldorautomaticgates.com/UserFiles/file/wubofaxozowejovijazupe.pdfIn PDF document text
- http://quangphong.vn/uploads/image/files/tepokubujilipodivad.pdfIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000dea1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDEA1 | 10896 bytes |
SHA-256: 46e51fc4b0c36e4c6b4b77c3300cd6dc7d877c54b7a29c249ed6ef9f17d70cdb |
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font_01_sfnt_off0000f75f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF75F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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