MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is identified as malicious by ML classifiers and ClamAV, with heuristics indicating embedded JavaScript and a high density of external links. The embedded links, such as https://queure.ru/uplcv?utm_term=adult+children+of+emotionally+immature+parents+free+pdf, suggest a lure to external content, likely for phishing or malware delivery. The presence of embedded JavaScript further supports the potential for malicious actions within the PDF.
Machine Learning
- Nyx PDF Classifier malicious score 0.8010
Heuristics 6
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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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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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PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILEDThe cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
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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://queure.ru/uplcv?utm_term=adult+children+of+emotionally+immature+parents+free+pdf
- https://egyediajandekotletek.hu/mvc/userfiles/file/17478174291.pdf
- http://pulsrmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f795bea554---bezuriruweranive.pdf
- https://camile.vn/wp-content/plugins/super-forms/uploads/php/files/t8tc5h44f3bjtlo5jpqc3u4nu5/33293171635.pdf
- http://pressvaluation.net/FCKeditor/editor/filemanager/connectors/userfiles/file/28164731015.pdf
- http://andrenickels.de/ckfinder/userfiles/files/xabibusaruvudusuj.pdf
- https://soyana.de/js/ckfinder/userfiles/files/lexotejesixifog.pdf
- http://sartor.ru/upload/files/47927359895.pdf
- http://www.electricman.in/demo/frontend/web/uploads/files/xalawakof.pdf
- http://isotope3.pm-ural.com/uploads/files/xoniwazidekatexixuv.pdf
- http://denprokhorov.ru/images/file/22894965830.pdf
- http://morakothotel.com/file_media/file_image/file/35637684143.pdf
- http://kruengrangthai.com/files/files/lilatobumovumo.pdf
- https://aildf.in/userfiles/file/lojif.pdf
- https://rajakeempat.com/contents/files/xafalubugugakiw.pdf
- http://cp-tournament.org/ckfinder/userfiles/files/11101399058.pdf
- https://hebatkeren88.com/contents/files/nukagomegu.pdf
- http://bigcool.net/webroot/img/files/jewifejuw.pdf
- http://chelseafoodmart.com/uploads/files/bopirazijevopu.pdf
- https://1877painters.com/FCKeditor/file/9472862118.pdf
- https://bya-ingenieria.com/ckfinder/userfiles/files/wovepodibonulexox.pdf
- https://virtrade.gr/userfiles_lybo/file/gowibosuwox.pdf
- http://yugreat.com/filespath/files/20210921144319.pdf
- http://cluster006.ovh.net/~greeters/be/ckfinder/userfiles/files/48161784959.pdf
- https://cakamuzejs.riga.lv/ckfinder/userfiles/files/pevamuzigolatezeredef.pdf
- 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_off0000b230.binf0bf0cc433ebefd339880f246a5877f95a5f0c4334767de73316d92caafdea73 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB230 | 14644 bytes |
font_01_sfnt_off0000d6b3.bine9bb4a117b6bc4c892273f361fe82e81ecfef5ccd6abb2a9832ee781264c8648 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6B3 | 11080 bytes |
font_02_sfnt_off0000f063.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF063 | 16792 bytes |
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