MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is a common technique for exploiting PDF vulnerabilities or redirecting users. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates the PDF is part of a link farm, suggesting a phishing or spam campaign. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or distributing further malware via the numerous external URLs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
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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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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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://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1613635cc29186---kukik.pdf In PDF document text
- http://elisa5888.com/shopadmin/upload/files/46208203595.pdfIn PDF document text
- http://innospectrum.eu/hirlevel/file/75617117382.pdfIn PDF document text
- http://sziszolg.hu/editor_up/sanugipidemira.pdfIn PDF document text
- http://maezawa-jidousha.com/js/upload/files/15825463684.pdfIn PDF document text
- http://americasbestmanassas.com/uploads/files/57849654110.pdfIn PDF document text
- https://ceiling.holcom.vn/webroot/img/files/wobovanajusewijoba.pdfIn PDF document text
- http://bctlorraine.org/userfiles/file/61261994866.pdfIn PDF document text
- http://abwlanham.com/uploads/files/3682984124.pdfIn PDF document text
- http://www.gleason.com.au/application/third_party/ckfinder/userfiles/files/divetepefajinamerudorugi.pdfIn PDF document text
- https://xn--interpeas-r6a.es/upload/files/nokivimodovefinelon.pdfIn PDF document text
- http://margheritango.it/userfiles/file/jelewuxivawabuj.pdfIn PDF document text
- https://psg66.ru/admin/ckfinder/userfiles/files/nizewodidufunituweraf.pdfIn PDF document text
- http://redondoclassicburger.com/uploads/files/siripodujujote.pdfIn PDF document text
- http://penzion-u-zamku.cz/files/file/bubunajawawupubomojenag.pdfIn PDF document text
- http://adice-area.com/pictures/files/xudejuda.pdfIn PDF document text
- https://mannerfeltdesignteam.se/ckfinder/userfiles/files/vumojajezixeruxuk.pdfIn PDF document text
- https://registracijakoncar.com/webroot/js/ckfinder/userfiles/files/giromobe.pdfIn PDF document text
- http://area100impianti.it/userfiles/files/4085058578.pdfIn PDF document text
- https://themalc.org/files/file/potoleve.pdfIn PDF document text
- https://bbpartner.cz/userfiles/file/vuzewu.pdfIn PDF document text
- https://denimder.org/resimler/files/sedabujolita.pdfIn PDF document text
- https://www.institutvzdelavani.cz/files/dalofafekot.pdfIn PDF document text
- http://jhdjt.com/images/upload/File/72513020376.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/3CAf4wW3hvY/uplcv?utm_term=boruto+episode+watch+onlinePDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b345.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB345 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000cb57.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB57 | 15292 bytes |
SHA-256: efdb4179df883be365e608dcda2580fed29a796ad8bc0daf3e613812aeaf7587 |
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font_02_sfnt_off0000f1fd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1FD | 10852 bytes |
SHA-256: bfb5fea2f1267d2d84984f4ddf0bd227e016975d060968f559190a3b78a09275 |
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