MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. Static analysis revealed it functions as a link farm, with numerous embedded URLs pointing to external sites. Several of these URLs are hosted on compromised WordPress installations or disposable domains, indicating a likely attempt to lure users to malicious content or phishing pages.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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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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://queure.ru/uplcv?utm_term=the+spiritual+meaning+of+444 PDF link annotation
- https://ajansnigde.com/resimler/files/lezuderuwofeteminusesuk.pdfIn PDF document text
- https://penzion-pod-rozhlednou.cz/img/file/mekokisew.pdfIn PDF document text
- http://www.absolutecateringla.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137431bb93fe---84166197782.pdfIn PDF document text
- http://klimagra.pl/images/wysiwyg_img/file/vupoxufimifiriwiwopanemu.pdfIn PDF document text
- https://levin-dent.ru/wp-content/plugins/super-forms/uploads/php/files/d93825e7a96336816ef0de24f1dd573b/18252160554.pdfIn PDF document text
- http://enjoy.sk/editor_uploads/system/files/36477524541.pdfIn PDF document text
- http://kxqcgs.net/filespath/files/20210916235051.pdfIn PDF document text
- http://infinity-c-t.com/userfiles/file/kivikamiju.pdfIn PDF document text
- https://classoft.ro/userfiles/file/pigulixeguj.pdfIn PDF document text
- http://yuhao-tech.com/userfiles/file/babitozokibipazup.pdfIn PDF document text
- https://magnumattachments.com/ckfinder/userfiles/Files/xomuburisojorosevoxozi.pdfIn PDF document text
- https://ewms.vn/wp-content/plugins/super-forms/uploads/php/files/71okfcasudahcka83p7j2l7gfr/61064149389.pdfIn PDF document text
- https://lean-ds.com/upload/editor/file/wijow.pdfIn PDF document text
- https://amthanhanhsangchinhhang.vn/upload/files/fegaladaxibupowilujuf.pdfIn PDF document text
- https://avenirpourtous.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16131d4497e87f---35917327202.pdfIn PDF document text
- http://nickels.design/ckfinder/userfiles/files/mamonumovevatijewas.pdfIn PDF document text
- https://home-consult.lu/userfiles/files/52716630938.pdfIn PDF document text
- https://siriusdynamics.com/assets/uploads/files/muravizenagigepaw.pdfIn PDF document text
- http://birizgardenhotel.com/userfiles/file/95097243585.pdfIn PDF document text
- https://ddshower.com/ckfinder/userfiles/files/wusedurulakexibosav.pdfIn PDF document text
- https://www.gs-gleichmann.de/wp-content/plugins/formcraft/file-upload/server/content/files/1613bc6aa5101e---58442252773.pdfIn PDF document text
- http://kondicionery-dolgoprudny.ru/upload_picture/file/tadewilomotuxorulifa.pdfIn PDF document text
- 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_off0000ea51.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA51 | 17504 bytes |
SHA-256: 5d7ebd016c0b1dbd2ebad2732a02c354cde6e71cf154d0484a9e8366c8489598 |
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font_01_sfnt_off000117ea.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x117EA | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00013001.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13001 | 10944 bytes |
SHA-256: e32dd1bf4bf75b01462f855f47f1014ad404e57daa9196a99a00d2a4fddbb976 |
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