MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs that form a link farm, with several pointing to compromised CMS uploads or disposable hosting, suggesting an attempt to obscure the final destination. The presence of external URIs and link farms indicates a likely phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
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://huntic.ru/uplcv?utm_term=assign+tone+to+contact+android PDF link annotation
- http://archi-m.ru/userfiles/file/bilitorapenu.pdfIn PDF document text
- http://wideanglepackaging.com/ckfinder/userfiles/files/65064107616.pdfIn PDF document text
- https://tennis-samara.ru/img/file/70601890510.pdfIn PDF document text
- https://thaiahpa.com/flash/files/62631356165.pdfIn PDF document text
- https://webmakler.org/userfiles/file/lanobu.pdfIn PDF document text
- http://www.chiringuitomediterraneo.com/ckfinder/userfiles/files/5932453801.pdfIn PDF document text
- https://www.edutechusa.com/wp-content/plugins/formcraft/file-upload/server/content/files/16147f578105fa---porikipipivu.pdfIn PDF document text
- http://benevolo.it/userfiles/files/pizodovovanesiboxu.pdfIn PDF document text
- https://y3stwk65l-mn9.com/contents/files/67488125651.pdfIn PDF document text
- http://csc0451.com/userfiles/file/20210904125738_cyp1xg.pdfIn PDF document text
- http://www.electricman.in/demo/frontend/web/uploads/files/poxesebumikinodi.pdfIn PDF document text
- https://castilloexterior.es/ckfinder/userfiles/files/detijobapopapirinomej.pdfIn PDF document text
- http://soles2walk.cz/data/file/juranezudagejesixote.pdfIn PDF document text
- http://www.onegelha.com/wp-content/plugins/super-forms/uploads/php/files/f1c263685452035fba1db7a2f7122d53/18227345735.pdfIn PDF document text
- http://etspak.com/survey/userfiles/files/85030988049.pdfIn PDF document text
- http://thenikharvconsultancy.com/userfiles/file/68010816854.pdfIn PDF document text
- https://landlorddebtadvisory.com/wp-content/plugins/super-forms/uploads/php/files/36b11686ab4c541141ef5725870b4463/zevesadoxeburevuf.pdfIn PDF document text
- http://halanmilk.com/upload/files/56579857586.pdfIn PDF document text
- https://peoplesmodelinternational.com/ckfinder/userfiles/files/67386239568.pdfIn PDF document text
- http://greenbiotech.vn/uploads/userfiles/file/puzokukodoxat.pdfIn PDF document text
- http://goodwill.pl/userfiles/file/49799989804.pdfIn PDF document text
- https://414movement.com/wp-content/plugins/super-forms/uploads/php/files/4a7d1445408ba3aed13a7e89fdaac877/86624973814.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_off0000b592.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB592 | 10480 bytes |
SHA-256: 961d0a7899c2f338856cf348a43c3b43b13b584e7821b1d22c0e3d2e66c24486 |
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font_01_sfnt_off0000cd55.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD55 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000e567.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE567 | 18632 bytes |
SHA-256: 6d557b513e56c1daa5910450e4ea074f0d9d1d16ad233bf1b75610e8ccd02a95 |
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