MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was flagged by multiple heuristics and ClamAV as malicious, specifically indicating phishing and trojan activity. It contains a large number of embedded URLs, many of which point to compromised CMS uploads or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://pistant.ru/uplcv?utm_term=function+of+a+square+wave PDF link annotation
- http://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e6b76759f8---69452724502.pdfIn PDF document text
- http://bk-plus.at/userfiles/files/vifatizexetexedonepuxavar.pdfIn PDF document text
- http://dunakeszi.varosom.hu/userfiles/files/53652127985.pdfIn PDF document text
- https://www.patisserie-flechais.fr/ckfinder/userfiles/files/4018432256.pdfIn PDF document text
- http://baocaosuhoatoc.com/luutru/files/25098539431.pdfIn PDF document text
- http://norilsk.torbay.ru/images/uploads/file/82852705374.pdfIn PDF document text
- http://tech-sub.com/userfiles/file/mezesutud.pdfIn PDF document text
- https://pkmoscow.ru/ckfinder/userfiles/files/goril.pdfIn PDF document text
- http://chamaeleon-produktion.cz/www/files/file/21047208355.pdfIn PDF document text
- http://becro-plast.hr/wp-content/plugins/formcraft/file-upload/server/content/files/16131818a913d5---togotebafigitofonesisivo.pdfIn PDF document text
- https://www.wroclawmodelshow.pl/ckfinder/userfiles/files/1263463579.pdfIn PDF document text
- http://liveranigioielli.it/userfiles/files/57333969554.pdfIn PDF document text
- http://alexlunacoach.com/img/editor/file/63284506533.pdfIn PDF document text
- http://www.moteco.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1614173cc25cfb---zupuxitalozutudow.pdfIn PDF document text
- http://cargologicru.com/sadm_files/bizanikebibesitijatepulaj.pdfIn PDF document text
- http://asacnfservices.com/ckfinder/userfiles/files/zetinepenakujafitumesuj.pdfIn PDF document text
- http://thegioichuyendong.info/app/webroot/upload/files/gudoverakireruligukubagi.pdfIn PDF document text
- http://hicoweld.com/shop/fck_file/file/wikemuzaligo.pdfIn PDF document text
- http://lovelyspa.net/ckfinder/userfiles/files/19954459351.pdfIn PDF document text
- https://ou-ravda.com/ckfinder/userfiles/files/gilapikuf.pdfIn PDF document text
- http://carrozzeriabosini.net/userfiles/files/84248101554.pdfIn PDF document text
- https://xistenze.nagydavid.com/files/files/sorewubufajaridukopemeso.pdfIn PDF document text
- http://gnatowski.pl/attachments/file/palepojilipotokejosi.pdfIn PDF document text
- https://strategieb2b.ca/userfiles/file/44686529183.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_off0000bb6e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBB6E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d380.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD380 | 17236 bytes |
SHA-256: 665af98d56f096fcfc0b8385d4c810188c0d3a239970c3ffe685896a295064b1 |
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font_02_sfnt_off0000ffc9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFFC9 | 10656 bytes |
SHA-256: 62851f5b3fb1e018b4ef21eb3aa091663751b1bd6923ecffc97c33e957815461 |
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