MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs pointing to various domains, many of which appear to be part of a link farm designed to redirect users. Heuristics indicate these links are hosted on potentially compromised CMS uploads or disposable hosting, suggesting a phishing or malware distribution scheme. The ML classifier and ClamAV detection strongly indicate malicious intent.
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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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://laborke.ru/uplcv?utm_term=how+to+back+up+phone+android PDF link annotation
- http://curry-box-deluxe.de/userfiles/file/44942510168.pdfIn PDF document text
- http://stainless-faucet.com/uploads/htmlupload/files/95413155458.pdfIn PDF document text
- http://getawaynewzealand.co.nz/wp-content/plugins/formcraft/file-upload/server/content/files/1614c037d57b16---bikunirox.pdfIn PDF document text
- https://delcinfo.ru/img/files/files/meseka.pdfIn PDF document text
- http://labradory.pl/file/26498083700.pdfIn PDF document text
- http://nikkenj.com/userfiles/file/55543219474.pdfIn PDF document text
- http://www.immo-uno.com/ckfinder/userfiles/files/94384381980.pdfIn PDF document text
- https://hotelexpert.ro/uploads/files/kakigimovovoga.pdfIn PDF document text
- http://www.kindytennis.com/wp-content/plugins/formcraft/file-upload/server/content/files/161507bc8e7cec---tefipe.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614bb2f403180---niximegevelovenet.pdfIn PDF document text
- https://justforjetscatering.com/userfiles/image/files/87537876800.pdfIn PDF document text
- http://2013.letnifestiwal.pl/ckfinder/userfiles/files/97986750495.pdfIn PDF document text
- https://efsanepin.com/calisma2/files/uploads/98262470017.pdfIn PDF document text
- https://mosaicopeoplecorporation.com/ckfinder/userfiles/files/63510974884.pdfIn PDF document text
- http://kokocurry.gm/userfiles/file/51598265183.pdfIn PDF document text
- http://innotec-industrie.be/userfiles/file/38774275738.pdfIn PDF document text
- http://ownlines.com/upfiles/file/fuzidodif.pdfIn PDF document text
- https://techlan.pl/files/file/61464532527.pdfIn PDF document text
- https://hostsolutions.ro/app/webroot/files/userfiles/files/99108536387.pdfIn PDF document text
- https://enilubricantvn.hoakhanh.vn/uploads/image/files/72181294008.pdfIn PDF document text
- http://kerekesvillszer.hu/UserFiles/file/86866606474.pdfIn PDF document text
- https://hkparkkonutlari.com/image/files/13813878392.pdfIn PDF document text
- http://giayviettri.com/img-ftec/files/66885958781.pdfIn PDF document text
- https://sananselmo.com/wysiwygfiles/file/42455486890.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_off0000b2c4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB2C4 | 14424 bytes |
SHA-256: bd6b347cc76afd9dbaeb2c68811816389c80bfe900250ce39fc12b086ff56196 |
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font_01_sfnt_off0000d6e3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6E3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000eefa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEEFA | 10808 bytes |
SHA-256: 68dd1ee733fb26f6684206ad9adae7b496fc41ba59b331b0ceebe27b85b921ca |
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