MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded URLs, many of which point to compromised or disposable hosting domains, suggesting a link farm designed for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing by directing users to malicious websites.
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://crysiq.ru/uplcv?utm_term=a+an+the+zero+article+exercises+pdf+with+answers
- http://t-p-fortune.com/userfiles/file/53860761538.pdf
- http://olympicthesportshop.in/uploads/wugekorowogimixe.pdf
- https://beaumont-residence.com/wp-content/plugins/super-forms/uploads/php/files/mkidcp4am6lc6g70q29i5giqiv/2123081280.pdf
- http://fd-health.com/upload/ckeditor/files/28981021606.pdf
- http://bright-mineral.com/uploadfile/file/2021090304465786.pdf
- http://laarakkers.com/ckfinder/userfiles/files/jazodofarafanenekokobope.pdf
- https://abbma.in/admin/uploads/file/57212891844.pdf
- https://kp-bs.ru/upload/files/93822966526.pdf
- https://brunoamaranti.it/wp-content/plugins/super-forms/uploads/php/files/1da1k5sfbv4gad5psh04rv4jh3/25156031207.pdf
- https://sluganarodu.org/userfiles/files/76303226103.pdf
- http://makairways.in/home/makairways2017/public_html/dowalumniusa/ckfinder/userfiles/files/latar.pdf
- https://memo-log.com/userfiles/file/16575428308.pdf
- http://sudeoksa.org/userfiles/file/20210907174945.pdf
- http://www.ktgroup.co.uk/ckfinder/userfiles/files/64555981619.pdf
- https://oncallanatomist.org/ckfinder/userfiles/files/39932572950.pdf
- http://maradonasalud.com.ar/ckeditor/ckfinder/userfiles/files/latiwa.pdf
- http://artiguardia.pl/userfiles/file/3138108153.pdf
- http://www.juniorcollege.cl/ckfinder/userfiles/files/kitozoxakesosimegipebunuw.pdf
- http://castrolmintabolt.hu/images/upload/file/kepesazifanibikene.pdf
- http://word.mn/uploads/assets/93652115750.pdf
- http://studio-castiglioni.com/userfiles/files/30998369252.pdf
- https://voolabs.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613dfb755751e---xenukokoro.pdf
- http://studioarclab.eu/userfiles/files/25286718341.pdf
- https://www.hed-endo.hr/wp-content/plugins/formcraft/file-upload/server/content/files/161386d671405d---70971262436.pdf
- http://larrysiegellaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/77056787809.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000b325.bind98b8834af8af9f4021013fc06ac26fe4d00c95ba8075d5e4b77c0d1e4ed61b9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB325 | 14332 bytes |
font_01_sfnt_off0000d6ba.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6BA | 16792 bytes |
font_02_sfnt_off0000eed1.bin433c54ba4adf14adde0ad7373edf3d00d023f3d8b0f0d9139939f0a1c798eeec |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEED1 | 10948 bytes |
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