MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous links pointing to compromised WordPress sites and disposable hosting, suggesting a phishing or malware distribution campaign. The presence of external URIs and link farms strongly suggests the document's purpose is to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
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://krisoc.ru/uplcv?utm_term=alien+apk+download PDF link annotation
- http://www.stratcareerservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613411017d8f9---rakozurefozigusidir.pdfIn PDF document text
- http://mail.teleserviciomalaga.com/ckfinder/userfiles/files/68380630179.pdfIn PDF document text
- https://ivfnna.gr/wp-content/plugins/super-forms/uploads/php/files/ac76f661c911cba0e82fdb10187e30a8/kapemenizilufuwedaxosif.pdfIn PDF document text
- http://www.salac.cz/ckfinder/userfiles/files/tuxodegepe.pdfIn PDF document text
- http://stlukesfp.org/ckfinder/userfiles/files/likup.pdfIn PDF document text
- http://holzbau-napetschnig.at/ketakulivafefexosukimutip.pdfIn PDF document text
- http://elturo.ru/img/upload/files/xereremukoduti.pdfIn PDF document text
- http://mayjack.com/upload/files/38383082702.pdfIn PDF document text
- http://canadianartistic.com/userfiles/file/vexokulogetupolix.pdfIn PDF document text
- http://sinproval.it/userfiles/files/10625927988.pdfIn PDF document text
- http://sunpix.ru/img/lib/file/fipakomesurugajilo.pdfIn PDF document text
- https://hygradeinsulators.com/images/uploads/file/18848930685.pdfIn PDF document text
- https://joefairless.com/wp-content/plugins/super-forms/uploads/php/files/d52e034ae95509808090ab91d6d6c25d/82241391012.pdfIn PDF document text
- https://mldom.xyz/web/img/podborky/files/48098433252.pdfIn PDF document text
- http://xn--h1aeekk.xn--p1ai/files/file/55951161973.pdfIn PDF document text
- https://akproauto.com/nbloom/fckuploads/file/vudozixose.pdfIn PDF document text
- http://labsshop.com/d/files/71243529206.pdfIn PDF document text
- http://bloodfaces.de/attachment/file/19287728748.pdfIn PDF document text
- http://aeskulap24h.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612f887ad1cd2---64410513375.pdfIn PDF document text
- https://stcatherine.ac.ug/wp-content/plugins/formcraft/file-upload/server/content/files/1613f9f980c35b---pibanepinobositikowekone.pdfIn PDF document text
- http://nirmalapublicschoolerumely.com/userfiles/file/64001485773.pdfIn PDF document text
- https://hostsolutions.ro/app/webroot/files/userfiles/files/vizotonuzudibobe.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_off0000b9f5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB9F5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d20c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD20C | 10176 bytes |
SHA-256: c976351861f29ca0ebe27f3c23b29f9fd8ab08af77136c699e1f4cc8a8909051 |
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font_02_sfnt_off0000e8f0.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE8F0 | 17264 bytes |
SHA-256: feb030e24a7d9402885ed857287fe90976d45762a44649a774cd3de2296c4821 |
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