MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. Heuristics indicate the document functions as a link farm, directing users to multiple potentially compromised websites hosted on disposable domains. The presence of numerous PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM firings supports this, suggesting an attempt to distribute malicious content or phish users.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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://patriot.ch/wp-content/plugins/super-forms/uploads/php/files/ied5v9mjnhs5n2kqcpt44siaft/vovemosudukoluvox.pdf In PDF document text
- http://optimus.org.au/wp-content/plugins/formcraft/file-upload/server/content/files/160c7756e39569---kolanineriledazerazikule.pdfIn PDF document text
- https://pikewallis.no/wp-content/plugins/formcraft/file-upload/server/content/files/1607aef2d89089---82422513742.pdfIn PDF document text
- http://pnmanagementsolutions.in/uploads/33168291601.pdfIn PDF document text
- https://joefairless.com/wp-content/plugins/super-forms/uploads/php/files/3a6d3ef030da179b394bdb023aeb0e82/xurobosa.pdfIn PDF document text
- http://www.alex-vasilkov.ru/images/wisdom/file/72268529769.pdfIn PDF document text
- https://www.mixedclass.com.au/wp-content/plugins/super-forms/uploads/php/files/a6pmriqc6tm96s9evc6n8a2981/22210002314.pdfIn PDF document text
- https://www.verpoort-bouw.be/wp-content/plugins/formcraft/file-upload/server/content/files/160d696adb9ef5---sagamerumuvavenezimomo.pdfIn PDF document text
- http://photographybynami.com/wp-content/plugins/formcraft/file-upload/server/content/files/16080687c515b0---61465479984.pdfIn PDF document text
- http://structurecreative.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d953571cd9---39185245504.pdfIn PDF document text
- https://islandsvefir.is/wp-content/plugins/super-forms/uploads/php/files/2r5bi7n2hnisqpkq0puol69qk1/97331168596.pdfIn PDF document text
- http://otelm4b.ru/admin/ckfinder/userfiles/files/goxituxizogep.pdfIn PDF document text
- https://ural-aiti.ru/admin/ckfinder/userfiles/files/48871953752.pdfIn PDF document text
- https://gites-les-bardots.com/userfiles/file/nixabajuxujok.pdfIn PDF document text
- http://ziepniekkalns.lv/wp-content/plugins/formcraft/file-upload/server/content/files/1608adaf51a585---meduzelifi.pdfIn PDF document text
- https://agatanorek.com/files/file/mujipivek.pdfIn PDF document text
- http://cloverdiamond.com/file/ruretesuvafon.pdfIn PDF document text
- https://silga.ca/userfiles/file/92908871936.pdfIn PDF document text
- http://webinaris.net/ckfinder/userfiles/publics/files/ruxeminomuliwolefukuter.pdfIn PDF document text
- http://animalscipublisher.com/files/upfiles/file/24043119056.pdfIn PDF document text
- http://perfectthesale.com/wp-content/plugins/formcraft/file-upload/server/content/files/160717baac5826---tinalasusifunuluta.pdfIn PDF document text
- https://www.espymetcalf.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bc4d7f0fd84---74010389.pdfIn PDF document text
- https://sasalidayanisma.org/uploads/file/46006023339.pdfIn PDF document text
- http://caryhigh1987.com/clients/41333/File/71106467897.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=mexican+chicken+and+corn+saladPDF link annotation
- 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_off0000fe5c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFE5C | 10556 bytes |
SHA-256: 59c3d2bb06cc3b174ee80c3dadf9cc815d35919de71a48819c105617da374de9 |
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font_01_sfnt_off00011659.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11659 | 17080 bytes |
SHA-256: 05219cb650a9f2bd4779a5827888fc5a4a7f953619580cc1a0dd94d651ec6a8a |
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font_02_sfnt_off000142fb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x142FB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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