MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous links, many pointing to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The document body is heavily obfuscated and unreadable, providing no direct user-facing lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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 http://chatyzvule.cz/uploads/pebanajizasol.pdf In PDF document text
- http://sostrevalli.it/userfiles/files/83494236595.pdfIn PDF document text
- http://graphicon.hu/wp-content/plugins/formcraft/file-upload/server/content/files/160a9ac8265e35---nidepesazafobakazajewo.pdfIn PDF document text
- http://vipavtoufa.ru/wp-content/plugins/super-forms/uploads/php/files/72895d132d0309d8928bc75714760a94/86600798475.pdfIn PDF document text
- https://www.conkite.com/wp-content/plugins/super-forms/uploads/php/files/fefbc2b4c0abddb1f543c4d9873bbb29/73241104082.pdfIn PDF document text
- https://bayardplaza.co.uk/wp-content/plugins/super-forms/uploads/php/files/ueik73slmt2fkdqn0raovqso8j/49165919389.pdfIn PDF document text
- https://perfumes.dropship-tracking.com/userfiles/files/sapedisugovalewubixosaxi.pdfIn PDF document text
- http://www.recko.ru/ckfinder/userfiles/files/devid.pdfIn PDF document text
- https://aadhaarretail.com/administrator/imagetemp/file/7996357463.pdfIn PDF document text
- https://ladychief.com/wp-content/plugins/super-forms/uploads/php/files/81d89508cf06cc9ca099fef9049738e6/dafusef.pdfIn PDF document text
- http://marymo.ru/uploads/files/nikumawezamijewas.pdfIn PDF document text
- http://voszveszprem.hu/_user/file/musiduwumadila.pdfIn PDF document text
- https://grupo-bahia-real-estate.com/ckfinder/userfiles/files/lexugedelebazewezugomamen.pdfIn PDF document text
- http://www.infranetltd.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a3e3b7d8783---5392640659.pdfIn PDF document text
- https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/346u8sublbq145os7jf5t7940k/repofid.pdfIn PDF document text
- http://africansafaris-spain.com/FCKeditor/editor/filemanager/connectors/php/connector.php?Command=FileUpload&Type=File&CurrentFolder=%2Ffile/lasabuvipu.pdfIn PDF document text
- https://nicklason.se/ckfinder/userfiles/files/busogozunebevuvuweseluvig.pdfIn PDF document text
- http://fly.no1-yes.com/userfiles/file/57189028577.pdfIn PDF document text
- https://schlosshotel-murten.ch/userfiles/files/93410374240.pdfIn PDF document text
- http://polishingmarblefloor.it/userfiles/files/pifozikukapivenogiz.pdfIn PDF document text
- http://flexa.cz/docs/file/ditorareluponaxojowofebid.pdfIn PDF document text
- http://fruitvita.com/files/files/12899738750.pdfIn PDF document text
- https://iasvn.org/Images_upload/files/bopuga.pdfIn PDF document text
- http://bsp-oblspl.org/ckfinder/userfiles/files/wisiwomupopadaga.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=pronoun+antecedent+agreement+worksheet+high+schoolPDF 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_off0000fb9d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB9D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off000113af.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x113AF | 17948 bytes |
SHA-256: 9f2e0f617d2e04726a50eb4c9bfb39b5605216c52103079453cfec2e27c0b843 |
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font_02_sfnt_off00014216.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14216 | 11096 bytes |
SHA-256: 3a2abd6f1735960e57079dfb2d0698c6f72d759da4ea5b70f20c3f52d6f44b85 |
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