MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links to external websites, many of which are hosted on compromised or disposable domains, indicating a link farm designed to redirect users. The presence of embedded JavaScript and a high ML classifier score further support its malicious nature. ClamAV also detected this file as a phishing trojan.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://studiolorenzoni.eu/userfiles/files/gejitufunupufug.pdf In PDF document text
- https://dalycity.com/wysiwygfiles/file/mutewasazisu.pdfIn PDF document text
- http://hausdergesundheit.net/userfiles/files/61018685582.pdfIn PDF document text
- http://aerotherminsulation.com/userfiles/file/vidunazevafow.pdfIn PDF document text
- http://biolabsrl.org/userfiles/files/lunig.pdfIn PDF document text
- http://kleinschaden-expert.com/userfiles/file/38408155175.pdfIn PDF document text
- http://arrhythmiaclinic.com/userfiles/file/20210917175340.pdfIn PDF document text
- https://horgaszvelem.hu/ckfinder/userfiles/files/nogorarexis.pdfIn PDF document text
- http://suvagcentr.ru/userfiles/files/5050144974.pdfIn PDF document text
- http://antonio-pelella.eu/userfiles/files/36763199438.pdfIn PDF document text
- http://grafosaleservice.cz/images/fck_editor/file/wuxudogebotupezapom.pdfIn PDF document text
- https://tour-paris-guide.com/cite_imgs/file/42983822228.pdfIn PDF document text
- http://smartmedicaleg.com/wp-content/plugins/formcraft/file-upload/server/content/files/16143cb14438d5---69512246296.pdfIn PDF document text
- http://www.naturapreserved.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613b4e8faec3b---77931531292.pdfIn PDF document text
- http://hong-tour.com/FileData/ckfinder/files/20210918_2E42C37A219E9A8C.pdfIn PDF document text
- https://jss-moms.si/upload/File/wuriniriboxikopew.pdfIn PDF document text
- https://bokaichenyu.com/upload/files/81820795951.pdfIn PDF document text
- https://zhavezbozi.cz/data/file/71300995775.pdfIn PDF document text
- https://hebatkeren88.com/contents/files/7640591952.pdfIn PDF document text
- https://stakeoutllc.com/wp-content/plugins/super-forms/uploads/php/files/dc00cc5ec4e0bbe758858b3dfce48c2d/divoweluwamananiw.pdfIn PDF document text
- http://mediasingrid.com/js/new/fckeditor/userfiles/file/37963856581.pdfIn PDF document text
- http://studiogeologicotrilobite.com/userfiles/files/lazetajol.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=galaxy+s8+fortnite+skinPDF 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_off0000e3ed.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE3ED | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fc04.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC04 | 10760 bytes |
SHA-256: f262da1ad84efc63b87c33a4b5d9ba2d562ca6cbf6718059f090c9760425d9a3 |
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font_02_sfnt_off00011501.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11501 | 17736 bytes |
SHA-256: 71123ba145c9f09b61263d135624523eb1ca91019ae1f47ac923e44e2e1cb1a1 |
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