MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous embedded URLs, many of which point to compromised CMS uploads or disposable hosting, indicating a link farm designed to lure users to external sites. The ML classifier strongly flagged this PDF as malicious. While no scripts were extracted, the presence of a link farm suggests an attempt to redirect users to malicious content or phishing pages.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
Heuristics 5
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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://terlickodds.cz/www/www/fckphotos/file/filebeb.pdf In PDF document text
- http://xn----1-6cdapb2bdyqawnpcindqfc.xn--p1ai/media/file/lepepox.pdfIn PDF document text
- http://galantemontagnana.it/ckfinder/userfiles/files/20682688969.pdfIn PDF document text
- http://sccsfz.org/upload/2021-09/velapudijunip.pdfIn PDF document text
- http://jiji.pgo.tw/pic/uploads/files/47068573955.pdfIn PDF document text
- http://tms-technology.com/ckfinder/userfiles/files/viditarebelesaxunarixeru.pdfIn PDF document text
- http://konikanarrowfab.com/ckfinder/userfiles/files/84540680660.pdfIn PDF document text
- http://adirondackseafood.com/ckfinder/userfiles/files/93201374640.pdfIn PDF document text
- https://beauti-full.ru/uploads/files/lujutirugitumexobegovuraf.pdfIn PDF document text
- https://festivalecolo.ca/wp-content/plugins/formcraft/file-upload/server/content/files/161489a7242a61---tukulakekukujig.pdfIn PDF document text
- http://xn--b1amishc2fb.xn--p1ai/ckfinder/userfiles/files/jodemalikot.pdfIn PDF document text
- http://eatatrudy.com/uploads/files/90577370160.pdfIn PDF document text
- http://sgyscom.com/upload_fck/file/2021-9-16/20210916194808565442.pdfIn PDF document text
- http://for-rent-leuven.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613176ac2ec68---fifajaginoroboneporaf.pdfIn PDF document text
- http://studiodabo.eu/userfiles/files/9921507412.pdfIn PDF document text
- http://7sate.com/filespath/files/20210919230443.pdfIn PDF document text
- https://citytrafik.nu/images/file/4909319441.pdfIn PDF document text
- http://dijladentalcenter-qa.com/userfiles/file/bumepaf.pdfIn PDF document text
- http://condominiobrisasdelnorte.com/userfiles/file/kavutobimutegefokopod.pdfIn PDF document text
- http://micro-logic.ro/images/uploaded/file/72676373337.pdfIn PDF document text
- http://english-island.pl/wp-content/plugins/super-forms/uploads/php/files/nctan850n06rphd95qvs68hu04/mixoforujazefarolanafi.pdfIn PDF document text
- http://doradcyprawni.com/images/pliki/18099084530.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=how+to+use+mi+fire+stickPDF 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_off0000df31.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF31 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f748.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF748 | 10452 bytes |
SHA-256: 271a94d4c7230f6457fc904a01bab5f2b7a994cdf29e28f7c22def87166298cf |
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font_02_sfnt_off00010f1c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10F1C | 18076 bytes |
SHA-256: a7b814ccc18f719f4410fbc2f329e5f802f117caffbc0bd42ba3e95a8292b1e6 |
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