MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF file identified as malicious by ClamAV and an ML classifier. It contains a large number of embedded URLs, many of which point to compromised CMS upload directories or are hosted on disposable domains, indicating a link farm designed to lead users to malicious content. The PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics strongly suggest this is a phishing or malware distribution lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://www.humillacionyestrella.org/ckfinder/userfiles/files/zagunalemobelajofebejina.pdf In PDF document text
- http://birons.net/wp-content/plugins/super-forms/uploads/php/files/aa9367fdf1333d846f708e3aff4b477f/lavomedokeminisid.pdfIn PDF document text
- http://recit-de-vie.fr/userfiles/file/67140881652.pdfIn PDF document text
- https://stcc-sa.com/motakamel/Ups/files/57871111574.pdfIn PDF document text
- http://eventclub.pl/userfiles/file/87241321564.pdfIn PDF document text
- http://dnestrovsk.es-pmr.com/constructor/dnestrovsk/ckfinder/userfiles/files/rumusaxinebeviditedomi.pdfIn PDF document text
- http://aotwcasino.com/ckfinder/userfiles/files/vejige.pdfIn PDF document text
- https://digireg.nz/upload/23058713797.pdfIn PDF document text
- https://sonerofset.com/userfiles/file/77298662686.pdfIn PDF document text
- https://jogamiskolc.hu/ckfinder/userfiles/files/kerujudodo.pdfIn PDF document text
- http://alrabbancapital.com/file/files/86961875909.pdfIn PDF document text
- http://mgtuae.com/uploads/file/45095912178.pdfIn PDF document text
- http://ne-moloko.ee/wp-content/plugins/super-forms/uploads/php/files/22322e1530f8ff0d2314d4895d6a22c7/purigivigutiravobokevo.pdfIn PDF document text
- http://pxmonastery.org/CKEdit/upload/files/zutid.pdfIn PDF document text
- https://rcot.org/userfiles/file/88590953239.pdfIn PDF document text
- https://phoenixknights.co.uk/wp-content/plugins/super-forms/uploads/php/files/2ca05a2320e889219e22b9c92a2b39dc/63788003980.pdfIn PDF document text
- http://sportingclubalbinia.eu/userfiles/files/pikutedevazuton.pdfIn PDF document text
- http://nhanvietgroup.com/demo/xay-dung-tnx/upload/files/65712683168.pdfIn PDF document text
- http://krukaiart.com/userfiles/files/97334227725.pdfIn PDF document text
- https://moma-restaurant.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613ce3d19388a---66374313886.pdfIn PDF document text
- https://semangkabiji.com/contents/files/molili.pdfIn PDF document text
- http://fortlauderdalelimorental.net/wp-content/plugins/formcraft/file-upload/server/content/files/1614e79ae5f27e---xodakanutijolazubo.pdfIn PDF document text
- http://happy-land.hu/editor_up/31805159297.pdfIn PDF document text
- https://sealskinz.ru/files/file/pimosejetodoza.pdfIn PDF document text
- http://thietbiytedaibao.com/media/files/98208193473.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=emergency+watershed+protection+programPDF 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_off0000e0d5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE0D5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f8e7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF8E7 | 19284 bytes |
SHA-256: cde0a26d58d19872ace283e99db015b19d9c10026849103ad9214eff3a987507 |
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font_02_sfnt_off00012b8e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12B8E | 11096 bytes |
SHA-256: ce20aadafa52b80731d5ce99e62150c8326b17a8c93bdefb2bcfc233d1594b15 |
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