MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains multiple heuristics indicating it is a link farm, with many URLs pointing to potentially compromised websites or disposable hosting. The ML classifier and ClamAV detection strongly suggest malicious intent, likely for phishing or to serve a second-stage payload. The document body is heavily obfuscated and unreadable, providing no direct clues to its purpose.
Machine Learning
- Nyx PDF Classifier malicious score 0.9905
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://w.scenekunstskolen-efteruddannelsen.dk/ckfinder/userfiles/files/dazute.pdf
- https://hunghiephuylog.com/upload/files/fekobamater.pdf
- https://konzolstudio.ro/uploaded_files/file/vawogotuganalesubadonise.pdf
- http://www.heksan.com.pl/file/laforob.pdf
- https://landlorddebtadvisory.com/wp-content/plugins/super-forms/uploads/php/files/a7422ecc0d078a4dce51bed406850891/64990569710.pdf
- https://aannemingsbedrijfbarthulsbosch.nl/userfiles/file/66856758352.pdf
- http://tiyuchangdi.com/upload_files/files/20210913_080449.pdf
- https://christianboudreau.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a11014fe56---44403298605.pdf
- https://iqrainternationalschool.org/_assets/files/pedorakazebuz.pdf
- https://avenirpourtous.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16144fac702f1e---sujufazuwanoma.pdf
- https://kocgrafikavukatwebsitesi.demowebsiteleri.com/upload/files/3806836128.pdf
- http://silky.ae/images/bulk_images/files/61976669255.pdf
- http://bud-med.eu/userfiles/file/nukafugenifumu.pdf
- https://langumeistras.lt/i/File/18322142076.pdf
- http://starma.pl/files/file/jalexaxarisiludozixefupor.pdf
- https://kampusogrenciyurdu.com/file/1050031267.pdf
- http://brilsports.ro/userfiles/file///56362478761.pdf
- https://domilot.com/uploader/files/68051683611.pdf
- https://dazzlin.co.uk/wp-content/plugins/super-forms/uploads/php/files/5fd1f3194c1a205c6626ace651307ef3/vomadanifoxakowijol.pdf
- http://duocthientam.com/uploads/ckfinder/files/64629212314.pdf
- https://clubsecurite.fr/webroot/upload/files/fopiwekiminod.pdf
- https://organicfertilizerproduction.com/d/files/pesinamezem.pdf
- https://srmhomes.com/images/bulk_images/files/furod.pdf
- http://escolacaritas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613d9bb824069---gitujuvi.pdf
- http://dawahcity.com/userfiles/file/petulifulebebovejunaji.pdf
- https://airbays.com/userfiles/file/nawenivoxagoredevu.pdf
- https://abandassociates.com/ckfinder/userfiles/files/luzoxowekosebogudidege.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/FevRqgeaUVY/uplcv?utm_term=android+keep+app+active+in+background
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f4e5.binf312e5cde19865e482f53b3641298655607054151ca4374d9714b255906d8e04 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF4E5 | 10856 bytes |
font_01_sfnt_off00010db0.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10DB0 | 16792 bytes |
font_02_sfnt_off000125c2.bine0105649f82265d5412fd3450b9c811ce11602d999bfbf5cba4d2c5574eb8983 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x125C2 | 17964 bytes |
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