MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier. It contains embedded JavaScript and a link farm pointing to compromised WordPress sites, suggesting it's designed to redirect users to malicious content or download further payloads. The presence of embedded JavaScript indicates potential for client-side exploitation.
Machine Learning
- Nyx PDF Classifier malicious score 0.9929
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 https://frontiersneurophotonics.org/wp-content/plugins/formcraft/file-upload/server/content/files/1/1608c8ed7bf2bf---59865534566.pdf
- http://sghscsjamarai.org/guruhargobind/userfiles/file/67290196670.pdf
- https://bahamianbrewery.com/ckfinder/userfiles/files/zenulipubutivavunixat.pdf
- https://jclifeschools.org/wp-content/plugins/super-forms/uploads/php/files/1c207e6e2c98369a64b95445398522b1/lokadolegirejafi.pdf
- http://visusmarble.com/images_upload/files/mijizurukeku.pdf
- http://ridgefieldpark1967.com/clients/3/39/39eebdc8797e30ee23d4fd57d071fd44/File/turoporalifonilemuse.pdf
- http://krindustria.com.br/site/wp-content/plugins/formcraft/file-upload/server/content/files/1607e5d0baa058---jekaler.pdf
- http://www.lnk-creation.fr/upload/file/kizupateserakibonopixurud.pdf
- http://digimaap.com/wp-content/plugins/super-forms/uploads/php/files/3qdj7lvjao2al24blgt5unspap/demarizumodukanegototofi.pdf
- https://www.ferienhof-schneider.de/wp-content/plugins/formcraft/file-upload/server/content/files/16081429d47dd2---38790228372.pdf
- https://www.icslights.com/wp-content/plugins/super-forms/uploads/php/files/c99e5b557b2e136222acbb3b5865a51f/sugozuvu.pdf
- http://china-engine.net/ckfinder/userfiles/files/1512411830.pdf
- https://empezo.xyz/js/ckfinder/userfiles/files/38329048492.pdf
- https://zivotzaokny.eu/res/file/vudagigepogadonozogo.pdf
- https://kantankacreative.com/wp-content/plugins/super-forms/uploads/php/files/b05e09341e3ee0e068a6cda76da6402e/verijavatuzogibuver.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c498551389a---zozuxulavuzokur.pdf
- http://cgt-fo-csc.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160d9722c289ef---takaluvapemikabuteza.pdf
- http://danchrisjewelry.com/userfiles/file/kemilemimajer.pdf
- https://nguyenvanhuongloc.vn/app/webroot/files/images/pages/files/rixuwobefivabajed.pdf
- https://lashmakerpro.it/wp-content/plugins/super-forms/uploads/php/files/buofigc601upvgvd70dl30aon2/74953037634.pdf
- http://aarogyamedico.com/userfiles/file/kaborujujudusuji.pdf
- http://www.gleason.com.au/application/third_party/ckfinder/userfiles/files/fufobilevevepufelid.pdf
- https://maidintown.co.uk/wp-content/plugins/super-forms/uploads/php/files/0261e729b1b592a1f3baf32aacc8ff8a/51937121782.pdf
- http://md-servicios.com/userfiles/file/gizivifozunupubuteza.pdf
- http://hurtglass.pl/upload/file/55956655026.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=how+to+block+a+group+chat
- 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_off00010651.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10651 | 16792 bytes |
font_01_sfnt_off00011e63.bindac5f754665245a8c854ab384699aa4aa8172dd1fdd5c0152329c06215952594 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E63 | 16960 bytes |
font_02_sfnt_off00014a8d.bin23e46dd47e8d6758138d6cc61734d4f56bd597291da0df145797ff45635758b0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14A8D | 10568 bytes |
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