MALICIOUS
204
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links, many pointing to compromised CMS upload directories and disposable hosting, suggesting a link farm designed to distribute malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to deliver a phishing payload or malware. Although no scripts were explicitly extracted, the PDF structure and URL patterns are indicative of a malicious distribution mechanism.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 8
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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 to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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://ambulatorioveterinariosantanna.eu/userfiles/files/19230543583.pdf
- http://etkindenetim.com/resimler/files/62864249932.pdf
- https://www.msolartop.cz/wp-content/plugins/formcraft/file-upload/server/content/files/160b31a0f83c38---sutidanexabeko.pdf
- https://weilaimachinery.com/userfiles/files/91054166090.pdf
- https://www.avenueroadadvertising.com/wp-content/plugins/formcraft/file-upload/server/content/files/160792563a138f---rezesi.pdf
- https://www.swx.global/wp-content/plugins/super-forms/uploads/php/files/f39d18743328100bcaa379c9e520d2f9/tetenapurudiwaxobefu.pdf
- https://projectmine.hu/ckfinder/userfiles/files/nobodibu.pdf
- https://www.sblending.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160a9e36a5ce8b---tuwefe.pdf
- http://ecohouse-lab.com/userfiles/file/36252178119.pdf
- http://elektro-galerie-hamburg.de/userfiles/file/muwufikefomadarezaduroreg.pdf
- https://kudamatsu.org/userfiles/file/73356226263.pdf
- https://www.okcfarmersmarket.com/wp-content/plugins/super-forms/uploads/php/files/37658b5203013aa07a4bb425be399696/89257810294.pdf
- https://oncetrabzon.com/resimler/files/nejenoxemururujema.pdf
- https://qualitycountscleaning.com/wp-content/plugins/super-forms/uploads/php/files/9349b5c99e27ca30192199be85e2b27d/buxepuvibumedow.pdf
- https://hopefor.today/wp-content/plugins/super-forms/uploads/php/files/ceeeb1c3f2665f13a4e3acaba4eacab0/merezuzolafarepelub.pdf
- http://ketoanaca.com/uploads/image/files/borudojegalajiruzimizor.pdf
- https://esteticarcare.com/wp-content/plugins/super-forms/uploads/php/files/f4ef51a39135fd5dba838cb548b11da7/55902198288.pdf
- https://horizontire.com/userfiles/file/8286916550.pdf
- https://www.ideaklinik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/1609881bbe91b2---22930583490.pdf
- http://szyldkj.com/luodan/images/userfiles/file/deparuvevezowolu.pdf
- https://www.novet.de/wp-content/plugins/formcraft/file-upload/server/content/files/1609e98d1d55d9---3840766484.pdf
- https://gpagroup.in/wp-content/plugins/formcraft/file-upload/server/content/files/160a3169d5b75f---78899695789.pdf
- http://neuragen.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160834961a1443---24291018250.pdf
- http://nuraski.pl/wsg/userfiles/nemimalipil.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=organic+chemistry+2nd+edition+klein+solutions+manual+pdf+free
- 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_off0000dc3a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDC3A | 16792 bytes |
font_01_sfnt_off0000f44c.bin2c6b64c40d925ea0edb70ea43713c551423df39f9315fe3d2d3a646cf6b09e31 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF44C | 19376 bytes |
font_02_sfnt_off00012705.binff0bb0f625eb8425cd5e7c05cc596d409cba843e3b38886061a9753cb17d712c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12705 | 11516 bytes |
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