MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It functions as a link farm, containing numerous URLs pointing to compromised WordPress sites and other disposable hosting, likely to redirect users to malicious content or downloads. The 'SE_INVOICE_LURE' heuristic suggests the document's content is designed to trick users into clicking these links by impersonating an invoice or payment request.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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.masozilina.sk/ckfinder/userfiles/files/22697764646.pdf
- http://caribsplash.org/wp-content/plugins/formcraft/file-upload/server/content/files/1608091e6aa727---dotidebun.pdf
- https://pergamine.com/ckfinder/userfiles/files/3389897421.pdf
- http://www.agrosystem.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160b83ec8817e8---8755089402.pdf
- https://interesttour.com/wp-content/plugins/super-forms/uploads/php/files/b9a8c8b59338d9c00380586abad95a79/73197085907.pdf
- https://envomask.com/wp-content/plugins/super-forms/uploads/php/files/39bf20c4b3b6644a89915017d0a36f21/99696553929.pdf
- http://www.deadclan.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160c0fdd41440c---sezukegedavow.pdf
- http://grupomarsamo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a267405398---gewigemamutufilobuf.pdf
- https://growmytruck.com/wp-content/plugins/super-forms/uploads/php/files/e65ee019c6490dcb6edb27d57a6633a3/felavefujezoxezuliwe.pdf
- http://loadcell.vn/Images_upload/files/70658352732.pdf
- http://0vote.com/ckfinder/files/97430465907.pdf
- https://jennysbooks.com/wp-content/plugins/super-forms/uploads/php/files/10c4c1aa851966117365c684c0fb1e61/nasovadavupawenonemevupa.pdf
- http://yilip.net/userData/board/file/birorugo.pdf
- https://diaochue.vn/userfiles/file/wasofotexojujekevidefam.pdf
- https://limpjet.com.br/wp-content/plugins/super-forms/uploads/php/files/a516166d797c1177c738350ba4745eac/vitej.pdf
- http://au-coeur-du-temps.com/userfiles/file/34034186665.pdf
- https://lawpropertyconsultants.co.uk/wp-content/plugins/super-forms/uploads/php/files/kbp769lgfvp7sol55g7nivsjrk/83532851008.pdf
- http://wagnerfamilyreunion.com/clients/866685/File/mosajuxagizunagajodozone.pdf
- https://veritiesinstitute.com/wp-content/plugins/super-forms/uploads/php/files/977b156ad2c66894d27c0b50b244a811/wadepa.pdf
- https://www.harnoordesigns.com/wp-content/plugins/super-forms/uploads/php/files/m42k9r7o36qm26h9v339neepg4/65434733080.pdf
- http://bpsstudio.hu/uploads/tujomasumisewozakoredigur.pdf
- https://homeaestheticsllc.com/wp-content/plugins/super-forms/uploads/php/files/50f0667c7a3860cf2a91abb1e54687f9/40698055779.pdf
- http://baggiez.net/userfiles/file/81471223314.pdf
- http://andreaslasnik.com/data/files/mubogeweku.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/S30rS-6n6vg/uplcv?utm_term=reflex+arcs+the+simplest+neural+circuits+answer+key
- 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_off0000efb3.binc568491a9d5cf3016c2835dbe72360dcb5f069ba20daa6ee0a4478cfb63e70f8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFB3 | 18172 bytes |
font_01_sfnt_off00012011.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12011 | 16792 bytes |
font_02_sfnt_off00013828.bin748814b35f0d636ae738ee2f459dfc2dd80c9276c576b22f0241464144755562 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13828 | 11164 bytes |
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