MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains a link farm pointing to multiple compromised WordPress sites, likely intended to host and distribute a secondary payload. The presence of a 'download' button heuristic further supports the lure-based attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://csom.cz/wp-content/plugins/super-forms/uploads/php/files/63b0ed5e391496f70020296f4792ddd7/55150701555.pdf In PDF document text
- https://tfnd.org/wp-content/plugins/super-forms/uploads/php/files/7bf100998a3d7bda6dfd6d502074fe0e/pumukezutuzew.pdfIn PDF document text
- https://performanceltg.com/wp-content/plugins/super-forms/uploads/php/files/bfb5cf5700bc3095fc99eb7688d6d1d8/92453333028.pdfIn PDF document text
- http://quickfix-poland.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e2c6a0abf30---pidifukaxisebevogofigadaf.pdfIn PDF document text
- https://travolution.travel/wp-content/plugins/super-forms/uploads/php/files/bd9fc5a4e5af6059e84aa8ff3cf6b23b/80439387668.pdfIn PDF document text
- http://innotec-industrie.be/userfiles/file/38511834518.pdfIn PDF document text
- http://srihemkuntschoolint.com/slbdavbatala/userfiles/file/zozaxijabajeboxokenet.pdfIn PDF document text
- http://gostium.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b7841a14d15---61066007570.pdfIn PDF document text
- https://mudateconmigo.cl/wp-content/plugins/super-forms/uploads/php/files/315e47e047f18cb0d02e1d61e3dd12c9/72702872952.pdfIn PDF document text
- http://www.hotel-margherita.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c78c5f172f---gususibi.pdfIn PDF document text
- https://ajitcoatings.com/uploads/wajukupakigazazilabara.pdfIn PDF document text
- http://evola.it/userfiles/files/1454070594.pdfIn PDF document text
- http://svs-pm.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607353c7e114a---tixuwetanewuzap.pdfIn PDF document text
- http://ar-intl.net/wp-content/plugins/super-forms/uploads/php/files/ogd8k7b3hv2u8q4kb9tt3hoie3/61262914043.pdfIn PDF document text
- https://arihantgranites.in/wp-content/plugins/super-forms/uploads/php/files/3in4buieo684ho045sekk6uqh5/meromutawose.pdfIn PDF document text
- https://eatorhours.org/e-bussiness/fckimages/file/retasenakexevupikudokexu.pdfIn PDF document text
- http://debten.net/UserFiles/File/54356907303.pdfIn PDF document text
- https://kede.org/userfiles/file/tilimedadekifefizot.pdfIn PDF document text
- http://zahradysnapady.cz/soubory/files/naxulabadotaxoguwoxewog.pdfIn PDF document text
- http://tvtamminhphat.com/uploads/userfiles/file/tuxababe.pdfIn PDF document text
- http://stopasbestos.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160863c7fa0fad---sotezojafonepewife.pdfIn PDF document text
- http://www.advancedevents.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16085d661482e4---melozumeluzamaxunovef.pdfIn PDF document text
- https://nilsagame.com/calisma2/files/uploads/peziwuxi.pdfIn PDF document text
- http://cavusofis.com/images_upload/files/totenunafezuges.pdfIn PDF document text
- https://earthideasawnings.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b4b6273d390---dabixe.pdfIn PDF document text
- http://www.sunargrup.com.tr/wp-content/plugins/super-forms/uploads/php/files/bm3fpk1fpka07f50eiml07l6h1/59047642239.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/GLLx1DTH0VQ/uplcv?utm_term=george+benson+you+are+the+love+of+my+life+mp3+downloadPDF 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_off0000e6f3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE6F3 | 11664 bytes |
SHA-256: f3185ec324f9e39a41201add0a54f1e77f0b647254078c3ffa2187da5f10a0fd |
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font_01_sfnt_off00010238.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10238 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011a4a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11A4A | 20348 bytes |
SHA-256: f68490f4837359ae02f7467e4ebe85afc486c619d5072a6b1e99109c29365b31 |
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