MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains numerous links, many pointing to compromised WordPress sites, suggesting a link farm or phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing or redirection attack, likely delivered via spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9946
Heuristics 6
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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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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://compie.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160b0be50b4ab5---rizaboduf.pdf
- http://career-id.org/ckfinder/userfiles/files/93084017533.pdf
- https://www.pfgpartners.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160bddc078aaae---xevatesarorofexir.pdf
- https://asiaviews.org/wp-content/plugins/super-forms/uploads/php/files/h26i2lnd9tcn18lud26tepftb2/20775423815.pdf
- http://www.sunarozlem.com.tr/wp-content/plugins/super-forms/uploads/php/files/3u1pilsejua9g4d854nde7ac01/46325442098.pdf
- http://www.yourhealthyourchoice.org/wp-content/plugins/formcraft/file-upload/server/content/files/160ada82858b2e---97642825645.pdf
- http://argentum.com/wp-content/plugins/super-forms/uploads/php/files/sgabp7qlo627ks0oh1g13o1hbn/jaboku.pdf
- http://jessicarossitto.com/clients/7/7c/7c16b8c799dae9ffcd1258f31d6ff645/File/wuziroxufasavazube.pdf
- http://www.putnamtaxi.net/wp-content/plugins/formcraft/file-upload/server/content/files/16095e3754660d---10716476943.pdf
- http://ros-grad.ru/fck_editor_files/files/66644556773.pdf
- http://degeninhotel.ru/admin/ckfinder/userfiles/files/54044201779.pdf
- http://gulfcoolcontracting.com/uploads/userfiles/file/file/86043862324.pdf
- http://enotecagaribaldi.it/userfiles/files/2197375117.pdf
- http://aldara-latinoamerica.com/userfiles/file/37645586100.pdf
- https://controlcert.se/wp-content/plugins/formcraft/file-upload/server/content/files/16072b6d5986cd---vujoxokupeva.pdf
- https://www.phoenixdentalacademy.co.uk/wp-content/plugins/super-forms/uploads/php/files/641df06b5c1bb6f2b8dbbfa097cca694/48818378359.pdf
- https://www.ideaklinikbursa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607955b79b234---12458845601.pdf
- http://niengrangchuyensau.com/upload/contentFile/file/75515994570.pdf
- http://veronicanealhome.com/wp-content/plugins/formcraft/file-upload/server/content/files/2/160a5d9123134f---durekukawe.pdf
- http://ngocvietbungalow.com/upload/files/46964073903.pdf
- https://www.aserspa.net/wp-content/plugins/super-forms/uploads/php/files/snb3fk2kn02g258iu8cjb1o868/61125986667.pdf
- http://emaaravm.net/upload/files/23012869040.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=cape+cod+drink
- 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 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000dd69.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD69 | 16792 bytes |
font_01_sfnt_off0000f57a.bin7d15b2d6d265aaca51dda18faee70a1b8fa9d95ed54cb111fb0895789092f9ae |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF57A | 16312 bytes |
font_02_sfnt_off00010b86.bin0cbcb917cbd5256c81d99b72eb0ac1383afb5dca26613564e84e8b8605ae4566 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B86 | 10316 bytes |
font_03_sfnt_off000122ce.binb919e79a9287bbe632a043c6f4d7a9c3e42c1f95d5e10c6c59a4851ba2c54ae7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x122CE | 17000 bytes |
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