MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1055.012 Process Injection
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The file contains numerous embedded URLs pointing to compromised WordPress sites and other disposable hosting, suggesting it functions as a link farm designed to redirect users to malicious content. The presence of these links indicates an attempt to lure victims into potentially harmful sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
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 https://infrive.ru/uplcv?utm_term=james+baldwin+no+name+in+the+street
- https://sportli.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160bbf73ce2917---59654947833.pdf
- http://etasystem.net/userfiles/files/rabametojak.pdf
- http://www.kevinbrooks.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160824a67ad10f---busijajila.pdf
- https://spencershaulageltd.co.uk/wp-content/plugins/super-forms/uploads/php/files/4f26e8501e9d267197f4e61e94df3716/dovigagosuzewutak.pdf
- http://xn--clinicaquirogavilario-vbc.com/wp-content/plugins/super-forms/uploads/php/files/oc3q54b15va236vgbn4tqf8s65/3831585726.pdf
- https://vsetinrally.cz/userfiles/file/luvup.pdf
- https://mobistore.co.nz/wp-content/plugins/super-forms/uploads/php/files/80b22d11633adbf334c45cb0dd30a836/21655422423.pdf
- http://com123.vn/uploads/file/6093128250.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cfa4c3a3272---juzavarup.pdf
- https://autosofortkauf.ch/wp-content/plugins/super-forms/uploads/php/files/7k34h71qfr1n9fp5kir2pnoj87/61523922691.pdf
- https://www.davinci.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16095c8c03996c---zumudasimefi.pdf
- https://www.kiteschule-eckernfoerde.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ad37504bda7---watopumatovegiwanapimip.pdf
- https://webvitamin.vn/app/webroot/uploads/files/21384513004.pdf
- http://bergfin.se/wp-content/plugins/formcraft/file-upload/server/content/files/16070e4de281a3---sezagegukekip.pdf
- http://besttailor.info/ckfinder/userfiles/files/foronikonikeb.pdf
- http://vegasoft.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1607e68606426d---towofolifonubumafota.pdf
- http://www.belladermeestetica.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606e407a89ca2---xilupozak.pdf
- http://stressmanagement-karriere.de/userfiles/file/72103728605.pdf
- https://bursaceviritercume.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b4797c094d7---17226437229.pdf
- 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_off0000efb5.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFB5 | 16792 bytes |
font_01_sfnt_off000107cc.bin4bbf05569835a2c8f57aacf55df0fdd0bcd134578ff73307d91718e15c6e347a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x107CC | 10728 bytes |
font_02_sfnt_off00012041.bin1b749d33b7448a12258ae7fa0e1f47f209c5bf39f2b8ea0004b9e7d7a8db4f64 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12041 | 18492 bytes |
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