MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous embedded URLs pointing to compromised WordPress sites and disposable hosting, suggesting a link farm designed to redirect users to malicious content. The presence of PDF-specific heuristics like 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' further supports this. The primary attack pattern appears to be using the PDF as a lure to drive traffic to these compromised sites, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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://laborke.ru/uplcv?utm_term=prolonged+fever+adalah+pdf PDF link annotation
- http://fortlauderdalelimorental.net/wp-content/plugins/formcraft/file-upload/server/content/files/1608b93912cd21---21973061035.pdfIn PDF document text
- https://villadelauca.com/userfiles/file/2230200931.pdfIn PDF document text
- https://apoc.com.au/wp-content/plugins/super-forms/uploads/php/files/b5cb0b644df251c6ffd3470b5933335f/51363560467.pdfIn PDF document text
- https://www.kiteschule-eckernfoerde.de/wp-content/plugins/formcraft/file-upload/server/content/files/16103ec07820b9---217055033.pdfIn PDF document text
- http://subventionsbetrug.de/wp-content/plugins/super-forms/uploads/php/files/4rd98k23vresuai9saem668nj5/13523718444.pdfIn PDF document text
- http://veronicanealhome.com/wp-content/plugins/formcraft/file-upload/server/content/files/2/160d2051f9d0ff---xixavadosozafalamonujadit.pdfIn PDF document text
- http://ahkjt.com/upfile/file/sejigigub.pdfIn PDF document text
- http://21cedu.com/pds/userfiles/files/jijelagosax.pdfIn PDF document text
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1608a32e565b77---kepuvabos.pdfIn PDF document text
- http://youandisagenix.com/ckfinder/userfiles/files/fodator.pdfIn PDF document text
- http://hargrovefamilyreunions.com/clients/16272/File/sitazama.pdfIn PDF document text
- http://neoneofitou.com/ckfinder/userfiles/files/28485713341.pdfIn PDF document text
- https://www.clubmanizales.com.co/wp-content/plugins/formcraft/file-upload/server/content/files/160742667d48b9---25506045705.pdfIn PDF document text
- http://kennyre.com/wp-content/plugins/formcraft/file-upload/server/content/files/1611445003d182---89755474642.pdfIn PDF document text
- https://www.elitelawnsolutions.co.uk/wp-content/plugins/super-forms/uploads/php/files/86odvd82fappdt31brdujsj6eo/domuvumimep.pdfIn PDF document text
- https://stradatextiles.com/upload/ckfinder/files/rosemotipikepofupukewal.pdfIn PDF document text
- http://mirandatutoringcentre.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16079819aae27e---jugajupasanegu.pdfIn PDF document text
- https://g-ortho.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606fea95e145f---pabanemonogizefujowugu.pdfIn PDF document text
- http://dsagco.com/Upload/file/59525369041.pdfIn PDF document text
- http://grgct.com/ckfinder/userfiles/files/tulofutizirikado.pdfIn PDF document text
- https://barcelonacentromedico.es/files/galeria/files/52632992203.pdfIn PDF document text
- https://cremyco.com/app/webroot/docs/file/65343226023.pdfIn PDF document text
- http://discoveryenglish.org/wp-content/plugins/formcraft/file-upload/server/content/files/160729fc81dd70---90925201948.pdfIn PDF document text
- https://rockeit.com/userfiles/file/7072250094.pdfIn PDF document text
- 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_off0000dcb6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDCB6 | 18512 bytes |
SHA-256: e50edb297cae1c5b904804b5b2bea73d21c579dd6ff5e6a4e1e7968c0ee70b81 |
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font_01_sfnt_off00010d10.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D10 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00012527.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12527 | 10484 bytes |
SHA-256: 135b21f7f4cffa003bbea4d7d080b165acc1f94ba9dad79c6d58bb77a1511ac6 |
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