MALICIOUS
172
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF document contains embedded JavaScript and a link farm pointing to multiple compromised websites, suggesting an attempt to deliver a malicious payload. The presence of a "download button" heuristic further supports a phishing or social engineering attack vector. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
Heuristics 8
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://nomylo.ru/uplcv?utm_term=convert+word+to+pdf+with+copy+protection PDF link annotation
- http://inarchengineering.it/userfiles/files/tijula.pdfIn PDF document text
- https://hylyt.co/wp-content/plugins/super-forms/uploads/php/files/e6f1694d3f48f4146f1db60252a4d671/pogigezibavalivalat.pdfIn PDF document text
- https://www.vigo.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/160a90cec3804b---48931819923.pdfIn PDF document text
- https://bbensonmft.com/wp-content/plugins/super-forms/uploads/php/files/3b25e60bd61e3f2f678b8cff70c7e790/6011779826.pdfIn PDF document text
- http://carnow.jp/js/upload/files/58366312479.pdfIn PDF document text
- https://holzhaus-suedtirol.it/wp-content/plugins/formcraft/file-upload/server/content/files/160728d19e399f---2885511513.pdfIn PDF document text
- https://f1com.ge/wp-content/plugins/super-forms/uploads/php/files/5a2c9f5a0cc2a45f6682dfd0ef44cda5/puluminizekawoli.pdfIn PDF document text
- http://tantex.org/tantex/tantexuserfiles/file/87414827291.pdfIn PDF document text
- http://landia-print.com/pdir/file/siwixobetusomu.pdfIn PDF document text
- http://tandartsindex.nl/images/uploads/wamodifugu.pdfIn PDF document text
- http://ohstigers66.com/clients/d/da/da15611725e7ba20b6827cbf2e24f87d/File/57369981399.pdfIn PDF document text
- https://kompaspt2.com/contents//files/44127859660.pdfIn PDF document text
- https://polinagerz.ru/wp-content/plugins/super-forms/uploads/php/files/bmotcmiko1fjc8lu2mvml3l7rd/36999283799.pdfIn PDF document text
- http://brilspa.ro/userfiles/file///29550101949.pdfIn PDF document text
- http://halaljones.com/uploads/files/29130336147.pdfIn PDF document text
- https://www.hotel-palladium.gr/wp-content/plugins/super-forms/uploads/php/files/d6v8glmqvc564c0vbnu148ftpu/zapovividoxojusipovikowib.pdfIn PDF document text
- http://nexxosrealty.com/userfiles/files/88025389435.pdfIn PDF document text
- https://muzeumkonstancina.pl/attachments/file/7765457642.pdfIn PDF document text
- https://sevsport.info/wp-content/plugins/super-forms/uploads/php/files/f9be149a71d12d148b49781517b9bcee/32173589525.pdfIn PDF document text
- http://www.sevenchurchestour.net/seven/wp-content/plugins/formcraft/file-upload/server/content/files/160bdd8a58d184---povifebixodutagixo.pdfIn PDF document text
- http://j-line.ca/fck_upload/file/81730696937.pdfIn PDF document text
- https://hmjrgoldhockey.org/wp-content/plugins/super-forms/uploads/php/files/5ee5324895da4fa1757aa75ddc211f3e/42444498642.pdfIn PDF document text
- http://planbmedia.hufiles/58014002410.pdfIn PDF document text
- http://modelkyujin.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606c9639dc46c---wakuxik.pdfIn PDF document text
- https://contabil-fiscal.ro/mm/file/zuxufufojep.pdfIn PDF document text
- http://100gastro.cz/soubory/files/fuxifazexexakerufaxis.pdfIn PDF document text
- http://yuseigachi.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1606c8650e6c1e---pegelasigimiwum.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_off0000ef8a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEF8A | 10636 bytes |
SHA-256: d9b9b1f8b0490205544cb05b7833eb1bcd39823fe62843352b1050c1756e23aa |
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font_01_sfnt_off000107ec.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x107EC | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011ffe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11FFE | 17832 bytes |
SHA-256: e5dec282121f621db6765371577cc0e706d3a102ec5ea7405cd1e2fe76c1264c |
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