MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a large number of external links, many pointing to compromised WordPress sites or disposable hosting, indicating a phishing or link-farming scheme. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to redirect users to malicious content or phishing pages.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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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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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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://unicorn.mn/js/ckfinder/userfiles/files/75247452792.pdf In PDF document text
- https://metroguards.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160d48531ae6bd---zujuleledikiwolapokurez.pdfIn PDF document text
- http://trungtinjsc.vn/upload/FCK/file/23756169594.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/16073c9b9415ea---lubidinatu.pdfIn PDF document text
- http://dalnoboy.org/data/filestorage/upload/files/xemadipesoderoku.pdfIn PDF document text
- https://www.lesson-online.org/wp-content/plugins/super-forms/uploads/php/files/s5pakabu2ljg76jla894q2p652/kajovijewubibep.pdfIn PDF document text
- https://eyestech.in/wp-content/plugins/super-forms/uploads/php/files/m4aqstup52nh17liomitksklmn/safalojojekexosel.pdfIn PDF document text
- http://hwayinn.com/image/files/20210702_183104.pdfIn PDF document text
- http://tokstar.com/_UploadFile/Images/file/25386332114.pdfIn PDF document text
- http://pspectr.ru/userfiles/file/logotimerimodoxuxarimex.pdfIn PDF document text
- https://toolsatool.com/userfiles/files/72660163798.pdfIn PDF document text
- http://www.klpreschool.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099d66283de7---roxevasupipinajiler.pdfIn PDF document text
- http://afghansolar.com/userfiles/file/vulexalosatujuve.pdfIn PDF document text
- https://www.mercato.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16078de97640dc---wesokitifulelotodap.pdfIn PDF document text
- https://islandsvefir.is/wp-content/plugins/super-forms/uploads/php/files/e6ebirkctanocr4f1qlmp8bne9/55436793380.pdfIn PDF document text
- https://cakenflowersonline.com/userfiles/file/84235021698.pdfIn PDF document text
- http://penzion-u-zamku.cz/files/file/kitokemes.pdfIn PDF document text
- http://ingenermarket.ru/userfiles/56282828432.pdfIn PDF document text
- http://stevis.cz/files/file/bizabevazamudaposiki.pdfIn PDF document text
- http://aep-tc.com/cache/fck_files/file/85995132261.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/PmAiG5ZyT-k/uplcv?utm_term=how+many+inches+is+in+a+yard+stickPDF 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_off0000b992.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB992 | 10872 bytes |
SHA-256: 83edbc918fcc75a06cbd385092fd0f44f1c5908b280d70c048174ee1c82099db |
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font_01_sfnt_off0000d28f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD28F | 16104 bytes |
SHA-256: f7f2b296b637a8f2fb433d357bffbe4d89264444296cdcaf256dfb74a59f2773 |
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font_02_sfnt_off0000fc1d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC1D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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