MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF document identified as malicious by ClamAV and ML classifiers. It contains a link farm pointing to multiple compromised websites, likely intended to trick users into downloading further malicious content. The presence of embedded URLs and the nature of the heuristics suggest a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
Heuristics 7
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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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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 http://www.kidnuri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e30f665809---52936704870.pdf In PDF document text
- https://biodent.ro/m4fm_files/m4news/ck-uploads-files/87264003866.pdfIn PDF document text
- https://www.beachesbrewing.com/wp-content/plugins/super-forms/uploads/php/files/871baaa1731e248f20d912c57373589b/50055326783.pdfIn PDF document text
- http://pngroup.pl/ckfinder/userfiles/files/mewoz.pdfIn PDF document text
- https://him-home.ru/wp-content/plugins/super-forms/uploads/php/files/168d4107ad0cfab4366cbb61ca34ee71/64595060145.pdfIn PDF document text
- http://vakantie-noordlimburg.nl/ckfinder/userfiles/files/40136718892.pdfIn PDF document text
- https://zebcom.in/userfiles/file/40658489155.pdfIn PDF document text
- http://mywayrtk.info/userfiles/file/vavosuki.pdfIn PDF document text
- http://quangcaosms.org/media/ftp/file/4954857455.pdfIn PDF document text
- http://tienhasteel.com/app/webroot/upload/files/lopewukewaxazefenemazuzi.pdfIn PDF document text
- https://www.pfgpartners.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160b00094765ef---demos.pdfIn PDF document text
- https://kes-stv.ru/wp-content/plugins/super-forms/uploads/php/files/86a0e20cc5445d9b970b3d502a9044e6/badixel.pdfIn PDF document text
- http://studiopassarotti.it/userfiles/files/vofoxozenosotebad.pdfIn PDF document text
- https://www.pharmaright.ca/wp-content/plugins/super-forms/uploads/php/files/u7ga5r7o93lkdoeke71ipu3hdi/nepagaxosadutanevazu.pdfIn PDF document text
- http://sonnenheizungen.ch/fckeditor/editor/images/file/mojakemi.pdfIn PDF document text
- http://www.gradur.ba/wp-content/plugins/formcraft/file-upload/server/content/files/160c2b9be03c39---ledizemo.pdfIn PDF document text
- http://malverne69.com/clients/a/a7/a743c233813d1a1dbf5c38c484d85cdc/File/15117680720.pdfIn PDF document text
- http://anthonyjcincottalaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/gutipisulitogepumuxu.pdfIn PDF document text
- https://advance-pack.com/editor_upload/file/nakuzesinafamodadekax.pdfIn PDF document text
- https://akdenizokullari.k12.tr/wp-content/plugins/super-forms/uploads/php/files/rlvlaubpdosdkcldlhfgipeucj/1221404067.pdfIn PDF document text
- http://xn--e1aazeoc7d.xn--p1ai/images/shared/file/59971472809.pdfIn PDF document text
- https://www.infrascale.com/wp-content/plugins/super-forms/uploads/php/files/3ca870960699707f02f415bd1d7c4616/korewokamamumere.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1KS0DP0cxss/uplcv?utm_term=biolog%C3%ADa+molecular+de+la+c%C3%A9lula+alberts+6+edici%C3%B3n+pdf+descargarPDF 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_off0000ed1c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xED1C | 11780 bytes |
SHA-256: 4324ccc21b9149e8503bf451a9f142b2ad20bfcf00e767e2f777cb42f60ae166 |
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font_01_sfnt_off00010836.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10836 | 18408 bytes |
SHA-256: f9b9ae9c17f66e150f656f18ea15c5ea77620aa1b81637aff374f0f4f832a5a9 |
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font_02_sfnt_off000137b8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x137B8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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