MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The sample is a PDF containing embedded JavaScript and a link farm pointing to multiple compromised WordPress sites. These sites host further PDF files, indicating a multi-stage attack likely designed for phishing or malware distribution. The ML classifier and ClamAV detection strongly support its malicious nature.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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://neavocats.com/wp-content/plugins/super-forms/uploads/php/files/cefa8f424a7f2c1bc7e6f59f4969b579/nigito.pdf
- https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/16086d37460e8f---buselomaretuposako.pdf
- https://simovi.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160b8788420ae2---5150631665.pdf
- https://cambodiadriverservice.com/userfiles/file/31345364886.pdf
- https://adbadog.com/wp-content/plugins/super-forms/uploads/php/files/5e90ed4c5eb1afd76f19e5ea8ec7125e/fugisabimatevuf.pdf
- http://tw-go.org/files/32699166704.pdf
- http://ndt-tl.ru/upload/file/12499203037.pdf
- http://primaria-ciocirlia.ro/media/file/famuzogajexuz.pdf
- https://www.davidwoodpersonnel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bc20ca1c837---35054082196.pdf
- http://www.farparts.cl/wp-content/plugins/formcraft/file-upload/server/content/files/1609070c1c842d---17884209101.pdf
- https://www.ideaklinik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160abf4549ab67---jebalomepijudigivan.pdf
- https://prtl.pl/userfiles/file/61706693284.pdf
- https://motionslam.com/wp-content/plugins/super-forms/uploads/php/files/ed2927e52fa834415b2e5f8bd9803b6f/zibozugigelepunaxojamo.pdf
- https://eduinfinite.com/wp-content/plugins/super-forms/uploads/php/files/a824253778289dcd119bff6dcfeb4951/22686244524.pdf
- http://stylist.in.ua/wp-content/plugins/formcraft/file-upload/server/content/files/16085cc61d478d---sizukiwomabatuvigelavak.pdf
- https://lsp.od.ua/wp-content/plugins/super-forms/uploads/php/files/khua2ugb9bi4urs6egnkrmh2g2/63000883375.pdf
- http://nesthomes.in/userfiles/file/44110221840.pdf
- http://shinex-auto.com/userfiles/file/46652551613.pdf
- http://vilaportugal.com/wp-content/plugins/formcraft/file-upload/server/content/files/160795877c0df8---92400034883.pdf
- https://alatheir.com/atheirwsfiles/file/80205320288.pdf
- http://karate-talence.com/newsite/userfiles/files/15543609227.pdf
- http://domholidays.com/userfiles/file/85118735739.pdf
- https://tamtam.com.ua/wp-content/plugins/super-forms/uploads/php/files/1f84c918cc13b837684d150c1b9b3df0/kubekawujosevexozuzopo.pdf
- https://foxtailmag.net/wp-content/plugins/super-forms/uploads/php/files/2309d538f227b415aa8fc899c8e40957/joselajes.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/cv9VXjIrmdE/uplcv?utm_term=difference+between+embolic+and+thrombotic+stroke
- https://medlineplus.gov/ischemicstroke.html
- 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_off0000eff3.bin6650ddfd90425af7dd37843df07c3791f7c129756398c1e160a6170b46d3bda0 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEFF3 | 17196 bytes |
font_01_sfnt_off00011ce7.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11CE7 | 16792 bytes |
font_02_sfnt_off000134fe.binfa5c4cfa4e1204729a91d619fde1bd48d457807eacf943f0ee86f7816936d762 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x134FE | 11060 bytes |
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