MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains numerous embedded URLs, many of which point to compromised websites and are structured as a link farm. The ML classifier strongly indicates maliciousness, and the heuristic firings suggest this PDF is part of a link farm on disposable hosting. While no scripts were directly extracted, the nature of the embedded links suggests a potential for redirecting users to malicious content or phishing sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9990
Heuristics 5
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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 http://bezpieczna-strefa.pl/wp-content/plugins/super-forms/uploads/php/files/6b34d3dc606e754c076a1d0a6c7f02d6/84655453888.pdf In PDF document text
- https://sasalidayanisma.org/uploads/file/98448272266.pdfIn PDF document text
- https://thehamptonsbloomington.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f6baee457c---61442780994.pdfIn PDF document text
- http://akicgiyim.com/userfiles/file/nefofokuzuxofor.pdfIn PDF document text
- https://locoffice.ru/userfiles/file/75212920933.pdfIn PDF document text
- http://grani-tonkogo-mira.ru/wp-content/plugins/super-forms/uploads/php/files/08b8b1d751d9aa1c99c125679508ce73/29899570079.pdfIn PDF document text
- https://floorco.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/3a3a3fd153e5baf09b6f6d54b5c66585/96696620620.pdfIn PDF document text
- http://www.kocay.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160c393cd02819---2434220967.pdfIn PDF document text
- https://b2cexpressdemo.com/userfiles/file/danerulibugobufaxifavoj.pdfIn PDF document text
- http://discarga.com/wp-content/plugins/formcraft/file-upload/server/content/files/160876fb8cdcd3---likavolodetepodeb.pdfIn PDF document text
- http://krindustria.com.br/site/wp-content/plugins/formcraft/file-upload/server/content/files/160b03caa0fb5d---15045051411.pdfIn PDF document text
- https://www.ideaklinikankara.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071d38233c5a---41098221083.pdfIn PDF document text
- https://alnahamgroup.com/userfiles/file/xeruxizunive.pdfIn PDF document text
- http://www.platformliften.info/wp-content/plugins/formcraft/file-upload/server/content/files/160cbbf5456911---jaziperodojuvet.pdfIn PDF document text
- https://smoothnomad.com/wp-content/plugins/super-forms/uploads/php/files/nsjnv7jqkpfqa9p82q80ipe8k9/30818414697.pdfIn PDF document text
- https://atlanthealth.com/wp-content/plugins/super-forms/uploads/php/files/4ca53fd041f8738bb1f1a82a390c2778/gutafetokudisuvesewovidod.pdfIn PDF document text
- http://www.tenniscanberra.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160c1bdbe9563b---biropujiwevoxafejup.pdfIn PDF document text
- https://realestateconnect.pro/wp-content/plugins/super-forms/uploads/php/files/i37hq72vkdbcugr5lmnnm5pug6/sumoboledevalojikifujafuf.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=itunes+trailers+usPDF 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_off00011e62.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11E62 | 17536 bytes |
SHA-256: dba0a6732bc6a46cd5b9234c77ee337343bde821d1da34d8f285c2dc8905a88c |
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font_01_sfnt_off00014bc9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14BC9 | 10032 bytes |
SHA-256: 3ec164d72b360cc8f53f9a3b2a684341245f2521be94eefc1c427f2f712e736e |
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font_02_sfnt_off00016233.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x16233 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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