MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The ML classifier strongly indicates maliciousness, supported by heuristics identifying the PDF as a link farm pointing to compromised WordPress uploads. The document body, though heavily obfuscated, contains references to 'wkhtmltopdf' and a date, suggesting it was generated programmatically. The embedded URLs are hosted on compromised CMS sites, likely serving as a distribution point for further malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://www.morenoroofing.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075c2f332700---kexujawuderurapifafojewuk.pdf In PDF document text
- https://2greenchicks.com/wp-content/plugins/super-forms/uploads/php/files/7de0ee22211172bce443acec5dede07b/solinote.pdfIn PDF document text
- http://www.combatsim.eu/wp-content/plugins/formcraft/file-upload/server/content/files/16074298c8a22c---42677051158.pdfIn PDF document text
- https://www.tctnanotech.com/wp-content/plugins/super-forms/uploads/php/files/a9d9406336ebc5c05802cf063f9e29c7/27597723299.pdfIn PDF document text
- https://www.andyselfstorage.co.uk/wp-content/plugins/super-forms/uploads/php/files/7mjgaaurir3vlr0ldhs1cfdsd9/12269257179.pdfIn PDF document text
- http://parkwestresidences.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a0646dafc7---zaberewajususezokalo.pdfIn PDF document text
- https://baodinhsolar.com/wp-content/plugins/super-forms/uploads/php/files/593fpssm1p81l5rhefq4f5f12f/86599585151.pdfIn PDF document text
- https://growmytruck.com/wp-content/plugins/super-forms/uploads/php/files/7c1bb119f47f73e977bc1fc3e0b93642/kureraz.pdfIn PDF document text
- http://ampletrekking.com/userfiles/file/39412794107.pdfIn PDF document text
- http://allseasonsart.com/uploads/fck_uploads/file/24731278226.pdfIn PDF document text
- https://alignerco.com/wp-content/plugins/super-forms/uploads/php/files/1f5ed0b520d5cddb0d6cf870e58282fc/80071644206.pdfIn PDF document text
- http://meble-tk.pl/userfiles/file/39051699992.pdfIn PDF document text
- https://happycustomerservice.com/wp-content/plugins/super-forms/uploads/php/files/74dda0899f970f43e350a1865ed4e4d9/43101444742.pdfIn PDF document text
- https://youstore21.com/wp-content/plugins/super-forms/uploads/php/files/d984a2594d03ddcc2c209ad054941cd1/pejuvapat.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608704e0cc1e8---jodirozam.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=chorale+from+jupiter+piano+sheet+musicPDF 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d763.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD763 | 5236 bytes |
SHA-256: 70c61156c11bc2e60704d260b9d3e52811da67f9bf8747fcb12425c29951bbef |
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font_01_sfnt_off0000e906.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE906 | 10664 bytes |
SHA-256: 441d454de19d6b365f5cddf802a0fc5981e1256792fbc84cd09976d1a738576b |
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