MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1055.012 Process Injection
The PDF contains a link farm pointing to multiple compromised WordPress sites, a common tactic for phishing and malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to deliver a secondary payload or redirect to a phishing page. The presence of multiple PDF_SEO_DISPOSABLE_LINK_FARM and PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM heuristics further supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
Heuristics 6
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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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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://www.sussexweddingservices.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16075bd3cebbcd---waxafuzebiwojasuma.pdf
- http://restorationteleconference.com/clients/73716/File/setez.pdf
- http://traiteur-ribot.fr/userfiles/file/95827541531.pdf
- https://blackknowledge.com/wp-content/plugins/super-forms/uploads/php/files/ff70be845176fff38c0ea5f9e5eae871/16978950711.pdf
- https://g-ortho.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160bc0d6822cb8---57207258802.pdf
- http://grandchainfamilyfoundation.org/clients/85333/File/pekukowegegebikadopolise.pdf
- http://nuraski.pl/wsg/userfiles/1854148626.pdf
- http://graphicon.hu/wp-content/plugins/formcraft/file-upload/server/content/files/16098bd80bcdc0---lugememajil.pdf
- http://hiddenforrest.net/clients/76790/File/rifiputetibuk.pdf
- https://eyetracking.pl/userfiles/file/5739657836.pdf
- https://a2designbg.com/userfiles/file/bodufakoxuxebusumodo.pdf
- https://www.heracles-hotel.eu/wp-content/plugins/super-forms/uploads/php/files/19a9lq772raijl2sf0s70mum6e/26466396161.pdf
- http://call.ae/wp-content/plugins/formcraft/file-upload/server/content/files/16071907090ddd---29862622609.pdf
- https://dixietemporarystorage.com/wp-content/plugins/super-forms/uploads/php/files/f949dcc7e1661267ed3b62eac4879508/7322392875.pdf
- http://southportrubbish.com/wp-content/plugins/formcraft/file-upload/server/content/files/160844cc14da96---zusajituzakizif.pdf
- https://teenvolunteerdallas.org/wp-content/plugins/super-forms/uploads/php/files/cdd2f5d6d320217d9093d1539d6b1dab/47368352624.pdf
- http://aaaexpressac.com/userfiles/file/99742160747.pdf
- https://master.plus/wp-content/plugins/super-forms/uploads/php/files/706a74ee27d7da14639ec4d3eb57e2f4/pekovadigedokunevoriki.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/3CAf4wW3hvY/uplcv?utm_term=dry+mouth+after+drinking+water
- 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_off000111a8.bin42a6fe87afe24cf3a1438130427b76df7dc428151d01a25a3637daa9e6330078 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111A8 | 17528 bytes |
font_01_sfnt_off00013f4f.bindb238b599240fe4e98b959bf33662b971b4bbddebd62ba0fe9351ee6c5291b12 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13F4F | 10980 bytes |
font_02_sfnt_off0001587e.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1587E | 16792 bytes |
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