MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample is a PDF containing embedded JavaScript, which is a common technique for delivering malicious content. It also features a link farm pointing to compromised WordPress upload storage and disposable hosting, indicating a phishing or malware distribution attempt. The ClamAV detection and ML classifier strongly support its malicious nature, likely as a phishing lure.
Machine Learning
- Nyx PDF Classifier malicious score 0.9938
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 http://www.sbawerribee.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/160b569ea77116---73051029899.pdf
- http://bijverhoeven.nl/uploads/files/42241674502.pdf
- https://www.heracles-hotel.eu/wp-content/plugins/super-forms/uploads/php/files/4v5h6bkfrdud4fsr6tpskssuv7/jibuwe.pdf
- http://lookupagency.es/wp-content/plugins/formcraft/file-upload/server/content/files/160e4f8c4827bf---fidorizadogejenareruji.pdf
- https://brokenspoke.com/wp-content/plugins/super-forms/uploads/php/files/3f1fd7da113befdfc4084f0a9a1c8391/27740956700.pdf
- http://classicalgardenornaments.com/uplds/file/42836879519.pdf
- http://sh-songshi.com/admin/upimg/file///jajaluvikujolokusu.pdf
- http://www.molinoag.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d2dd1a9684---91454916012.pdf
- http://gentlemensquartersbarbershop.com/wp-content/plugins/super-forms/uploads/php/files/ae96be28bc404ab8f4a59f547e08ac55/gerafetewixifolaf.pdf
- http://architettotoma.it/userfiles/files/zugat.pdf
- http://mattstergamer.com/wp-content/plugins/super-forms/uploads/php/files/1ncg9o1u38e31g9pv1dprmq1cr/dubub.pdf
- http://blow-w124.com/js/upload/files/kabotigenexuv.pdf
- https://massagetheory.ca/wp-content/plugins/super-forms/uploads/php/files/20f456573beede88282c52a6ee87a521/batadelupirezo.pdf
- http://www.sbawerribee.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1606c8056ba302---nasefage.pdf
- https://fitnessrev.net/wp-content/plugins/super-forms/uploads/php/files/2514vqdrnncq7b4elilssb6dv3/dozikeporazovidetenufor.pdf
- https://www.bouwenaaneensterkwerkgeversmerk.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160b5e71108dda---xutinakogojakutomejorafu.pdf
- https://arerp.kr/data/file///telanabuz.pdf
- https://rosemonttherapy.health/wp-content/plugins/super-forms/uploads/php/files/5solbuls2leluclhv7tp1cmalj/6600656757.pdf
- https://njsolarpower.com/wp-content/plugins/super-forms/uploads/php/files/c1cc8389aab8742a137ac4d15ff77834/43640004388.pdf
- http://www.marcado.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160dbd4b5e4303---gutotibuxumunezopeta.pdf
- https://smilepath.com.au/wp-content/plugins/super-forms/uploads/php/files/892be9aa02547f69aaf049c4ec246fc4/garajurizilewesuladal.pdf
- https://arerp.kr/data/file///nutevesipi.pdf
- https://www.lenoir-elec.com/wp-content/plugins/super-forms/uploads/php/files/b2fn5arh3u88e3p4df7etvfmo3/mimibemakoderememumar.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/DOqCt-cVA4I/uplcv?utm_term=army+separation+code+jkq
- 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_off00012b7b.binbd587d88853f2036151ff9cd781ae0b83ac0727dce054bfa60e4ba99152a78d7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12B7B | 11092 bytes |
font_01_sfnt_off00014526.bina40f8ddc5488cc4e3b35dcc69cb2c736786dbcc059858ae4804d746c82fd1781 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14526 | 17088 bytes |
font_02_sfnt_off000171e0.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x171E0 | 16792 bytes |
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