MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a large number of embedded URLs, many of which point to compromised CMS upload storage or disposable hosting, indicating a link farm designed to redirect users. The ML classifier strongly flagged this PDF as malicious. While no scripts were extracted, the heuristic firings suggest a malicious intent to lure users to external sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.9992
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.uppld.org/wp-content/plugins/formcraft/file-upload/server/content/files/16099fdb531c11---peluwimuvi.pdf
- http://aeskulap24h.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608852a4a3f76---xutoropazunowuribazoj.pdf
- http://canyonoaksmtg.com/~duckdi5/canyonoaksmtg.com/content/file/88424501189.pdf
- https://b2b-intelligence.it/uploads/file/bukanasod.pdf
- https://www.lenoir-elec.com/wp-content/plugins/super-forms/uploads/php/files/85hclbam90ofc9rm0ido1s5mnc/53298498075.pdf
- http://headrepublic.pl/images/files/81562357437.pdf
- https://www.lorenzofranzone.it/wp-content/plugins/super-forms/uploads/php/files/5a8d4a47ccf53fe02654f555232ca3f6/luguto.pdf
- http://agnieszkapawlik.com/userfiles/file/wifiket.pdf
- http://opalbiosciences.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a567d770a77---93684243487.pdf
- http://accessiblevehicleservices.com/userfiles/file/6661956101.pdf
- https://joefairless.com/wp-content/plugins/super-forms/uploads/php/files/2dfb2425472f8d3e6f2f6cf5f37a5f9f/10625678921.pdf
- https://cvsc.co/userfiles/file/63850859804.pdf
- http://www.jcca.co.in/wp-content/plugins/formcraft/file-upload/server/content/files/160ade8f12e0a8---18692698253.pdf
- https://sieuviet.net/webroot/img/files/xorebujujekulijesufolijej.pdf
- http://www.sunaryem.com.tr/wp-content/plugins/super-forms/uploads/php/files/42552fn455qqroolf2tp2nlhb2/19213138244.pdf
- http://chocolatycakes.com/wp-content/plugins/formcraft/file-upload/server/content/files/160d211564e43f---gufokutipaporexazonaji.pdf
- http://www.catalogodecineargentino.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609df1fbb0468---tosijuli.pdf
- https://controlcert.se/wp-content/plugins/formcraft/file-upload/server/content/files/1609ad2d721566---vojavirutiwakopuzijiduti.pdf
- https://performanceltg.com/wp-content/plugins/super-forms/uploads/php/files/ea3dddb0b3eedeb4032c529b83678fe3/87133681064.pdf
- http://zabradli-znerezu.cz/userfiles/file/lejagikamuvisudapamidiwak.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=young+justice+season+3+episode+1+watch+online
- 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_off0000e5e0.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE5E0 | 16792 bytes |
font_01_sfnt_off0000fdf7.bin6b8b9636eb0e95a099e1872d282d858cfb834e92584c2ab075fd6b6fc395c900 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFDF7 | 11216 bytes |
font_02_sfnt_off0001181a.bin8db80156ece0a196fe8f3d0733324fbeafccf3c5ee2dacbf7cc9f0e072b0cbde |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1181A | 17168 bytes |
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