MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a link farm with numerous URLs pointing to compromised CMS upload directories, indicating a likely attempt to redirect users to malicious sites. The ML classifier strongly flagged this PDF as malicious, supporting its use in a phishing or malware distribution campaign. No scripts were extracted, but the structure and URL patterns suggest a downloader or redirector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
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 https://philabc.ru/uplcv?utm_term=the+great+gatsby+chapter+6+vocabulary
- https://medgarlci.com/wp-content/plugins/super-forms/uploads/php/files/8371ff744e0bdc6d1aab1e3fa2b36325/7085362489.pdf
- https://www.actionconstructionjax.com/wp-content/plugins/super-forms/uploads/php/files/79b98af53accfde57176ae41042f6c93/5516655425.pdf
- https://maugli24.ru/wp-content/plugins/super-forms/uploads/php/files/bd99e6c652b51456726c8a7ff7b3edb1/xavisinorinoxuf.pdf
- http://www.sunarsurdurulebilir.com/wp-content/plugins/super-forms/uploads/php/files/ivl3sfb5cag32o70juhveq3u44/berufi.pdf
- http://edu-family72.ru/content/images/uploads/file/zevugobojaxalilijirobukag.pdf
- https://cakenepal.com/userfiles/file/38277233421.pdf
- https://fobiy.net/wp-content/plugins/super-forms/uploads/php/files/3ea0515225efb1fd103c815c560bdbbc/wedosafigidosifowiwezovi.pdf
- http://creativeindustries.ru/uploads/userfiles/file/jagajovupadikamoselak.pdf
- http://www.qookspot.kitchen/wp-content/plugins/formcraft/file-upload/server/content/files/160b50222632d1---34762477286.pdf
- https://www.landalastadservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609b09b9e1a35---60720921588.pdf
- http://bygreenpure.com/userfiles/file/72549336877.pdf
- http://uss100.com/clients/5/56/562308f4da1da23328cfd9e5c9f3e68f/File/80467368288.pdf
- http://nacyc.jp/Upload/file/77868619412.pdf
- http://uyaviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a89f976127---ruzode.pdf
- https://p87.hu/files/boxalonusetexepujor.pdf
- http://www.alfapilates.pl/upload/file/63469600508.pdf
- http://jfhcoaching.nl/userfiles/files/wedake.pdf
- https://singaporenotarypublic.com/wp-content/plugins/super-forms/uploads/php/files/86e162fb26f226e93be0b4195f07ffee/filareto.pdf
- https://hoovermaids.com/wp-content/plugins/super-forms/uploads/php/files/196413c12ad1250438e6e9683cdf4866/76534821504.pdf
- http://seanmore.com/userData/board/file/75025143365.pdf
- https://carstenrath.com/wp-content/plugins/super-forms/uploads/php/files/6rvhoh6cfbo8hbut1v1upc5lop/kanosituw.pdf
- https://ahi.com.ua/wp-content/plugins/super-forms/uploads/php/files/ca7f8b0e5d37212efe2bcad614d1cb08/28095338423.pdf
- https://fiambreszav.com/wp-content/plugins/super-forms/uploads/php/files/c74090e1bb6053477c80a110f0bbdc51/mevurenivomemaveribex.pdf
- http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160a3380f61f21---zipufozafadasabon.pdf
- https://www.verpoort-bouw.be/wp-content/plugins/formcraft/file-upload/server/content/files/160b9a867c6fb8---kojixafarara.pdf
- 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_off0000f9bb.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF9BB | 16792 bytes |
font_01_sfnt_off000111cd.binab3476bc560f88d738b1c76b63d601b9e015024b38dc66e7190ff226cde1409a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111CD | 16824 bytes |
font_02_sfnt_off00013d3f.bin497029596bd5e07adb503fa344859ee0c034279ee3693e29004126007b2cc1ee |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13D3F | 11008 bytes |
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