Malware Insights
The file is identified as malicious by ML classifiers and ClamAV, with multiple heuristics indicating it functions as a link farm pointing to compromised CMS uploads and disposable hosting. The embedded URLs, such as http://aprendanow.com/wp-content/plugins/super-forms/uploads/php/files/4691433d29bc2307890e16040df4cb75/relutekarurapovamadokejof.pdf, are likely used to host or redirect to malicious content. Although no scripts were explicitly extracted, the PDF structure and URL patterns suggest an attempt to deliver a secondary payload or phish users.
Machine Learning
- Nyx PDF Classifier malicious score 0.9942
Heuristics 6
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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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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://yziact.fr/wp-content/plugins/super-forms/uploads/php/files/ed9jo6hmtqhrsbn5e97jk9q3s7/zerotegiviganulu.pdf
- http://precedent.by/_newsite/images_from_html_editor/file/fewedumelogurof.pdf
- https://www.lowdoc-loans.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16080e6e3c2fcb---8763917675.pdf
- http://aprendanow.com/wp-content/plugins/super-forms/uploads/php/files/4691433d29bc2307890e16040df4cb75/relutekarurapovamadokejof.pdf
- https://skyzoan.com/cake/beta/userfiles/file/navolode.pdf
- https://web-sila.ru/wp-content/plugins/super-forms/uploads/php/files/de7bd4c27511189734fe86ebd2085d90/fixafebowosil.pdf
- https://www.elementstraining.co.uk/wp-content/plugins/super-forms/uploads/php/files/0sejjt5duficlasdgnfr5i9pg9/sidekopasiwida.pdf
- http://getawaynewzealand.co.nz/wp-content/plugins/formcraft/file-upload/server/content/files/160c4852092ace---vinukomodebexovagad.pdf
- http://cablexconsulting.com/Upload/file/rababezonud.pdf
- https://airbays.com/userfiles/file/45073311429.pdf
- https://kakvkusno26.ru/wp-content/plugins/super-forms/uploads/php/files/47b63c06579ae469a5e3d407bcb9fab7/nuveriwugofedefavinilumak.pdf
- https://www.audifonosdoshoydos.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d687aa8b71---jenosubutujoresozom.pdf
- http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ce8d5be4ea---66602206641.pdf
- http://drinkandshrink.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160c26276ab91a---83873923718.pdf
- https://ventana-sur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a6f95a91023.pdf
- http://projectbudapest.hu/wp-content/plugins/formcraft/file-upload/server/content/files/1607d70d33f604---29994893706.pdf
- https://genesislighting.net/wp-content/plugins/super-forms/uploads/php/files/1183db18f4b282036c63c341d2c42ccd/dukezofewu.pdf
- http://thietbiotoviet.com/Images_upload/files/wogunujonova.pdf
- https://swotin.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8d53b7bf9f---78055878011.pdf
- http://ipceurope.eu/assets/file/xeroj.pdf
- http://aep-tc.com/cache/fck_files/file/zinafax.pdf
- http://manufim.co.il/wp-content/plugins/formcraft/file-upload/server/content/files/160a8c2b661a63---15037496350.pdf
- https://jaunimodienos.lt/wp-content/plugins/super-forms/uploads/php/files/ll9um8jtmqn8pcg07hofdc8jb4/sosemebaxodibeji.pdf
- https://mindweave.co.uk/wp-content/plugins/super-forms/uploads/php/files/kk0kj22lapbi1svsra1rerfo40/17548023467.pdf
- http://lalitas-thaimassage-spa.de/wp-content/plugins/formcraft/file-upload/server/content/files/160ae57f794c3e---51379872522.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=project+scheduling+in+project+management+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_off0000f576.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF576 | 16792 bytes |
font_01_sfnt_off00010d88.bin42e1167668412c6a449d09ba2770056d8fa643b83100d51502d162b516805690 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10D88 | 17108 bytes |
font_02_sfnt_off00013a15.bin592c39fe6525b536c2035dd8781360ecb2b497c2d9bc8fa4ef95b2aa2d8367e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13A15 | 11296 bytes |
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