MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file was identified as malicious by ML classifiers and ClamAV, indicating a phishing or malware distribution intent. It functions as a link farm, with numerous embedded URLs pointing to compromised CMS uploads and disposable domains. These links likely lead to further malicious content or phishing sites, serving as a distribution mechanism.
Machine Learning
- Nyx PDF Classifier malicious score 0.9988
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 http://primaria-ciocirlia.ro/media/file/famuzogajexuz.pdf
- http://serendipityorlando.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd6c2b325aa---jobudozexomam.pdf
- https://funkydrop.shop/wp-content/plugins/super-forms/uploads/php/files/e78565a8ecabfb486d705811aab44516/66982885144.pdf
- https://goldengrowers.com/wp-content/plugins/super-forms/uploads/php/files/0aad73479c1f0eef1c50a5ed7f532b56/bejazo.pdf
- https://propbrains.com/wp-content/plugins/super-forms/uploads/php/files/s8bpbomi8e00vooo90pjrabis4/saxudinebaxulod.pdf
- http://aksaxena.com/bpms/includes/fckeditor_uploads/userfiles/file/81974785116.pdf
- http://vipavtoufa.ru/wp-content/plugins/super-forms/uploads/php/files/1bef02b2f43fc695905cd62a55af5340/xupuzewe.pdf
- https://ontime-taxi.kg/wp-content/plugins/super-forms/uploads/php/files/777b6fd5b4b18ff1aeaabea72be2fd6d/77893500856.pdf
- http://ohmytour.kr/FileData/ckfinder/files/20210723_1FFBF6D95D9221D1.pdf
- http://stfrancisfrankford.com/clients/9/90/9051900d87e3fdd5bc97eff612ac54c4/File/zopusuralepu.pdf
- http://nnk.gr/wp-content/plugins/formcraft/file-upload/server/content/files/160f6ffc20f8b8---61037135479.pdf
- http://aedelsur.com/contenido/files/nulenira.pdf
- https://www.intermediastudios.com.mx/wp-content/plugins/super-forms/uploads/php/files/22f861be89eb189d1811a380e1ada93d/dujekilizova.pdf
- http://bienbao.net/uploads/files/6657147136.pdf
- https://kfz-gutachter-oliver-schiller.de/wp-content/plugins/formcraft/file-upload/server/content/files/160966de95195c---wifuxux.pdf
- http://optimus.org.au/wp-content/plugins/formcraft/file-upload/server/content/files/1608f5bffe07eb---mufuwoxufowaropitiki.pdf
- https://patriot.ch/wp-content/plugins/super-forms/uploads/php/files/hskmcma992hg1nqg7jg8tsd4ag/jelebuxafupa.pdf
- https://ekransamara.ru/files/54988551876.pdf
- https://sv-fin.ru/wp-content/plugins/super-forms/uploads/php/files/ff5067b21d9e776a9bc269a10b51c45b/9185249786.pdf
- https://www.albispanaderia.com/wp-content/plugins/super-forms/uploads/php/files/6c4cf64f9773ae0cf69c098f32d81fe5/vepowisezitenepomafexubin.pdf
- http://cafesezony.ru/fck_editor_files/files/34244447663.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=fall+guys+ultimate+knockout+race+friv
- 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_off0000f80b.bindcdd53b46dced9cfceaf619b98cb0c2df45b2407e0f5778e25882fe191a4d5af |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF80B | 17448 bytes |
font_01_sfnt_off00012578.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12578 | 16792 bytes |
font_02_sfnt_off00013d8f.bin07940493fa721aa42a59178182ff526cdcfead48ae6e177aa67d8741dd4b95ef |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13D8F | 11028 bytes |
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