MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
This PDF was flagged by multiple heuristics as malicious, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. It functions as a link farm, directing users to various external URLs, some of which host further PDF documents. The presence of multiple compromised CMS upload links and disposable hosting indicates a pattern of distributing malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9943
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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://hzkontejnery.cz/ckfinder/userfiles/files/57420380700.pdf
- https://proff-doors.ru/wp-content/plugins/super-forms/uploads/php/files/c0515fcf310bc86188dbfb31b131d30a/95564630023.pdf
- http://bodymindspiritconnection.org/clients/5/53/53f1eac0d8ee32431a47b4e1af774f29/File/19399792384.pdf
- http://perfectthesale.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f047cef3816---mekixavasaleza.pdf
- http://beachfirebrands.com/userfiles/file/30231234980.pdf
- http://puppies-4u.com/clients/e/e7/e7f09595da74c05d2059c741134300d2/File/titowedamisorojipowa.pdf
- http://kistours.hu/userfiles/file/68572876077.pdf
- http://amctop.com/board_data/editor_img/file/202105191021.pdf
- http://wawa757.com/uploads/files/79986454838.pdf
- https://parisautotravel.com/wp-content/plugins/super-forms/uploads/php/files/5fvecn5td167ouc392hknspve0/bexar.pdf
- http://aven.su/userfiles/file/37957310880.pdf
- http://jan-fotografie.nl/upload/files/pizuvujobekiku.pdf
- http://wellfoto.cz/pictures/files/najitulo.pdf
- https://araprinter.com/ckfinder/userfiles/files/sejis.pdf
- https://aiaciran.org/cache/fck_files/file/xumetoduranekegagek.pdf
- https://otdelkamos.ru/wp-content/plugins/super-forms/uploads/php/files/99099c1558c7aa6bb11e82c350f53078/20984946042.pdf
- http://ghalemdi.com/userfiles/file/vamedokokujavazij.pdf
- http://juha.be/_files/file/debijixu.pdf
- http://xn--szabowski-tub.pl/userfiles/file/putomijamavuzusivudigun.pdf
- http://gf-location.fr/wp-content/plugins/formcraft/file-upload/server/content/files/160c560a56c006---zusuwumuj.pdf
- http://slmj8.com/data/userfiles/files/7688548790.pdf
- https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/16098126646a0d---82716450310.pdf
- http://reneenicoleevents.com/clients/865995/File/kuturutikaj.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/ngfLrbzwjls/uplcv?utm_term=four+picture+one+word+answers+4+letters
- 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_off0000cd6f.bine6c4098a301a737915ff840226b96eeb6bb29810d1f1d0cd59b87a9f0f157b0f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCD6F | 16924 bytes |
font_01_sfnt_off0000f99b.bin0658c43bb0cd94247ba662948ebf67aaf4e99808e7aa2fc6ad29ee2390dc35b2 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF99B | 10748 bytes |
font_02_sfnt_off0001128a.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1128A | 16792 bytes |
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