MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. Heuristics indicate it functions as a link farm, with many URLs pointing to compromised WordPress sites. While no scripts were explicitly extracted, the nature of the links suggests a redirection to malicious or phishing content, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9949
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://adm.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/038e609d49493f02c22e8e132a22e6c7/dasedum.pdf
- http://www.hptindia.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a2e0bdc2560---soritev.pdf
- http://lncxjzxxw.com/upload_fck/file/2021-6-29/20210629161326742264.pdf
- http://lbs.ac.at/wp-content/plugins/super-forms/uploads/php/files/3h99noqbr2uhhjcrfrns366457/33927710180.pdf
- https://menu2uplus.com/images/file/37542792815.pdf
- http://signexpowholesale.com/project-new/christianbook/upload_images/file/13107277706.pdf
- https://www.nobleorthodontic.com/wp-content/plugins/super-forms/uploads/php/files/cb7a5686a5256429d17eb6ae51723b7e/kenexazokibokuvipumipigi.pdf
- https://www.intermediastudios.com.mx/wp-content/plugins/super-forms/uploads/php/files/3b49256a44be3667a1cca3705bea16ac/94455630301.pdf
- https://etre-cheval.fr/Applications/MAMP/htdocs/etre%20cheval/news_pix/file/5355387569.pdf
- https://ajitcoatings.com/uploads/39009075346.pdf
- https://xn--8--clcp3bi.xn--p1ai/files/kopudipewosasupasononi.pdf
- http://dok-vo.ru/userfiles/file/55015619485.pdf
- http://airconbank.com/upload/fckeditor/file/joduvomiwunonogikip.pdf
- https://www.westcountrystoves.co.uk/wp-content/plugins/super-forms/uploads/php/files/4cbee00559c386ceaf5f6af9dc5e7052/naxiruma.pdf
- https://catwalkdogcome.com/editor_upload_image/file/venerabusirulupufo.pdf
- https://mmszke.hu/files/file/wedujiv.pdf
- https://realestateconnect.us/wp-content/plugins/super-forms/uploads/php/files/6tovtb7e7euil8rbj5vei5b3r4/nigonovidub.pdf
- http://riggi.ru/userfiles/file/28973456170.pdf
- https://bravo-hk.com/userfiles/file/31935622803.pdf
- http://bigxra.com/uploadfile/file/2021051012382973499.pdf
- https://atx-stroy.ru/wp-content/plugins/super-forms/uploads/php/files/1b41c9133fe6a7ddaa674fb88d5f78a7/sixifaxewupu.pdf
- http://www.realisthotel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d83c7e1fa7---debajar.pdf
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608cb0180477c---jukosisaporelabalulevosop.pdf
- http://skoleniridicubrno.cz/ckfinder/userfiles/files/85611003011.pdf
- https://feedproxy.google.com/~r/Uplcv/~3/6naE_Nh8_CY/uplcv?utm_term=simple+word+search
- http://perfecturology.cafe24.com/upload/editor/imagefile/97911622461.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_off0000d3a0.bin51cfaddf6287c4031d4d8dddfa2bb9af142e9db33cc1170efb034e60666eeba1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD3A0 | 10740 bytes |
font_01_sfnt_off0000ec43.bin3b058ea60b48eea5b0193682ef26a364c8c0bb64933e86372b3330527453c2a1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEC43 | 16844 bytes |
font_02_sfnt_off00011847.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11847 | 16792 bytes |
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