MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. Numerous URLs were extracted, many pointing to compromised CMS upload directories, suggesting a link farm designed to redirect users to malicious content. The PDF structure and embedded links are indicative of a phishing or malware distribution campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
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 https://allytemp.ru/uplcv?utm_term=merge+multiple+pdf+files+into+one+using+foxit+reader
- http://www.theagentpipeline.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a4570ce7643---zikugopilozikibanixut.pdf
- https://archltginc.com/wp-content/plugins/super-forms/uploads/php/files/d02af11fdf1190e749945bf57d5f82b7/4702588982.pdf
- http://mxm-hosting.nl/img/editor/file/90853185564.pdf
- https://ecoinkworld.com/wp-content/plugins/super-forms/uploads/php/files/f3434b01bd2b74e5d98b505fab82f05f/kiwuzozomaseloka.pdf
- http://banphimchuot.com/userfiles/file/tikoluzeferejatemoparat.pdf
- http://twothirdsmajority.us/clients/38522/File/gekonoxigabufuzi.pdf
- http://www.apsetedavisi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b57f9022c1---kezitetugo.pdf
- https://almuhja.com/ckfinder/userfiles/files/vuzam.pdf
- http://haworthclassof73.com/clients/73472/File/63689020114.pdf
- https://accuratesearch.com/userfiles/file/venogu.pdf
- http://kotolantopeni.cz/file/jirulebolojazelodi.pdf
- http://olddieselparts.com/ckfinder/userfiles/files/53378588268.pdf
- http://verkoop-je-wagen.be/wp-content/plugins/formcraft/file-upload/server/content/files/160cc5fa9d0320---98489100434.pdf
- https://www.gsccn.it/wp-content/plugins/formcraft/file-upload/server/content/files/1608cdf1932006---76967595080.pdf
- http://archi1919.com/smlclub-files/file/83524473289.pdf
- http://cdwy028.com/uploadfile/file/20210527221949.pdf
- http://stillincontact.com/images/mails/file/93413980921.pdf
- http://odnoklassniki-files.ru/images/uploads/files/nokitafoli.pdf
- https://pezenasenchantee.fr/userfiles/file/8689960052.pdf
- http://orderleesushi.com/uploads/files/46375263160.pdf
- https://yarsan.ru/wp-content/plugins/super-forms/uploads/php/files/3ecd53290cf5a6fc40d0177af902a3fe/75071080028.pdf
- https://hsegroup.ru/wp-content/plugins/super-forms/uploads/php/files/tecsfm77r0q71hodh5ov987c15/46796002449.pdf
- http://kimwendelldesign.com/ckfinder/userfiles/files/vexuxisoselife.pdf
- http://moveisgarciadigital.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1608936a4a1da4---72687323.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_off0000d90f.bin61b54cd6caf40615eb83260a1d776373266c6ced875807376ad777fd84a2ab56 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD90F | 18520 bytes |
font_01_sfnt_off00010955.bin710a324e2ea00c8fdec7f33fccc22dc666be6e4a4dfb6304f12e86ce363a0111 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10955 | 11036 bytes |
font_02_sfnt_off000122cf.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x122CF | 16792 bytes |
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