MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains numerous links to external websites, many hosted on compromised CMS platforms or disposable domains, suggesting a link farm or phishing lure. The PDF structure and embedded links are consistent with techniques used to redirect users to malicious sites for further exploitation.
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://rocksoliddesigns.biz/userfiles/file/24173881662.pdf
- http://isspskola.lv/userfiles/files/79014238040.pdf
- http://szjwwj.com/userfiles/file///4197999089.pdf
- https://mithermomix.com.mx/wp-content/plugins/super-forms/uploads/php/files/9cd82ce14644e15a26661543006923c8/79260753282.pdf
- http://www.chinahkcarplate.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b92526b742c---wonafirobibif.pdf
- https://carthink.org/wp-content/plugins/formcraft/file-upload/server/content/files/16081bfe222a5f---sotomirukilomuke.pdf
- http://beloezoloto.ru/userfiles/file/20826658396.pdf
- http://www.fliesen-brill.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606d0163594e7---pasawa.pdf
- http://stringquartet.biz/web/images/fck/file/zeber.pdf
- http://springswellness.net/wp-content/plugins/formcraft/file-upload/server/content/files/160aa75a5ba685---77254545134.pdf
- http://fewo-spreewald-schoetzigk.de/brandenburgtag/img/editor/file/telazibogebi.pdf
- http://rothemtour.com/FileData/ckfinder/files/20210901_69F74A305B28C265.pdf
- http://www.melodypods.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610abad9be13e---bopobuzawumutufedoj.pdf
- https://nhaban24h.com.vn/wp-content/plugins/super-forms/uploads/php/files/4dsv86fk46splk1ar2t1ojl4c8/sudomise.pdf
- https://adasms.fr/userfiles/file/wenakurukolirokuwidiw.pdf
- https://www.asahinadigital.com/wp-content/plugins/super-forms/uploads/php/files/8rl8nfgf49ph5aujnf9vuju346/37016846299.pdf
- https://studiogreenwich.ru/wp-content/plugins/super-forms/uploads/php/files/0287e2d58417ff474f9ddb9bc231820f/zevekovux.pdf
- https://www.actionconstructionjax.com/wp-content/plugins/super-forms/uploads/php/files/f5e9997efece06689c8ec1b17400d8bd/78137262570.pdf
- http://spokoino.ru/i/upload/files/girulojezebafelol.pdf
- https://beachesbrewing.com/wp-content/plugins/super-forms/uploads/php/files/0ac9dc5d9f9dea78c54b40bf1e711f2e/97979378890.pdf
- http://immobiliareborghi.com/userfiles/files/87929621280.pdf
- https://anup.bo/images/files/85020291770.pdf
- http://thamcohoaian.com/webroot/img/files/74316806750.pdf
- http://raunlarose.us/wp-content/plugins/formcraft/file-upload/server/content/files/16071a29625065---26430389200.pdf
- http://ahdongjiu.com/upload_fck/file/2021-5-5/20210505233139666553.pdf
- https://feedproxy.google.com/~r/skout/mBVl/~3/A3Ryygt5BCM/uplcv?utm_term=medicaliza%C3%A7%C3%A3o+do+corpo+feminino+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_off0000ee30.bin217082b9861856f976329ab5f0d7ff962ca92b8c3cfdcde9d3a47e70fb09a30d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEE30 | 21284 bytes |
font_01_sfnt_off0001241c.bin41da1bd4e9d9183f26bbaf2c4870800af77d32cbe01fcf4299eb938f17380cd8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1241C | 11032 bytes |
font_02_sfnt_off00013cf6.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13CF6 | 16792 bytes |
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