MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous URLs pointing to compromised WordPress sites, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to lure users to external sites for further compromise.
Machine Learning
- Nyx PDF Classifier malicious score 0.9822
Heuristics 7
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://crysiq.ru/uplcv?utm_term=brain+drawing+with+parts
- http://sciencevier.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087c9a1c1e52---masetisopox.pdf
- https://msr-hudsonproperties.com/wp-content/plugins/super-forms/uploads/php/files/565d306878b4702044f64552721f6f67/641876151.pdf
- https://www.brunosistemi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b42c902551d---jatefokezo.pdf
- https://englewoodgrassfarm.com/wp-content/plugins/super-forms/uploads/php/files/8fa754b94147485e348e87ecdf238458/86549771966.pdf
- https://forkidsvietnam.vn/wp-content/plugins/super-forms/uploads/php/files/1tr11uuau9h4dp8b2m5hpnlpf0/wetipeledawugota.pdf
- http://legalinet.eu./userfiles/files/bepagulok.pdf
- https://advicezone.org.uk/wp-content/plugins/super-forms/uploads/php/files/vlnsn9jnsgr5l8cb66aj8l6p2h/36742185604.pdf
- http://opusincertum.it/userfiles/files/77294488766.pdf
- https://michaels-limo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a31718d2049---71526599527.pdf
- http://oaklandscreche.ie/userfiles/files/diboxijojafokuliluvide.pdf
- https://sfasg.jp/js/ckfinder/userfiles/files/buzorowazesite.pdf
- http://www.moteco.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160946ba9913ce---84293007411.pdf
- http://goodtraefarm.com/ckupload/files/30776360661.pdf
- https://www.hospedeagora.com.br/wp-content/plugins/super-forms/uploads/php/files/2ckbe9tsdfccbr5ninrss285aj/lebegesawe.pdf
- http://vietkinggroup.com/uploads/userfiles/file/8289479252.pdf
- http://hainescentreasia.com/images/file/15679787313.pdf
- https://nceptionsolutions.com/wp-content/plugins/super-forms/uploads/php/files/b7a6c0be7e1ff0e6e01d5107b9413026/56572140693.pdf
- http://www.marcelasemper.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bb703721e14---56893238036.pdf
- http://3handseg.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cb8d056c5b---kajos.pdf
- http://www.maderas-navarro.com/ckfinder/userfiles/files/zisafapagesamedalotoweg.pdf
- https://biothiennam.com/media/ftp/file/sosim.pdf
- http://xn--l3cbpp3gh4a5g5c.com/userfiles/files/rimojopipotubej.pdf
- http://kadh.kr/bobod/upload/file/15651904791.pdf
- https://sirikulsteel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c799ad97200---fogejukirigorekuragajid.pdf
- http://bebelino.ru/userfiles/file/jukudilojikunalegeka.pdf
- https://landlorddebtadvisory.com/wp-content/plugins/super-forms/uploads/php/files/jqlds0ltmj31qqphn2nvpfrbs3/99226418152.pdf
- https://2greenchicks.com/wp-content/plugins/super-forms/uploads/php/files/3859cefb68e6cf9efb7d46513eb64084/97717613376.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_off0000fa2d.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA2D | 16792 bytes |
font_01_sfnt_off0001123f.binfad2f2d12cfd3533be883dd334b919eb1325af8e25ddf57b30caf218b829f2a7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1123F | 16976 bytes |
font_02_sfnt_off00013e88.bin874580d8078ace62899119f0f3bbd98927ae8440ead7be8d28db2d55adcc186d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13E88 | 10512 bytes |
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