MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains embedded JavaScript and numerous external URIs, many of which point to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content or phishing pages. The primary attack pattern involves luring users through these links, likely as part of a phishing campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9835
Heuristics 7
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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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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://crewmak.ru/uplcv?utm_term=most+adjective+used+in+english
- http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/1609ad219a4d75---594019907.pdf
- https://prairieroseclothiers.com/FCKeditor/file/45847144142.pdf
- http://xn--49s538bo8ux8c.net/userfiles/file/87744172544.pdf
- https://samarpanbharat.org/trila/userfiles/file/ravag.pdf
- https://sidexsideaudio.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b8a20773193---bexusira.pdf
- http://ptk-astana.kz/wp-content/plugins/super-forms/uploads/php/files/3f61179d6cfacf0c50ad061b3ac58d8e/2425124104.pdf
- http://ontheedgeofnow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16071ee68e411f---duxudexotatugukipotel.pdf
- https://xanbiente.de/userfiles/file/51095817863.pdf
- http://www.dnevi-sekretarjev.eu/wp-content/plugins/formcraft/file-upload/server/content/files/160af565d81367---31517108901.pdf
- http://amfmeg.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607a080d81fa7---61576441947.pdf
- http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/89rg2o7td7loqjs2tcj3angkb2/48133209785.pdf
- https://arrayamed.com/userfiles/file/98393451718.pdf
- https://masterok-kovka.ru/wp-content/plugins/super-forms/uploads/php/files/a330a66bc664fd31c4b2235302bbcee0/sazut.pdf
- https://delphin-restaurant.com/ckfinder/upload/files/99130410876.pdf
- http://www.immiflex.com/wp-content/plugins/formcraft/file-upload/server/content/files/16099e18a4766f---bularedasowexosu.pdf
- https://fortlauderdale-carservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/160807aa0c2d1d---dimatelejesawejebopen.pdf
- https://lightupalife.org.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160868b99b9725---78914768000.pdf
- https://birgatour.mn/js/ckfinder/userfiles/files/31781034493.pdf
- http://sladkiy-ostrov.ru/userfiles/files/foxawizefuzoxam.pdf
- https://suhrsmad.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1609ecb8ca5ff0---gitasulepovoxupovo.pdf
- http://standrewsparishhighschoolclassof1964.com/clients/70428/File/funinifasaxox.pdf
- https://vakukh.ru/wp-content/plugins/super-forms/uploads/php/files/2410bdbf998ab6958620fdb945c23a0c/sasazelisejejogokeg.pdf
- https://pilotcenter.gr/wp-content/plugins/super-forms/uploads/php/files/s1fo8eff4rpdp8e5iuf8qnpqq5/taxisogudanopemubi.pdf
- https://www.birdandwildlifeteam.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608b2263d065e---jegadusomorefizi.pdf
- https://vmkstroi.ru/wp-content/plugins/super-forms/uploads/php/files/f2a9335b85d1706724a48712f63569cb/70735636423.pdf
- http://nd-58.ru/wp-content/plugins/super-forms/uploads/php/files/e285e9566d56bbe13ac9685779ea784b/pibafe.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_off000108f5.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x108F5 | 16792 bytes |
font_01_sfnt_off0001210c.binc17f2c57e55ca0c7f4bd2692130daba235accede150a2fc7f1081e7d229f0fe3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1210C | 10840 bytes |
font_02_sfnt_off000139cb.bina8a3b832f6e56d2e7ce671740146f210f11c97af93a2da3fc6096bbb1f740d5c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x139CB | 17100 bytes |
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