MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF contains embedded JavaScript, which is a common technique for executing malicious code. The file also features a link farm pointing to multiple compromised WordPress sites, suggesting an attempt to distribute malware or conduct phishing. The ClamAV detection and ML classifier strongly indicate malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9937
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://chcial.ru/uplcv?utm_term=surface+water+infiltration
- https://simplehome.ro/ckfinder/userfiles/files/migipevaradokawaz.pdf
- https://www.finestkindcharter.com/wp-content/plugins/formcraft/file-upload/server/content/files/16084bf94bd2b5---vakajetabasup.pdf
- https://baohohoanglong.com/userfiles/file/67870931607.pdf
- https://prikolnaya.com/wp-content/plugins/super-forms/uploads/php/files/b431b2b8518cc18351ec24854268122c/xepofona.pdf
- https://juhaszautovill.hu/userfiles/file/remodelasevubogatamuloriv.pdf
- http://aaaexpressac.com/userfiles/file/benipowipubovufez.pdf
- https://watertorens.nl/userfiles/file/jobowokorejukenubebubopi.pdf
- http://goteneplast.se/files/images/file/wabakogetituver.pdf
- http://www.zav-mito.si/wp-content/plugins/formcraft/file-upload/server/content/files/160bb7c70b4d20---70179705469.pdf
- http://interreg-ipa-husrb.com/downloads/43310766281.pdf
- http://fsanaq.com/upload/file/210617060734691949b7us5jh4e61x.pdf
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b4bdcaa5694---bikelivaresibaz.pdf
- https://www.hed-endo.hr/wp-content/plugins/formcraft/file-upload/server/content/files/1608c26b19086f---59847306457.pdf
- https://ceilford.org/wp-content/plugins/super-forms/uploads/php/files/225e00f81d5340788bd35c64ad5ed331/faluwakiruse.pdf
- http://www.victorian-manor.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/16075e8bd7972a---67077790151.pdf
- http://daieimotors.com/js/upload/files/27193543507.pdf
- https://erinmillssmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/3ku8udba3nnav4i2011kul9re5/51580919563.pdf
- https://israelonthehouse.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609842c8d4b91---17012295404.pdf
- http://harchovyk.com/userfiles/file/bamirodotupelewija.pdf
- http://studioarchperissinotto.eu/userfiles/files/31681609050.pdf
- http://svs-pm.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c7163d08fee---54546741691.pdf
- https://agrotehholding.ru/wp-content/plugins/super-forms/uploads/php/files/423054d27106f1e60709a607fa2a8c18/45005114036.pdf
- http://barrarioservicos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16083946c5d7cf---vikitomavewebavisixoxit.pdf
- http://abapaposentados.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160822f472023b---28763369053.pdf
- http://thrifty-uy.com/files/others/24746510768.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_off00010093.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10093 | 16792 bytes |
font_01_sfnt_off000118a5.bin8d80e94c929d4e1f4ecd6bcef62354007ba49c53716633764bd2e72976e98c46 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118A5 | 17544 bytes |
font_02_sfnt_off000146a5.bin4f93b8e0a41bda8ea9acecbca8a3ca74a422a0e5b1869c45341a3da455423ca5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x146A5 | 10420 bytes |
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