MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.001 User Execution: Malicious Link
This PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as Pdf.Phishing.Trojan. The numerous embedded URLs, many hosted on compromised WordPress sites or disposable domains, suggest a link farm designed to redirect users to malicious content. The primary attack pattern involves luring users through these links, likely for phishing or to download further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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://archism.ru/uplcv?utm_term=how+to+attach+a+scanned+document+to+an+email PDF link annotation
- https://www.abaco-engineering.it/wp-content/plugins/formcraft/file-upload/server/content/files/1608659bebb97d---40515695635.pdfIn PDF document text
- http://harmonie-avion.fr/actualite/files/gazesafasogo.pdfIn PDF document text
- http://szjwwj.com/userfiles/file///fimegupalotudositiwulunot.pdfIn PDF document text
- http://dobrejaja.com/Upload/file/91560645176.pdfIn PDF document text
- https://sevsport.info/wp-content/plugins/super-forms/uploads/php/files/98d8337310d2abb46cf274bc5f822c90/47487379642.pdfIn PDF document text
- https://vdbergelectro.nl/wp-content/plugins/super-forms/uploads/php/files/b5e7691c0a9237ec3e8ec08187817a6b/62549076333.pdfIn PDF document text
- http://nanumed.ro/uploads/files/nosuza.pdfIn PDF document text
- https://kantankacreative.com/wp-content/plugins/super-forms/uploads/php/files/fcc494fa172724d5a47b0aad804ba326/lunoferano.pdfIn PDF document text
- http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/b77842c4b4eb0a4f4d8d215d5f54ec96/94348233525.pdfIn PDF document text
- https://pfgmm.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607e37dd7fe74---50116189510.pdfIn PDF document text
- http://www.majorisinvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609255c66a65e---76464636580.pdfIn PDF document text
- http://shelton1961.com/clients/35589/File/xalojo.pdfIn PDF document text
- https://www.aserspa.net/wp-content/plugins/super-forms/uploads/php/files/qr5vsgd3v7pg4nbj27eb5k2lf8/39013767265.pdfIn PDF document text
- http://jmvlpslimited.com/ci/userfiles/files/mefutosepozuziri.pdfIn PDF document text
- https://bodegoncriollo.com/userfiles/file/90725635097.pdfIn PDF document text
- https://rrvchefs.com/wp-content/plugins/super-forms/uploads/php/files/5177f7775bf96a9481a539460abd498d/87262887784.pdfIn PDF document text
- https://parklanehotel.asia/userfiles/file/kotin.pdfIn PDF document text
- https://digireg.se/upload/36093942727.pdfIn PDF document text
- http://opalbiosciences.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ed9847cfca0---28993711499.pdfIn PDF document text
- http://graham1978.com/clients/79565/File/pekobujazezu.pdfIn PDF document text
- https://www.lindopoint.it/wp-content/plugins/super-forms/uploads/php/files/a109f890e20057acfe40e0d5ab8df10d/71144506498.pdfIn PDF document text
- https://webgirls-studio.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d5879e86d6---lozavaduliwomilijela.pdfIn PDF document text
- http://boxerdapolenta.com/cmsimple/images/file/gabulopajibu.pdfIn PDF document text
- https://udachi.co.th/wp-content/plugins/super-forms/uploads/php/files/9di33t0e9l8q5nr1p00r49ms11/90611951731.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000c998.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC998 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e1af.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE1AF | 10712 bytes |
SHA-256: 17a52a750f6b8443234de2ea83cde3860e964934263357e0e2aa80d47886a48e |
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font_02_sfnt_off0000fa12.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFA12 | 15232 bytes |
SHA-256: da733716979b06ea62bcdf134369eab2fedaf56972f9423befefeb209988fe85 |
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