MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a link farm pointing to multiple compromised WordPress sites, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent, likely to redirect users to malicious content or download further payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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://samiznojmo.cz/wp-content/plugins/super-forms/uploads/php/files/e0204e24c5f34c4bc10f003a12b96a56/kumanavefabom.pdf In PDF document text
- https://www.formwork.co.uk/wp-content/plugins/super-forms/uploads/php/files/5dt7saeghbl654eci4b8lsn1ft/vojuzedodaxa.pdfIn PDF document text
- https://www.ediliziaindustriale.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d53378d01d---fafafuzoxevoj.pdfIn PDF document text
- http://premiumresourcing.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608f8085e2a66---58301689519.pdfIn PDF document text
- https://grand-forge.ru/wp-content/plugins/super-forms/uploads/php/files/906818dfab272d14c6e57a758cd14881/54466267765.pdfIn PDF document text
- http://duonglaohanoi.com/userfiles/file/48050001716.pdfIn PDF document text
- http://s8radziejowice-paszkow.pl/userfiles/file/buwuzijogeva.pdfIn PDF document text
- http://coffee33.ru/archive/file/belebunanad.pdfIn PDF document text
- https://personalloan2u.com/wp-content/plugins/super-forms/uploads/php/files/7a863571c8cbe23647277e8b8dde2428/12163990992.pdfIn PDF document text
- https://damiel.eu/userfiles/file/6883783776.pdfIn PDF document text
- http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b9a552fcdd---pasanunaveluvap.pdfIn PDF document text
- http://imagespa.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160aa79355e646---tuxivepizatur.pdfIn PDF document text
- https://palcev.ru/userfiles/file/piralosuzavujaxosojubebad.pdfIn PDF document text
- https://www.davinci.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1607741631b886---21471147647.pdfIn PDF document text
- https://primax.fr/wp-content/plugins/super-forms/uploads/php/files/lbhutnhbc7o1lnmbghntkea6b7/kobodorosug.pdfIn PDF document text
- http://aliceinformaticasrl.com/user/pages/15362362208.pdfIn PDF document text
- http://inspirationallabels.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160982e594224a---32615803703.pdfIn PDF document text
- https://gccpay.net/wp-content/plugins/super-forms/uploads/php/files/ff40a1fff40c1009df67a672a5681457/96482405693.pdfIn PDF document text
- https://theemperorsoldclothes.co.uk/wp-content/plugins/super-forms/uploads/php/files/eapsc4727ca07sq7cf8st1u2l8/nabeb.pdfIn PDF document text
- http://www.training4thefuture.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1609f6ae7a32c1---81971388086.pdfIn PDF document text
- http://docando.es/js/ckfinder/userfiles/files/74704783026.pdfIn PDF document text
- https://www.elitelawnsolutions.co.uk/wp-content/plugins/super-forms/uploads/php/files/nf0uhrv58su2dbgmdobd3bnpb2/40913484273.pdfIn PDF document text
- http://springswellness.net/wp-content/plugins/formcraft/file-upload/server/content/files/160873817cea2d---robagabodugipiteforixojo.pdfIn PDF document text
- http://gd-weimi.com/upfolder/e/files/20210619144801.pdfIn PDF document text
- http://scissortailfarms.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ae373589542---60795973257.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/1KS0DP0cxss/uplcv?utm_term=biology+multiple+choice+questions+pdfPDF link annotation
- 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_off0000e3c6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE3C6 | 11220 bytes |
SHA-256: 655df3cb204f03559c5832f77e1c2e16c502955f701f9aafd5fc5047ae497147 |
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font_01_sfnt_off0000fd62.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD62 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00011574.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11574 | 17388 bytes |
SHA-256: cdcf753134e6b2efe14304bb5cbd27c0b86b84f4f7d5be04f38e4f95f0a9acce |
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