MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a large number of external URIs, many of which point to compromised WordPress sites. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to deliver a phishing lure or download a second-stage payload. The embedded JavaScript is likely responsible for redirecting the user to one of the malicious URLs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9980
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://irlanc.ru/uplcv?utm_term=planet+email+instellingen+android PDF link annotation
- http://www.christinemartin.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16141edebe6edd---5926146619.pdfIn PDF document text
- http://robertwestlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/manapelisufojinufali.pdfIn PDF document text
- http://adm.stikom-db.ac.id/js/uploads/files/xegasimebupitesax.pdfIn PDF document text
- http://thienminhgroup.com/uploads/userfiles/file/jatodidonagunigej.pdfIn PDF document text
- https://jeevadhara.org/work/london/userfiles/file/93418229655.pdfIn PDF document text
- https://www.oalysa.cz/ckfinder/userfiles/files/xugelalosagomurunomesim.pdfIn PDF document text
- https://ag-concept.ru/wp-content/plugins/super-forms/uploads/php/files/5a3c25661a93ebb28fdaa5d3572cab43/xunureboni.pdfIn PDF document text
- http://espressobuilders.com/app/webroot/files/userfiles/files/35100062290.pdfIn PDF document text
- https://partetesal.ir/data/file/90372498568.pdfIn PDF document text
- https://rebates.forex/wp-content/plugins/super-forms/uploads/php/files/v6k1mg25a4274vg5rmq08o3rr6/7576568323.pdfIn PDF document text
- http://jungvassar.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/93290532645.pdfIn PDF document text
- https://west-holding.com/userfiles/file/12868696828.pdfIn PDF document text
- http://usagimatur.com/files/others/54865240433.pdfIn PDF document text
- http://proart.by/media/file/tugokavimadobobugazipav.pdfIn PDF document text
- http://maymaygiaydachidang.com/upload/files/vobubisazifizesazam.pdfIn PDF document text
- http://singlesync.com/userfiles/file/23180109478.pdfIn PDF document text
- https://adikketiga.com/contents/files/24291061771.pdfIn PDF document text
- https://alarouba.com/ckfinder/userfiles/files/10495287516.pdfIn PDF document text
- http://volareinmongolfiera.it/userfiles/files/7035266856.pdfIn PDF document text
- http://yibetter.com/data/files/xovavofufubaxaw.pdfIn PDF document text
- https://howardsteeves.com/wp-content/plugins/super-forms/uploads/php/files/a5ad39b7d9fbd85555dc71366dce4e45/87869903254.pdfIn PDF document text
- https://giltmorestukko.hu/ckfinder/userfiles/files/dugofafogisomedajope.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_off0000b8f3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB8F3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d10a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD10A | 10592 bytes |
SHA-256: d8b7c7fc0d1540386c2c5a33fa689490a303fc30366b643bdfdf08882698849a |
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font_02_sfnt_off0000e8f7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE8F7 | 19872 bytes |
SHA-256: 9b7d8e9f8df8d3ff35f9c86e9ef0cde6e620039c7b36e4a8fff5810c6bf63fce |
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