MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many of which point to compromised websites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The ML classifier strongly indicated maliciousness, and the presence of compromised CMS upload links further supports a malicious intent, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9965
Heuristics 5
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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://laborke.ru/uplcv?utm_term=how+to+delete+all+text+messages+at+once+on+android PDF link annotation
- https://demircanticaret.com/userfiles/file/kigufedada.pdfIn PDF document text
- http://lmtechsolution.com/userfiles/jinomitizigivaxegoxe.pdfIn PDF document text
- http://saktigroup.in/uploads/fejivazobuj.pdfIn PDF document text
- http://elijasprojekts.lv/files/file/puxilufabigepin.pdfIn PDF document text
- https://yk-tech.com.tw/ckfinder/uploads/ckfiles/files/batofosufawugadazusanu.pdfIn PDF document text
- http://csc0851.com/userfiles/file/20210918185146_5luno1.pdfIn PDF document text
- http://explosivedevices.ru/media/file/19776611773.pdfIn PDF document text
- http://silarperu.com/UserFiles/file/sapirorebavekixiweg.pdfIn PDF document text
- https://parisautotravel.com/wp-content/plugins/super-forms/uploads/php/files/6qrnho1jjsh86o5f7dp2a5vuc3/60057841444.pdfIn PDF document text
- http://makaifruits.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613e7591447f7---13786159034.pdfIn PDF document text
- https://cosmopolitanhotelbg.lastrada.bg/uploads/wysiwyg/files/mexikinewefiri.pdfIn PDF document text
- http://cementfeet.com/userfiles/file/20494188190.pdfIn PDF document text
- https://akgoz.zemta.com/uploads/files/14748957662.pdfIn PDF document text
- https://massagetheory.ca/wp-content/plugins/super-forms/uploads/php/files/3a90a099ec6c016823ea2b2e40c77a50/pekam.pdfIn PDF document text
- https://jesssmithtri.com/jesssmith/ckfinder/userfiles/files/98636925061.pdfIn PDF document text
- https://incoyun.com/calisma2/files/uploads/zozepirojofes.pdfIn PDF document text
- http://kencert.vn/uploads/image/files/nizepodatol.pdfIn PDF document text
- https://sammycar.ch/sammy/sites/default/sammyfiles/newsletterfile/vudajunuwewidove.pdfIn PDF document text
- http://www.la-rocca.pl/app/webroot/files/files/94505793344.pdfIn PDF document text
- http://stmarysharipad.com/userfiles/file/samolinasepepagiren.pdfIn PDF document text
- https://www.lang-mayer.de/wp-content/plugins/formcraft/file-upload/server/content/files/1614095726a2ab---zijunaramemibafutijasafo.pdfIn PDF document text
- https://crc.creativechange.net/ckfinder/userfiles/files/ketebigogorubi.pdfIn PDF document text
- http://telefoonindex.nl/images/uploads/77270911640.pdfIn PDF document text
- http://ark-mr.com/data/home/qxu2063190031/htdocs/uploadfile/files/kukopatekane.pdfIn PDF document text
- http://jongauger.com/userfiles/file/17833088238.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_off0000b1bc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB1BC | 15556 bytes |
SHA-256: 0a26ab7f59d9f1982eebfe4689cf6349f7458c9e87591b756d9d468088eab362 |
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font_01_sfnt_off0000d93f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD93F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0000f156.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF156 | 10892 bytes |
SHA-256: ea155b96b1dca3ffeeedd5cd4a4bdb2f44816ea4192b4b6a321159c8d12262bc |
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