MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, indicating a link farm designed to redirect users to malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely phishing or malware delivery through these links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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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://infrive.ru/uplcv?utm_term=an+android+virtual+device+that+failed+to+load PDF link annotation
- http://studiotecnicomartani.eu/userfiles/files/93535057291.pdfIn PDF document text
- http://bioident.pl/photos_fck/file/21586821786.pdfIn PDF document text
- http://dejede.com/userfiles/file/43713548092.pdfIn PDF document text
- http://apsara.ru/userfiles/file/32524270096.pdfIn PDF document text
- https://www.harnoordesigns.com/wp-content/plugins/super-forms/uploads/php/files/2c82c078ea41166ca4260499cc33dfe1/tajimakat.pdfIn PDF document text
- https://diversifiedhumansolutions.com/wp-content/plugins/super-forms/uploads/php/files/98fadb5dbc5ff2610f0b8c5cc9fe1294/buxufigesigo.pdfIn PDF document text
- https://vvpta-irvine.org/userfiles/file/janajipasesamojevopileguw.pdfIn PDF document text
- http://tumakuruvoice.com/tumkurvoice/ckeditor/ckfinder/userfiles/files/nuvasuwuwupoguluninako.pdfIn PDF document text
- http://tehnicgaz.eu/files/file/zajofefifewagafigeriba.pdfIn PDF document text
- http://yakutiaprime.ru/SITE/files/editor/file/kagis.pdfIn PDF document text
- https://hchoanglong.vn/userfiles/file/79668411573.pdfIn PDF document text
- http://confidenzacsapagy.hu/upload/sabopirade.pdfIn PDF document text
- https://apexforestservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613bc65f3ee50---78633419736.pdfIn PDF document text
- http://hani-bee.com/userfiles/files/ratonu.pdfIn PDF document text
- https://ewms.vn/wp-content/plugins/super-forms/uploads/php/files/urttpvravd9j1bicboaenh3hur/tinumukomazogo.pdfIn PDF document text
- http://akcihlar.cz/userfiles/file/buzapuna.pdfIn PDF document text
- https://qualitygums.com/userfiles/file/vogopuwajiwi.pdfIn PDF document text
- http://automsystem.com/UploadFile/file/20210907040830067.pdfIn PDF document text
- http://ipublicity.cz/data/file/zobupixutad.pdfIn PDF document text
- http://matsusushionline.com/uploads/files/73701097715.pdfIn PDF document text
- https://insights3.com/wp-content/plugins/super-forms/uploads/php/files/be281a79ff18361d27b84196927f070d/lijiraremenatogezakapido.pdfIn PDF document text
- http://jcpingie.be/public/files/28164641427.pdfIn PDF document text
- http://balmybnb.com/t/tutorfirm/uploads/ck/files/34134372990.pdfIn PDF document text
- https://olterus.net/contents/files/20235057952.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_off0000d901.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD901 | 10552 bytes |
SHA-256: 4f5bac1d5edcb953bd68d88a33df31bcfeb6df754e8a2b4ff7ce440c4681b708 |
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font_01_sfnt_off0000f0fd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF0FD | 16792 bytes |
SHA-256: ddea624defe1ebfcf13cfaaaf7a11c231c816133d64f26faea0e47fc3bceba34 |
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font_02_sfnt_off00011c9e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11C9E | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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