MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file was detected as malicious by ClamAV and a machine learning classifier. It contains numerous external URIs, many pointing to compromised WordPress sites, suggesting a link farm designed to redirect users to malicious content. The presence of embedded URLs and the nature of the heuristics indicate a phishing or malware distribution attempt, likely delivered as a spearphishing attachment.
Machine Learning
- Nyx PDF Classifier malicious score 0.9803
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://crysiq.ru/uplcv?utm_term=c%2B%2B+programs+for+class+11+cbse+pdf PDF link annotation
- https://www.numberoneporthill.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160ee0b9664dc5---32207026654.pdfIn PDF document text
- https://bawwabatrizq.com/userfiles/file/91929709207.pdfIn PDF document text
- http://gapoom.com/upload/fckeditor/file/lukapokur.pdfIn PDF document text
- http://orgue-chantepie.info/FCKeditor/upload/file/33906585540.pdfIn PDF document text
- http://www.jcca.co.in/wp-content/plugins/formcraft/file-upload/server/content/files/160d46c50c50bb---fisulezade.pdfIn PDF document text
- http://www.rkcomdesignservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a601b4803cf---80010131675.pdfIn PDF document text
- http://middlegeorgiacoinclub.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609d0979c4795---4351668333.pdfIn PDF document text
- http://studiotecnicobonoli.com/userfiles/files/6014982087.pdfIn PDF document text
- http://renovfab-menuiserie.com/userfiles/file/23605549772.pdfIn PDF document text
- https://longhoang.vn/upload/files/23359286765.pdfIn PDF document text
- http://www.laterveer-biesenbeek.nl/ckfinder/userfiles/files/kujabevo.pdfIn PDF document text
- http://ahdjcm.com/upload/files/82074458340.pdfIn PDF document text
- https://npkfertilizerproduction.com/d/files/gomigelidujubibinem.pdfIn PDF document text
- http://becro-plast.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160f4d63a32c34---1454251864.pdfIn PDF document text
- https://glowskincare.net/wp-content/plugins/super-forms/uploads/php/files/0d5295caca64a71805fe5768b1b062a5/57744434294.pdfIn PDF document text
- https://www.lindopoint.it/wp-content/plugins/super-forms/uploads/php/files/05f19b50d407b8f0e27f959e8c7b047e/tizajiwuvinavojibarad.pdfIn PDF document text
- https://ecableapp.com/FCKeditor/FCKimgUpload/file/jaxevamugapetufop.pdfIn PDF document text
- https://traveletrust.com/basefile/traveletrustcom/files/19033225927.pdfIn PDF document text
- https://mertlakustika.cz/images/pages/file/firuwegilazop.pdfIn PDF document text
- https://inchirierielicopter.ro/wp-content/plugins/formcraft/file-upload/server/content/files/16096e66245719---waritozononudaxanizi.pdfIn PDF document text
- http://brandnewgoods.net/userfiles/file/6348949203.pdfIn PDF document text
- https://larioenergy.net/uploads/file/boleru.pdfIn PDF document text
- http://www.empresasdelimpeza.info/wp-content/plugins/formcraft/file-upload/server/content/files/16084b0415d6ff---senaravujomutiretesogerin.pdfIn PDF document text
- https://ewms.vn/wp-content/plugins/super-forms/uploads/php/files/nequvviqj5ok3ei0d36kihr3a1/22930462672.pdfIn PDF document text
- https://gomaihoa.net/upload/files/55667398757.pdfIn PDF document text
- http://bfr-bialapodlaska.pl/userfiles/file/nefumusutigub.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_off000126df.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x126DF | 19340 bytes |
SHA-256: 7018b6836d8622f9aa8898080e39a28f37b7e0d74295e08232ac7273073e73db |
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font_01_sfnt_off000159a7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x159A7 | 10892 bytes |
SHA-256: 409a1b7678fa8664beeaa53c90c4418125ce4012f380102df8cf2ed7c7c127e6 |
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font_02_sfnt_off00017287.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x17287 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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