MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains numerous embedded URLs, many pointing to compromised WordPress sites, suggesting a link farm designed to redirect users to malicious content. The presence of PDF_URI and PDF_SEO_DISPOSABLE_LINK_FARM heuristics further supports this attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9998
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://huntic.ru/uplcv?utm_term=all+4+app+screen+mirroring PDF link annotation
- https://www.kiteschule-kiel.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608aa71dc47a5---posijowevinazikasuzoko.pdfIn PDF document text
- https://massagetheory.ca/wp-content/plugins/super-forms/uploads/php/files/38b2cb72a9333d58bb3e5bc8664f8331/52140384751.pdfIn PDF document text
- http://stylist.in.ua/wp-content/plugins/formcraft/file-upload/server/content/files/160ae494d04991---lujesonirepovujabukula.pdfIn PDF document text
- https://inchiriereelicoptere.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160721af17e978---62679510716.pdfIn PDF document text
- https://gtsonline.nl/wp-content/plugins/super-forms/uploads/php/files/tik6omp703pa97ea5enbl1d91n/33948672124.pdfIn PDF document text
- https://hartwellcook.com/wp-content/plugins/super-forms/uploads/php/files/20dd8c651481bfb61e979b4913120768/vijiviwakapubakifel.pdfIn PDF document text
- https://arerp.kr/data/file/%5C/74011282516.pdfIn PDF document text
- http://accessiblevehicleservices.com/userfiles/file/59479916725.pdfIn PDF document text
- https://www.intermediastudios.com.mx/wp-content/plugins/super-forms/uploads/php/files/e66301f66d354a7be817b75f5652aa19/36594685661.pdfIn PDF document text
- http://activesolutionelectric.com/images/file/27880562617.pdfIn PDF document text
- https://viajespereira.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608ff3bb5119e---zotadumubodolefilixugu.pdfIn PDF document text
- http://builderall.info/userfiles/file/fanure.pdfIn PDF document text
- https://travelselection.us/wp-content/plugins/formcraft/file-upload/server/content/files/16095feb8bc145---41039904535.pdfIn PDF document text
- http://onnetsolution.in/userfiles/file/losexidunulif.pdfIn PDF document text
- https://terravistahometeam.com/wp-content/plugins/super-forms/uploads/php/files/4f5914c648c60dade189a8355c4c33b4/45119952118.pdfIn PDF document text
- http://qiuyutv.com/userfiles/files/20210602034651.pdfIn PDF document text
- https://www.grandeprairie.org/wp-content/plugins/formcraft/file-upload/server/content/files/1609a2222b0667---nodirabejuwumete.pdfIn PDF document text
- https://markzone.az/wp-content/plugins/super-forms/uploads/php/files/i6ikh486cirumit5141bvuvie6/lawagebufonipifeb.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn 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://scripts.sil.org/OFLIn PDF document text
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00010437.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10437 | 5328 bytes |
SHA-256: 4cc732c215adc5065107fdd92029286c8ace8f7c59cf6b96e474ce9cf76b3685 |
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font_01_sfnt_off0001164a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1164A | 11096 bytes |
SHA-256: fcff959651dea25e919e4c9317b60cf153289f2cef7eb461973cdadda0144e9a |
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