MALICIOUS
104
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains numerous embedded URLs, with several heuristics indicating it functions as a link farm. Notably, some links point to compromised WordPress upload storage, suggesting a tactic to obscure the origin of malicious content or to manipulate search engine results. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious link farm.
Machine Learning
- Nyx PDF Classifier malicious score 0.9971
Heuristics 6
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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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 http://whatdwellswithin.com/file/20045454119.pdf In PDF document text
- http://sibaco.ru/ckfinder/userfiles/files/97121215285.pdfIn PDF document text
- https://signaturetowerpune.com/wp-content/plugins/super-forms/uploads/php/files/7pgkdhkjj6uvj5a73qi6td1ss1/54736135961.pdfIn PDF document text
- https://signika.pl/Upload/file/kivem.pdfIn PDF document text
- https://stgeorgedentalcare.in/ckfinder/userfiles/files/1912443491.pdfIn PDF document text
- http://pcccphucvinh.com/upload/files/benoramidixefajakuvaw.pdfIn PDF document text
- http://amon-syotengai.com/userfiles/file/95131070811.pdfIn PDF document text
- https://hfdjet.com/wp-content/plugins/super-forms/uploads/php/files/ba9b531d823c48975759fcf3ff3beb26/17685477951.pdfIn PDF document text
- http://graviroz.hu/ckfinder/userfiles/files/83082870518.pdfIn PDF document text
- https://suhrsmad.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16075fa183d0c6---fapif.pdfIn PDF document text
- http://fygl.net/uploads/file/280718065696.pdfIn PDF document text
- https://domilot.com/uploader/files/vipusu.pdfIn PDF document text
- http://nmglyxx.com/userfiles/file/wogivakiba.pdfIn PDF document text
- http://www.viksexteriors.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609f2036aba7f---75964248552.pdfIn PDF document text
- http://www.191seo.com/wp-content/plugins/formcraft/file-upload/server/content/files/160e3639c406db---39687552127.pdfIn PDF document text
- https://amesmedicalservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a15da87dc46---pogupuzineruzuwesezuw.pdfIn PDF document text
- http://bapassamarinda.id/assets/ckfinder/core/connector/php/uploads/files/tiwegaguwugasori.pdfIn PDF document text
- https://www.darrellstuckey.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a36b703e5a5---9232504526.pdfIn PDF document text
- https://wilsonbarrera.com/inicio/wp-content/plugins/formcraft/file-upload/server/content/files/16073cc7dd213d---ruxamasedelizelowobenadiw.pdfIn PDF document text
- https://evenimentecastel.ro/wp-content/plugins/super-forms/uploads/php/files/2t2hnau9u3hjmp6936272n0jhb/29606013429.pdfIn PDF document text
- https://coopinproject.eu/ckfinder/userfiles/files/zojesikikemov.pdfIn PDF document text
- https://kudamatsu.org/userfiles/file/zozepujejogivagizos.pdfIn PDF document text
- https://aftaplan.com/works/peepsparty/html/upload_files/file/18213183345.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/PmAiG5ZyT-k/uplcv?utm_term=league+of+legends+apk+and+obbPDF link annotation
- 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_off0000fb8c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB8C | 17548 bytes |
SHA-256: 05c1734fd780e90d36b682714dedf001a79964398a98f52bb5bdb97379e67233 |
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font_01_sfnt_off000129cb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x129CB | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000141e2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x141E2 | 10672 bytes |
SHA-256: 7f6933979de1734e2839b598a366bde96dc5f01a8d5d79ec38e2132125fbda61 |
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