MALICIOUS
104
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external URIs, many of which point to compromised CMS upload storage or are part of a link farm on disposable hosting. The ML classifier strongly indicates maliciousness. The embedded JavaScript likely facilitates the redirection to these malicious sites, which are designed to deceive users.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://nomylo.ru/uplcv?utm_term=skyblock+map+minecraft+pe PDF link annotation
- https://calendarsunrooms.com/userfiles/files/41766212471.pdfIn PDF document text
- http://arcadia-fitness.es/userfiles/file/bofivigazonokase.pdfIn PDF document text
- http://barbusci.it/maisUserFile/file/87209038000.pdfIn PDF document text
- http://urduhadith.org/survey/userfiles/files/zikotawuw.pdfIn PDF document text
- http://bjerkelunden.org/content/files/userfiles/file///75164580989.pdfIn PDF document text
- http://www.movingintofreedom.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614180364fe42---pobulitox.pdfIn PDF document text
- http://www.jacenter.org/js/ckfinder/userfiles/files/jowebunufunepavanolu.pdfIn PDF document text
- https://serrechevalier-skifun.com/imagesfile/najeza.pdfIn PDF document text
- http://seosanhrd.com/userfiles/file/xelilojanawabatoziw.pdfIn PDF document text
- http://suachuaspa.com/upload/images-content/files/likenuja.pdfIn PDF document text
- http://stagelight.pl/userfiles/files/34888635910.pdfIn PDF document text
- http://bualuang101.com/backoffice/upload/files/16932151723.pdfIn PDF document text
- http://telektrans.hu/editor_up/zutogozezebonelabum.pdfIn PDF document text
- https://www.grandeprairie.org/wp-content/plugins/formcraft/file-upload/server/content/files/1613bd28bb60f7---98746919920.pdfIn PDF document text
- https://dpengineers.info/admin/userfiles/file/xuzasedodulaloxitumek.pdfIn PDF document text
- http://shacklefordlawoffice.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/38504000602.pdfIn PDF document text
- http://neodev.space/wp-content/plugins/formcraft/file-upload/server/content/files/1614161fb26b87---lumarotojipetafevanada.pdfIn PDF document text
- http://ontis.sk/editor_uploads/system/files/5460695424.pdfIn PDF document text
- https://gkscam.com/userfiles/file/bejebiwuxivugag.pdfIn PDF document text
- https://ls-machinery.com/uploadpic/files/202109080628581798.pdfIn PDF document text
- http://www.gdchgs.com/admin/img/files/sinudulawiwamepibab.pdfIn PDF document text
- http://www.saraviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614162c3b5bb6---jemonidozifatodulun.pdfIn PDF document text
- http://ttlh.vn/storage/ckfinder/files/zagotibaw.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_off0000f484.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF484 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010c96.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10C96 | 17524 bytes |
SHA-256: f65b775cf5acbbb71d12639b36f6f1e8b8a39d51d996601c3b71da66981763b8 |
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font_02_sfnt_off000139fa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x139FA | 10896 bytes |
SHA-256: c963050d368836998a616b42f12fcddd8da44be20d3f4f85d63aacf8975a7d5d |
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