MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The ML classifier strongly indicates this PDF is malicious. It contains numerous links to external websites, many hosted on compromised CMS platforms, suggesting a link farm designed to redirect users to malicious content. The document body is heavily obfuscated and unreadable, but the presence of embedded URLs and the heuristic firings point towards a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9981
Heuristics 5
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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://cal.lighting/wp-content/plugins/super-forms/uploads/php/files/93603e560bddcebff388ce7ed272356d/ruxizazinalirowuduwa.pdf In PDF document text
- http://www.bluewhaleline.com/image/upload/File/83942375593.pdfIn PDF document text
- https://www.sahabatkeluargahomecare.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c40f2f596b8---9372897902.pdfIn PDF document text
- http://dpsszczytno.pl/photo/file/97046530876.pdfIn PDF document text
- http://osteriadelcampanile.com/userfiles/files/3421549009.pdfIn PDF document text
- http://constructionone.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160c4a0e941315---5903040974.pdfIn PDF document text
- http://yer-krasnodar.ru/ckfinder/userfiles/files/bizafoditoluluw.pdfIn PDF document text
- https://momsgardenfoods.com/ckfinder/userfiles/files/kedekudab.pdfIn PDF document text
- http://timeyear-v.com/userfiles/file/dimifavetupez.pdfIn PDF document text
- http://fernandopelosini.it/userfiles/files/fekiroposepas.pdfIn PDF document text
- https://www.yoursurveysurveyors.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160a4e83e5f6f0---91926153678.pdfIn PDF document text
- https://laflammerouge.ch/userfiles/files/27802521103.pdfIn PDF document text
- https://blueridgelightingandcontrols.com/wp-content/plugins/super-forms/uploads/php/files/fb438f40f82eb2643c67e618383d3831/6509376574.pdfIn PDF document text
- http://www.auditsi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160f06d5f36b21---nexozowasutigexiwiwit.pdfIn PDF document text
- http://nakatka.com/files/file/sibosovuzefemofutofud.pdfIn PDF document text
- http://119hero.kr/userData/board/file/filezesisojutax.pdfIn PDF document text
- https://cullinanconstruction.com/wp-content/plugins/super-forms/uploads/php/files/iv2b88i89t8rv1mko5e4k4qo9c/56772517962.pdfIn PDF document text
- http://archerelectricsupply.com/userfiles/file/23679181117.pdfIn PDF document text
- http://asirius.su/wp-content/plugins/super-forms/uploads/php/files/563ec78a1939ef723c98505631541878/72853030532.pdfIn PDF document text
- https://timjanen.se/anvandarbilder/53/files/tozizasemiwuro.pdfIn PDF document text
- https://kurtoglumob.com/upload/file/zufogijiramifavuxi.pdfIn PDF document text
- https://seerupit.dk/assens/file/tuzobufaxonafinuduxoxofi.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/GLLx1DTH0VQ/uplcv?utm_term=present+continuous+wh+questions+pdfPDF 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_off0000d055.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD055 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000e86c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE86C | 10844 bytes |
SHA-256: b203b0379defaf129464961d546a848ddffb883eb0d10be5c29dea92bac572ad |
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font_02_sfnt_off00010140.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10140 | 18080 bytes |
SHA-256: 4e6b3c844986285c48e110634fb37975bad5586b144f8df40d4b57e57aa65e67 |
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