MALICIOUS
104
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and a large number of external URIs, many of which point to compromised websites or disposable hosting. These links appear to be part of a link farm, likely intended to manipulate search engine results or redirect users to malicious content. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 0.9955
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://crysiq.ru/uplcv?utm_term=manual+tv+philips+led+40+ambilight PDF link annotation
- http://uniradioweb.info/userfiles/files/59289944245.pdfIn PDF document text
- https://www.euroservicemilano.it/wp-content/plugins/formcraft/file-upload/server/content/files/160716ed97e5f2---81921627894.pdfIn PDF document text
- http://ranaghatpchsschool.org/userfiles/file/86873651726.pdfIn PDF document text
- https://www.businesswatchguardingservices.co.uk/wp-content/plugins/super-forms/uploads/php/files/ofshm0ngm6f4bshp1sahg0lg7o/telezitonolasuxeni.pdfIn PDF document text
- http://aksaxena.com/bpms/includes/fckeditor_uploads/userfiles/file/76678984205.pdfIn PDF document text
- http://bazatalty.pl/wp-content/plugins/super-forms/uploads/php/files/56762d46bff73e76154ba8e2af5239cc/60154232186.pdfIn PDF document text
- http://theettiaresmontreal.com/clients/f/f0/f03dfc1790708d0b03c48e9879ef2ea6/File/82244357075.pdfIn PDF document text
- http://yourhealthyanswer.com/ckfinder/userfiles/files/20763747954.pdfIn PDF document text
- http://ski-experience-japan.com/images/blog/file/57218695053.pdfIn PDF document text
- http://onlytech-tunisie.com/userfiles/file/75147106828.pdfIn PDF document text
- http://zionhillfirstbaptistchurch.com/clients/73368/File/65611045956.pdfIn PDF document text
- http://www.northeastmarquees.com/wp-content/plugins/super-forms/uploads/php/files/44b2c8cc554308693ef658fb2899fa1f/5437772292.pdfIn PDF document text
- https://cjsc.se/ckfinder/userfiles/files/suzaturawu.pdfIn PDF document text
- http://tantos.jp/js/upload/files/43009646661.pdfIn PDF document text
- https://joyfool.art/wp-content/plugins/super-forms/uploads/php/files/51a25a55f2daad2b6a3534768e934d8e/vupumipikijovewu.pdfIn PDF document text
- https://pestresolution.pt/site/upload/file/mizesukedagibapidiji.pdfIn PDF document text
- http://dc-3ed4d7413bdb.prshots.de/uploads/userfiles/1629712330/files/fesepevipu.pdfIn PDF document text
- https://www.ideaklinik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/160b291a4af4a4---vibiteze.pdfIn PDF document text
- http://kirsanov-maslo.ru/uploads/27350106832.pdfIn PDF document text
- http://webinside.pl/userfiles/file/godobufegajikurak.pdfIn PDF document text
- https://www.nexidia.it/wp-content/plugins/super-forms/uploads/php/files/ebc7613ed3f20d7802e5061c20c97c08/terujezatom.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_off0001df70.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1DF70 | 22000 bytes |
SHA-256: 82d51297c4568440163e9cf1946fb8f2df8c2cde814bf5d55c93f5e9a591bc83 |
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font_01_sfnt_off00021837.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x21837 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0002304e.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x2304E | 11120 bytes |
SHA-256: 63b1154cdca5f7c350d1f4f9786c526e80e4fb403b8654ea7b765e2b75a2ae08 |
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