MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF file contains a large number of external URIs, many of which point to compromised WordPress sites. The ML classifier strongly indicates maliciousness, and the structure suggests a link farm designed to manipulate search engine results or redirect users to potentially harmful content. No scripts were extracted, but the presence of numerous external links is a strong indicator of malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9972
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://smidgel.ru/uplcv?utm_term=autodesk+inventor+sheet+metal+tutorial+pdf PDF link annotation
- http://www.misshandicap.ch/wp-content/plugins/formcraft/file-upload/server/content/files/16077fd04ee115---lidetakawosifa.pdfIn PDF document text
- https://trucraftsmanship.com/wp-content/plugins/formcraft/file-upload/server/content/files/161250ff8156fc---1236114725.pdfIn PDF document text
- http://cargo3030.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160ec9afbe2dd7---2325958549.pdfIn PDF document text
- http://kimandyoo.com/userfiles/file/54545935671.pdfIn PDF document text
- https://israelonthehouse.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a24d44990dc---gekijumikubefivarapofupez.pdfIn PDF document text
- https://www.hotelrestaurantmacarena.fr/ckfinder/userfiles/files/kebakizip.pdfIn PDF document text
- http://orhs89reunion.com/clients/77823/File/8849663725.pdfIn PDF document text
- https://thejinglelab.com/wp-content/plugins/super-forms/uploads/php/files/jskq1dmc3t0414h4kro1235187/dotiponi.pdfIn PDF document text
- http://buydecor.ru/uploads/files/53976484662.pdfIn PDF document text
- http://sevenseahotel.com/uploads/images/files/64225705111.pdfIn PDF document text
- https://nationalcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/16086306e1d2e9---30184122478.pdfIn PDF document text
- http://expertsystemgroup.com/file_media/file_image/file/tavimanuxuves.pdfIn PDF document text
- https://www.web2business.pt/wp-content/plugins/formcraft/file-upload/server/content/files/160c25095778df---18126721583.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a9863715be8---fobajasojadasiveguwowifu.pdfIn PDF document text
- https://bruceleevideos.org/images/file/74948847754.pdfIn PDF document text
- https://rubyyadav.com/nbloom/fckuploads/file/sukufow.pdfIn PDF document text
- https://cashmeredreams.com/wp-content/plugins/super-forms/uploads/php/files/32a4653197072f2c9e16d5ec8ba814e3/wanujo.pdfIn PDF document text
- http://becro-plast.hr/wp-content/plugins/formcraft/file-upload/server/content/files/160b331b9b56fe---73472758540.pdfIn PDF document text
- https://dalycity.com/wysiwygfiles/file/nuwipotegipamepubunu.pdfIn PDF document text
- https://inlandautorepairmurrietaca.com/wp-content/plugins/super-forms/uploads/php/files/79516cb4c47649932917c33edfb8b30c/88977218429.pdfIn PDF document text
- https://hsegroup.ru/wp-content/plugins/super-forms/uploads/php/files/ipmnj73edprjdd7186e01p4h63/29029129978.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_off0000df28.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDF28 | 11004 bytes |
SHA-256: 8ecfdb875519f61b6ff4b3a4a91d794e3b7d1f21f3b0ee2791ef8e08bf1d621b |
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font_01_sfnt_off0000f889.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF889 | 19320 bytes |
SHA-256: 8c9bd391efc821b071fd6daf33e0a81cc7a7f1709a3179bcd25032d71f527bfc |
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font_02_sfnt_off00012aaf.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12AAF | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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