MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous links to external websites, many hosted on compromised CMS platforms or disposable domains, indicating a link farm designed to redirect users. The ML classifier strongly flagged this PDF as malicious, suggesting it's part of a larger malicious infrastructure. While no scripts were extracted, the heuristic firings and extensive URL list point to a malicious document likely used for SEO spam or to distribute further malware.
Machine Learning
- Nyx PDF Classifier malicious score 0.9985
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://inwebjor.ru/uplcv?utm_term=monster+hunter+portable+3rd+ppsspp+multiplayer PDF link annotation
- http://poketomecam.com/uploads/files/906615137.pdfIn PDF document text
- http://321eastern-thailand.com/userfiles/files/vigovisofovatajoje.pdfIn PDF document text
- https://intelean.com/wp-content/plugins/formcraft/file-upload/server/content/files/161419da5a4c64---jibezajapudiwux.pdfIn PDF document text
- http://paitoonbox.com/userfiles/files/57490970808.pdfIn PDF document text
- http://dorisemitchell.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/95776884287.pdfIn PDF document text
- https://safewatersolutions.in/ckfinder/userfiles/files/xerijugipizoxum.pdfIn PDF document text
- http://pierrevillers.fr/mairie_files/file/49073673377.pdfIn PDF document text
- http://franzoesischebulldoggen.eu/userfiles/file/91540583633.pdfIn PDF document text
- https://mikepromedia.com/wp-content/plugins/super-forms/uploads/php/files/3a94e0d497d689f6bdfc7643ee859c31/27993616947.pdfIn PDF document text
- https://lalicorne-hotel.com/userfiles/file/12865661163.pdfIn PDF document text
- http://wintec-samu.hu/uploads/files/fasujisesi.pdfIn PDF document text
- https://seroinstitute.com/wp-content/plugins/super-forms/uploads/php/files/5e03f39a07f69e5c6940b9c026ffb3d9/70956647105.pdfIn PDF document text
- https://hunde-katzen.at/soubory/kubaje.pdfIn PDF document text
- https://bursac.net/userfiles/file/logejim.pdfIn PDF document text
- http://hongpakthai.com/ckfinder/userfiles/files/85964368899.pdfIn PDF document text
- http://powercleanperu.com/cms_powerclean_2015/sgi_userfiles/userfiles/files/beroteruvajenizokobip.pdfIn PDF document text
- http://joshuadacosta.com/wp-content/plugins/formcraft/file-upload/server/content/files/16133538223cbe---feteminukuwuzinolagadul.pdfIn PDF document text
- http://panda-es.tokyo/yamituki-n/uploads/files/pidukenopupojigofe.pdfIn PDF document text
- https://lakecountyoralsurgery.com/wp-content/plugins/formcraft/file-upload/server/content/files/16136922861087---45026613928.pdfIn PDF document text
- http://mudrkanuch.sk/editor_uploads/system/files/nodovubebomanabibabokabi.pdfIn PDF document text
- https://kozhikodedeaf.org/admin/my_files/file/bududativazokopipapizo.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_off0000d6f4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD6F4 | 17616 bytes |
SHA-256: dd200e41f7a7aeaed20deecd41b3799a671cc7acd6ba6e0b2c1b5933195faa6c |
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font_01_sfnt_off000104ef.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x104EF | 11176 bytes |
SHA-256: dca80371166fd420ad52b67ecd0925e5730251e7db4ac6bbf5de7bd44939a262 |
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font_02_sfnt_off00011eb3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11EB3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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