MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a link farm pointing to multiple compromised CMS upload directories, indicating a tactic to obscure the true destination or leverage compromised infrastructure. The ML classifier strongly flagged this PDF as malicious, supporting its role in a malicious campaign. No scripts were extracted, and the document body was unreadable binary data, limiting further analysis of specific payloads.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://www.andimoda.com/wp-content/plugins/super-forms/uploads/php/files/924c50d5285a177d8b83b6007d20661e/poguzovaguvuvorekumoj.pdf In PDF document text
- http://bjaimama.com/data/upload/2021/08/file/202108120821005226.pdfIn PDF document text
- https://sailstudy.in/ckfinder/userfiles/files/90478629374.pdfIn PDF document text
- http://sentezetutmerkezi.com/upload/ckfinder/files/wowutikubovivununi.pdfIn PDF document text
- https://eliteswimmingpoolsinc.com/wp-content/plugins/super-forms/uploads/php/files/32huc6fhaqh46rsug5fu1nad04/62343201097.pdfIn PDF document text
- http://bridgesonthepark.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609dbf41d62e1---sovuterafekokukadosinanup.pdfIn PDF document text
- https://cradlegold.com/wp-content/plugins/super-forms/uploads/php/files/o7lc9241nnc26hkggg0upfii5a/81995502352.pdfIn PDF document text
- http://voszveszprem.hu/_user/file/15888738228.pdfIn PDF document text
- http://choinka4x4.org/cms/files/file/52296450902.pdfIn PDF document text
- http://livelyway.com/ckfinder/userfiles/files/41403468577.pdfIn PDF document text
- http://theopenhouseclub.com/wp-content/plugins/super-forms/uploads/php/files/0446382d56d41d955b371ab0a6ca8e4c/97368332904.pdfIn PDF document text
- https://bestmiamiturf.com/wp-content/plugins/super-forms/uploads/php/files/bbeaa3662d33b7ca26f2dc2b3e0ddf45/fajomafogudepol.pdfIn PDF document text
- http://www.kzhep.in.ua/wp-content/plugins/super-forms/uploads/php/files/eup58duc2re9vq00td6u4t7c75/rimuruwi.pdfIn PDF document text
- http://www.kidnuri.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610f7480e393f---zikenimukabazekuvebilati.pdfIn PDF document text
- https://www.natursany.com//ckfinder/userfiles/files/58322252150.pdfIn PDF document text
- http://www.heatandgas.com//EditorImages/file/mesisiz.pdfIn PDF document text
- http://kap-group.com/ckfinder/userfiles/files/95268520735.pdfIn PDF document text
- https://aawyx.com/sites/default/imageuser/file/24860590381.pdfIn PDF document text
- http://www.itbaloch.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b59184a2294---75706194621.pdfIn PDF document text
- http://schoonhovensvrouwenkoor.nl/ckfinder/userfiles/files/waremili.pdfIn PDF document text
- http://adance0112.com/upfile/editor/file/nifozepovetiposagamok.pdfIn PDF document text
- http://rdasesores.gestconcursal.com/editor/ckfinder/userfiles/files/39417194742.pdfIn PDF document text
- http://studioarchterreni.it/userfiles/files/50994825603.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/S30rS-6n6vg/uplcv?utm_term=chemistry+lab+equipment+imagesPDF 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_off0000fd4b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFD4B | 11108 bytes |
SHA-256: 32d966a83031394fa200ac9c7f09bb2e780c53aa68fb84b757321f8b59534463 |
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font_01_sfnt_off00011682.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11682 | 17780 bytes |
SHA-256: e6cb8643b1c32690036f682fa8800ad68f3e5f807dfd15f73fe8c03318a029d8 |
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font_02_sfnt_off00014512.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x14512 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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