MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF file contains numerous embedded URLs, many of which point to compromised CMS upload directories. These URLs likely serve as a link farm to redirect users to malicious content hosted on other sites. The ML classifier strongly indicated maliciousness, supporting the assessment of a malicious link farm attack pattern.
Machine Learning
- Nyx PDF Classifier malicious score 0.9991
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://connect.allianceflooring.net/wp-content/plugins/super-forms/uploads/php/files/266897e94f10471c8f5f2af06fc65303/32409166699.pdf In PDF document text
- https://jamiatulbanat.in/wp-content/plugins/formcraft/file-upload/server/content/files/1607b1f9144af0---xonaf.pdfIn PDF document text
- http://www.lauricedale.co.za/wp-content/plugins/formcraft/file-upload/server/content/files/1607000046a137---gigepisiw.pdfIn PDF document text
- http://growlink.biz/userfiles/file/wokovepi.pdfIn PDF document text
- http://www.mearesandassociatesllc.com/siteuploads/editorimg/file/43771224729.pdfIn PDF document text
- http://www.kammerpop.de/files/file/15454232639.pdfIn PDF document text
- http://www.iycadana.org/wp-content/plugins/super-forms/uploads/php/files/stih4e5a03namoclvomu3iej36/lidolinoxazarulemaj.pdfIn PDF document text
- https://discoverapartmentsforrent.com/wp-content/plugins/super-forms/uploads/php/files/433cefe6cdb94a652f2fd96a2a3742bb/kupegudureragemuxixap.pdfIn PDF document text
- http://argra.rs/wp-content/plugins/formcraft/file-upload/server/content/files/1607baddf8ac76---ritovosilizagusodifufabos.pdfIn PDF document text
- https://www.sudburyhighspeedinternet.ca/wp-content/plugins/super-forms/uploads/php/files/a62beab9862c9710573930c47f32f69a/13935323928.pdfIn PDF document text
- https://futuresbuilder.net/dayafter/uploadimages/newsimages/file/gegajafoju.pdfIn PDF document text
- https://hsegroup.ru/wp-content/plugins/super-forms/uploads/php/files/siia8mu5oc9rb8n1uu89dj8tn1/93305995095.pdfIn PDF document text
- https://fortlauderdale-carservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075ae2525e65---fofezixanozexubogedikego.pdfIn PDF document text
- http://domholidays.com/userfiles/file/93412817408.pdfIn PDF document text
- https://spazmedia.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608e946ccf3b9---jabima.pdfIn PDF document text
- https://ecobox.eng.br/wp-content/plugins/super-forms/uploads/php/files/724bcibibaoa7jdbihvsahefrh/vetimotetig.pdfIn PDF document text
- https://immo-cjeanpaul.lu/userfiles/files/valiromuwejegutotuno.pdfIn PDF document text
- http://mobydick-band.de/fckdata/file/15110767612.pdfIn PDF document text
- https://allmassage.net/upload/file/20210511231537.pdfIn PDF document text
- https://www.lang-mayer.de/wp-content/plugins/formcraft/file-upload/server/content/files/160afc8b18456f---jasizasonugosamuwezubewa.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/YTWXjIUwRh0/uplcv?utm_term=by+way+of+reminderPDF 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_off0000fb22.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB22 | 16212 bytes |
SHA-256: 2129037054e5bbe87be4751b71463704baf43a3f12232b892865b6e78f8acf78 |
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font_01_sfnt_off000124c6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x124C6 | 10456 bytes |
SHA-256: de6181457b33a2c7b7c9cdb8b05f4d5d8b2fb0d5d17c1c614803a11cd753a2f2 |
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font_02_sfnt_off00013c8d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13C8D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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