MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The ML classifier strongly indicated maliciousness, supported by heuristics identifying the PDF as a link farm pointing to compromised CMS upload storage. These links likely serve as a lure to download further malicious content or redirect to phishing sites. No scripts were extracted, limiting the analysis of direct execution vectors.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
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 http://grupogmec.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bdce3f6cdfc---33977693841.pdf In PDF document text
- http://kasystemofkarate.com/clients/861259/File/14548152172.pdfIn PDF document text
- http://iphonedown.com/ckfinder/userfiles/files/24766616531.pdfIn PDF document text
- https://camile.vn/wp-content/plugins/super-forms/uploads/php/files/g2j9c9t18r8m8jt4cg5sjg37e4/31239220819.pdfIn PDF document text
- http://josephfellerlaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/79137386949.pdfIn PDF document text
- http://progettogeometra.it/userfiles/files/88347311223.pdfIn PDF document text
- https://baobihungphu.com/media/ftp/file/borogenagawopifunamusaz.pdfIn PDF document text
- http://arqing.es/ckfinder/userfiles/files/27392388900.pdfIn PDF document text
- https://www.accidentinjurylascruces.com/wp-content/plugins/super-forms/uploads/php/files/qs0h4bsknfocumt5s57lboi8a2/33539352853.pdfIn PDF document text
- http://alacarte-design.de/userfiles/file/jovabupon.pdfIn PDF document text
- https://prosegik.com/wp-content/plugins/super-forms/uploads/php/files/843d7adcb2c8e39e3f2f11d996dfabb6/20512703133.pdfIn PDF document text
- http://alliance-ltd.com/userfiles/83568420821.pdfIn PDF document text
- http://dulichgiahy.com/upload/file/96446414724.pdfIn PDF document text
- http://stroynerud-sm.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160b0d4d37db6a---9894050965.pdfIn PDF document text
- http://clair-environnement.eu/catalogue_dynamique/file/96568779227.pdfIn PDF document text
- http://esipro.fr/userfiles/file/zexepilitumis.pdfIn PDF document text
- http://geodeslaboratori.eu/userfiles/files/warov.pdfIn PDF document text
- http://dom-nenilovo.ru/wp-content/plugins/super-forms/uploads/php/files/ae8bae7aab1483a96e4fabe2905ac6c7/wujegofib.pdfIn PDF document text
- https://uaqbakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b029d0b7ff---vodakile.pdfIn PDF document text
- http://clinicacomciencia.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a6be417d91c---33790312860.pdfIn PDF document text
- http://www.colegiometa.net/home/wp-content/plugins/formcraft/file-upload/server/content/files/16071741338a34---34888992740.pdfIn PDF document text
- http://munsusa.org/userfiles/file/20210610004923.pdfIn PDF document text
- https://www.euroservicemilano.it/wp-content/plugins/formcraft/file-upload/server/content/files/16080291553f2c---36580582027.pdfIn PDF document text
- https://him-home.ru/wp-content/plugins/super-forms/uploads/php/files/54d7ab2967d5b33db205c482c145fd5a/66934335621.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/FevRqgeaUVY/uplcv?utm_term=bloody+nose+every+morningPDF 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_off0000f5be.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5BE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010dd5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10DD5 | 10564 bytes |
SHA-256: f8f6ccb9c435b2f8c47f103f798fc95db24805468459a4c8f2bb18bfc5c9f0b7 |
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font_02_sfnt_off000125b1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x125B1 | 17132 bytes |
SHA-256: c9601d13e2a042c34a02649c8b7162cc87889ce3dac969eb774195b9e8dc58bf |
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