MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a link farm pointing to multiple compromised WordPress sites, which in turn host malicious PDF files. The ML classifier strongly indicated maliciousness, and the structure suggests a tactic to distribute further malware. No scripts were extracted, but the presence of numerous links to potentially malicious PDFs indicates a distribution or redirection scheme.
Machine Learning
- Nyx PDF Classifier malicious score 0.9997
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://www.sempresaude.net/wp-content/plugins/formcraft/file-upload/server/content/files/160afe7fdcbd8c---lofopoxinuvogixitowomone.pdf
- https://sasalidayanisma.org/uploads/file/tafedu.pdf
- http://fontanarosaserigrafia.it/userfiles/file/xideperuvasejodomibu.pdf
- http://triumphtoday.org/wp-content/plugins/formcraft/file-upload/server/content/files/16085259b9482c---50093034498.pdf
- https://rmissio.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16076e4b7ae209---79613063468.pdf
- https://spencershaulageltd.co.uk/wp-content/plugins/super-forms/uploads/php/files/70518123985d9f2837f5fb599166328d/1509202771.pdf
- http://www.scmphotography.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608e38d0441ab---63302842070.pdf
- https://c4ir.ae/wp-content/plugins/super-forms/uploads/php/files/10bi0of5i57mt1hmto6d6qrlr6/sewexores.pdf
- https://akita-inu.lv/www/files/files/bopomenofidisesupewuk.pdf
- http://yesilderecine.com/admin/editor_resim/file/2416785827.pdf
- http://www.associatedomains.com/wp-content/plugins/formcraft/file-upload/server/content/files/16085029ce9315---54332224632.pdf
- http://paymentsbusiness.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16099332c8a6ed---nezimedolu.pdf
- https://www.lokalesichtbarkeit.de/wp-content/plugins/super-forms/uploads/php/files/h63ml5qmbf7gh9vh3c3ai0khp2/61451508868.pdf
- http://www.hypnotiseur.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac6a29c5a20---gigunirowadukofijiro.pdf
- https://www.elektrobetrieb-scholz.de/wp-content/plugins/formcraft/file-upload/server/content/files/160845686027c2---59611703942.pdf
- http://www.191seo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f7cc474bfa---geditutomuterofiwab.pdf
- https://mangmalungtea.com/userfiles/file/nesinesaboxezujimul.pdf
- https://drahmetbostanci.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609ec1b626705---53457192111.pdf
- https://europeancustomtailor.com/wp-content/plugins/super-forms/uploads/php/files/a7d60c6028a3f8221b846fc895b20f6b/40841507237.pdf
- http://geology.ie/wp-content/plugins/formcraft/file-upload/server/content/files/1608f17d049eff---kemuxavuvabobatenepo.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=how+to+make+a+face+mask+steps
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000d7b7.bin305a37bf3a18bad5e23c9845d26296ba54bcc8ac4bd9ba4132641c3bb17d2f4d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD7B7 | 5152 bytes |
font_01_sfnt_off0000e944.bin71ce6f625eb625292a0937debc0e27ce9dafd67e51fc1961b33bcea63b8faaec |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE944 | 10820 bytes |
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