MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection and an ML classifier. It contains numerous embedded URLs that point to compromised CMS upload storage and disposable hosting, suggesting a link farm designed to redirect users to malicious sites. While no scripts were explicitly extracted, the nature of the embedded URLs and the PDF structure strongly indicate a phishing or malware distribution attempt.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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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://outsourcedbackoffice.co.uk/wp-content/plugins/super-forms/uploads/php/files/dac17a01395ddc1f4b277d5903308d9b/56256095177.pdf In PDF document text
- http://pc75.net/upfiles/file/1623165204.pdfIn PDF document text
- http://bacvietexpress.com/upload/userfiles/files/16277734652.pdfIn PDF document text
- http://claudiodauelsberg.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a575788780f---15177465083.pdfIn PDF document text
- https://hondamienbac.vn/userfiles/file/43715044641.pdfIn PDF document text
- https://aspirans.com/files/file/nisunemokuwuwugo.pdfIn PDF document text
- http://luckyassessoria.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160910583df289---51815399193.pdfIn PDF document text
- http://www.nanodrywash.com/wp-content/plugins/formcraft/file-upload/server/content/files/1609226318e7cf---zixab.pdfIn PDF document text
- https://pablohernandes.com/wp-content/plugins/super-forms/uploads/php/files/7fad47af8e2326dd23905a3f9e098ab3/3097338260.pdfIn PDF document text
- http://fotografiafrancescosomma.com/userfiles/files/welijijatu.pdfIn PDF document text
- https://too.kg/wp-content/plugins/super-forms/uploads/php/files/13d4430cbf6fe10597f87ae7a4a5f6b8/45989006756.pdfIn PDF document text
- http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bd4c8656823---89615731614.pdfIn PDF document text
- https://fedico.ca/upload/editor/file/40907633716.pdfIn PDF document text
- http://atthaya.com/file_media/file_image/file/wajesumikurunujixal.pdfIn PDF document text
- https://binarbaidtrading.com/public_html/userfiles/file/93858995593.pdfIn PDF document text
- http://eduomania.com/wp-content/plugins/formcraft/file-upload/server/content/files/160881c7a4f465---fomijidarel.pdfIn PDF document text
- https://akemi.ro/hirek/file/lirademadeg.pdfIn PDF document text
- http://clarksville.net/wysiwygfiles/file/44907694448.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=family+headquarters+barber+shopPDF 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_off0000bbdc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBBDC | 11028 bytes |
SHA-256: e5c85a2ad6d75a3c1974eb53434d2b9347d0111062933fbf7427f3966a26e3ae |
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font_01_sfnt_off0000d505.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD505 | 16764 bytes |
SHA-256: eb00f13f42b11bd7c9593952b35d613b519249d9580bcad14f5fa99efe316e0a |
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font_02_sfnt_off0001007b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1007B | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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