MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains a large number of links pointing to various websites, many of which are hosted on compromised WordPress installations. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' indicates a non-clustered link farm on disposable hosting, suggesting an attempt to manipulate search engine results or distribute malicious content. The ML classifier also strongly flagged this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 0.9963
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://wurstfargo.com/wp-content/plugins/super-forms/uploads/php/files/9ee93fd02d51ae6c62df1afae890326e/69275953865.pdf In PDF document text
- https://xn----7sbabak5acz7byau.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/ff98499ebdcbfe6bb8d342ec1c2afc88/nirobobijuge.pdfIn PDF document text
- http://pansophers.com/wp-content/plugins/formcraft/file-upload/server/content/files/16090f5372f94c---karofedujisazusaduvu.pdfIn PDF document text
- https://www.reliancecareuk.com/wp-content/plugins/super-forms/uploads/php/files/edc8dedb9adf400aecec1ee758794999/82219615654.pdfIn PDF document text
- https://www.rath-catering.de/wp-content/plugins/formcraft/file-upload/server/content/files/160c14448a7eb1---65960417581.pdfIn PDF document text
- http://centrons.com/uploaded/file/151522740660c95bda24d7c.pdfIn PDF document text
- http://workprohealth.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f3422d1bcf---32288255126.pdfIn PDF document text
- http://topopentertainment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c746d4444d---33591398618.pdfIn PDF document text
- http://lawcab.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160868641285b8---68596467947.pdfIn PDF document text
- http://www.hj-bouwt.be/wp-content/plugins/formcraft/file-upload/server/content/files/160c4ff258baf2---dipaxesivukaki.pdfIn PDF document text
- https://californiaoptionsrealestate.com/wp-content/plugins/super-forms/uploads/php/files/3639a7cf1b344d858c0d0e2580557014/3678180354.pdfIn PDF document text
- http://mfplus.ba/wp-content/plugins/formcraft/file-upload/server/content/files/160c57efa03589---rivulixekopavija.pdfIn PDF document text
- http://xn--80aaa1acmiejxr6d7fg.xn--p1ai/data/files/47397060038.pdfIn PDF document text
- https://avantkart.com/wp-content/plugins/super-forms/uploads/php/files/hsgv3reopho0dkrg55q7s8gu8b/38586739063.pdfIn PDF document text
- https://myupfield.link/wp-content/plugins/super-forms/uploads/php/files/9ah5gmdgev6ngfbgqep6pm7t0e/xomebabegizudoberadiriwip.pdfIn PDF document text
- https://ecef-groupe.com/wp-content/plugins/super-forms/uploads/php/files/l0udfgncff8efnmecm8e5snha5/43580550334.pdfIn PDF document text
- http://brighterhealthcare.co.uk/wp-content/plugins/super-forms/uploads/php/files/hnf93ai7v1t92tnt58t15kk6tn/wifemavagubafal.pdfIn PDF document text
- http://www.realisthotel.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608228a5bdcb2---6897652872.pdfIn PDF document text
- http://eventcompany.org/clients/e/e3/e30ef11cf4efe639fe6592aa37b9cb94/File/35208308021.pdfIn PDF document text
- https://girl0229960192.com/upload/users/files/momugirorebupipifotu.pdfIn PDF document text
- https://www.mysmilestudios.com/wp-content/plugins/super-forms/uploads/php/files/559431c6875813b54047754cc967fef9/44183221790.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=justin+bieber+andPDF 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_off0001796c.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1796C | 10304 bytes |
SHA-256: 24236de68689f9a9671e1c3848aee17456f3bdc5be9e54c3a21f9dc982b87de8 |
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font_01_sfnt_off000190d3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x190D3 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001a8e5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1A8E5 | 20564 bytes |
SHA-256: d57f05cb4e3c5cfff2243a35e0d376baf1867e2fa0d0540816a34cba141e7cf7 |
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