MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file contains a large number of embedded URLs, many of which point to compromised CMS uploads and disposable hosting. These URLs are likely part of a link farm designed to redirect users to malicious content or phishing sites. The ML classifier also strongly indicated maliciousness.
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 https://smidgel.ru/uplcv?utm_term=gross+primary+production+definition+biology PDF link annotation
- http://www.ddd-iasi.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1608a92092aa81---gotanonaxerobirexan.pdfIn PDF document text
- http://gfhs1978reunion.com/clients/56625/File/xuzubizerixedipef.pdfIn PDF document text
- http://brilspa.ro/userfiles/file///wiwugud.pdfIn PDF document text
- http://windcampus.com/wp-content/plugins/formcraft/file-upload/server/content/files/160cd6a1d55461---sudamibuxalawexixidedaru.pdfIn PDF document text
- https://specialbrands.gr/wp-content/plugins/super-forms/uploads/php/files/5d47fa5138066a55be34d13c72ef656c/99381537909.pdfIn PDF document text
- https://cruiseship.cruises/wp-content/plugins/super-forms/uploads/php/files/obv709k3uo5gvc89mtlofvhcds/98565093463.pdfIn PDF document text
- https://theemperorsoldclothes.co.uk/wp-content/plugins/super-forms/uploads/php/files/hp74h1g0oq5p8ckmgos6p5dqdp/vukagizirogavetowidixi.pdfIn PDF document text
- http://onlineticketreview.com/images/file/xosagofuwatiwita.pdfIn PDF document text
- https://condominiovillage.com/userfiles/file/88535062725.pdfIn PDF document text
- http://flirtproducties.nl/ckfinder/userfiles/files/pokivakejelumudexegu.pdfIn PDF document text
- http://computer-rudolstadt.de/upload/file/titopejepilerexinu.pdfIn PDF document text
- https://www.hotwaterfactory.com.au/wp-content/plugins/super-forms/uploads/php/files/92fda272b574991ea838ee4b77b4ba79/bedagomorenodofe.pdfIn PDF document text
- https://xlux.vn/wp-content/plugins/super-forms/uploads/php/files/eik2ig708fcnnb89dds4ovc3ua/28313049725.pdfIn PDF document text
- http://cbelmira.com/wp-content/plugins/super-forms/uploads/php/files/o9li0cct7hal6p6b40s1uuvvq3/pivegerupebika.pdfIn PDF document text
- https://www.heainc.com/wp-content/plugins/formcraft/file-upload/server/content/files/160babbba1f5d0---sazalazimojezamu.pdfIn PDF document text
- http://www.kreasoft.mx/wp-content/plugins/formcraft/file-upload/server/content/files/160c9aa8c4f047---tizuteju.pdfIn PDF document text
- http://www.chicagoalphas.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608fa17bb2a0c---rugopesenonufudixogig.pdfIn PDF document text
- http://learnazia.com/fck/imagesfile/kitudasudivepus.pdfIn PDF document text
- http://www.kidnuri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c8aaef7457c---5161827660.pdfIn PDF document text
- http://fashioncenterpoint.com/wp-content/plugins/super-forms/uploads/php/files/ddc59aab072604edd288db801854ad76/61009575552.pdfIn PDF document text
- http://nd-58.ru/wp-content/plugins/super-forms/uploads/php/files/0878519548472ec9ab8bced12bf215ab/waderanajawisetejunovan.pdfIn PDF document text
- https://www.pharmaright.ca/wp-content/plugins/super-forms/uploads/php/files/ska6t8v3nab1mqau24iphhtour/jufixozesonuwetigakasemi.pdfIn PDF document text
- http://www.molinoag.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a0834c594b---toxofuzukuvirupofo.pdfIn PDF document text
- https://www.rath-catering.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606cbf3ea6831---7017121574.pdfIn PDF document text
- 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_off0000eb65.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEB65 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off00010377.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10377 | 17708 bytes |
SHA-256: 72c6fd6892c4314ea27f8e10f1a0f51b94d9fecbc20a96903aec97bfe53dd38e |
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font_02_sfnt_off0001324a.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1324A | 11356 bytes |
SHA-256: a523b309560f8802ab8e859b6284cb40974d2090acd89ff367b83107b5f40958 |
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