MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The ML classifier strongly indicated maliciousness, and the PDF contains a link farm pointing to numerous domains, many of which appear to be compromised or disposable. The heuristic 'PDF_SEO_DISPOSABLE_LINK_FARM' and 'PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM' confirm this behavior. The presence of external URIs suggests an attempt to redirect the user to potentially harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9977
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://joyearland.com/ckfinder/userfiles/files/34209804156.pdf In PDF document text
- https://www.yoursurveysurveyors.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160a451a34ea03---gigolavijagom.pdfIn PDF document text
- http://sehs67.com/clients/e/e0/e078d4d0076166a7bb489ca3b3a583ab/File/34646141451.pdfIn PDF document text
- http://www.gabrielamaciel.net/images/content/file/86166896812.pdfIn PDF document text
- http://adance0112.com/upfile/editor/file/dinobulowadi.pdfIn PDF document text
- https://jetzterstrecht.hamburg/wp-content/plugins/super-forms/uploads/php/files/3oki6k05dbjp9pgl803q6025e1/defelezil.pdfIn PDF document text
- https://branchennachweis.eu/userfiles/file/sagadewabir.pdfIn PDF document text
- http://etcad.net/np/upfile/file/gafonegemonopulat.pdfIn PDF document text
- http://jpind.pl/userfiles/file/mekopevulilejimogovi.pdfIn PDF document text
- https://ccichn.vn/data/upload/file/7245382223.pdfIn PDF document text
- http://itaindustrial.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1606d4102805d3---pumaxuduv.pdfIn PDF document text
- https://worldkelo.com/wp-content/plugins/super-forms/uploads/php/files/bb0f403c6f0d9b9824dd7084b41601bd/jozidojolevonawa.pdfIn PDF document text
- https://fibaquitaine.fr/cebatrama/userfiles/files/bofogajoritatiwes.pdfIn PDF document text
- http://anhuishangbiao.com/upload_fck/file/2021-8-4/20210804010248219008.pdfIn PDF document text
- https://www.pferde-fuer-unsere-kinder.de/wp-content/plugins/formcraft/file-upload/server/content/files/1608dd9d025fa6---ladefan.pdfIn PDF document text
- https://assurancemauricie.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f94a456e54---4438887175.pdfIn PDF document text
- http://veronicanealhome.com/wp-content/plugins/formcraft/file-upload/server/content/files/2/1609a31bb18a11---jalivowob.pdfIn PDF document text
- https://petala.gr/userfiles/file/40972360492.pdfIn PDF document text
- http://cancercareresearch.com/userfiles/file/jinameza.pdfIn PDF document text
- http://www.holderit.com/wp-content/plugins/formcraft/file-upload/server/content/files/16087b6bd3c8a5---sekupamikut.pdfIn PDF document text
- http://projectbudapest.hu/wp-content/plugins/formcraft/file-upload/server/content/files/160a1430bc8c16---9454665297.pdfIn PDF document text
- http://architettogherardi.eu/userfiles/files/datovofemanonojudofo.pdfIn PDF document text
- https://alohasafaris.com/files/namalefifuwugezebediz.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=carpal+tunnel+exercises+spanish+pdfPDF 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_off0000e346.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE346 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000fb5d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFB5D | 10832 bytes |
SHA-256: bcf76c107f585f8bc65b04064cecd15074b796f3c01c193dcc3536f15fb59c79 |
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font_02_sfnt_off00011448.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11448 | 16856 bytes |
SHA-256: 2ba0d209d09d22d14f285697810f6c3d031269ba5b3332fa87adc2799b46a84a |
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