MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document contains a large number of external URIs, many of which point to compromised WordPress sites or disposable hosting. The ML classifier strongly indicated maliciousness, and the structure suggests a link farm designed to distribute malicious content or phish users. No scripts were extracted, but the extensive use of external links is the primary indicator of malicious intent.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
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://chcial.ru/uplcv?utm_term=sw+erdnase+expert+at+the+card+table+pdf PDF link annotation
- https://unitedcardsolutions.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607a0bf5573dd---94142699970.pdfIn PDF document text
- https://mclarenquartz.in/ci/userfiles/files/53506066541.pdfIn PDF document text
- http://donleroy.net/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/95510828156.pdfIn PDF document text
- http://foto-klub.dk/userfiles/file/zonerituwona.pdfIn PDF document text
- https://elicopter-de-inchiriat.ro/wp-content/plugins/formcraft/file-upload/server/content/files/160c5082e31ce3---49471871942.pdfIn PDF document text
- http://worldprint.su/userfiles/file/18033399335.pdfIn PDF document text
- http://accessiblevehicleservices.com/userfiles/file/45057388402.pdfIn PDF document text
- https://drainscovers.com/wp-content/plugins/super-forms/uploads/php/files/0ad886ad2d7feafd8f94828edb561168/90061455151.pdfIn PDF document text
- http://alda.pl/ckfinder/userfiles/files/pujowumumori.pdfIn PDF document text
- http://www.peretprod.ro/content-images/file/zufefugexizu.pdfIn PDF document text
- http://dobre-jaja.com/Upload/file/rebenofipijosofufaxezunoz.pdfIn PDF document text
- http://bochosushi.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a27c9093130---86069249831.pdfIn PDF document text
- https://formapolis.it/wp-content/plugins/super-forms/uploads/php/files/b058714a886077d7ac6d7a53164558ab/11611073351.pdfIn PDF document text
- https://curvy.tw/upload/files/buzufuzisovamijibixaweg.pdfIn PDF document text
- https://invest.pl/userfiles/file/rokolewixabonunimexijid.pdfIn PDF document text
- http://vinacafe-dalat.com/Images_upload/files/zegepabuduj.pdfIn PDF document text
- http://vetcarefoundation.org/userfiles/file/nemumeze.pdfIn PDF document text
- https://deedpoll.sg/wp-content/plugins/super-forms/uploads/php/files/c9879687a62447d2b14666d0338fc202/luwikesomunulelunaxafuwe.pdfIn PDF document text
- http://dolphinkorea.com/files/files/vemuwamuwe.pdfIn PDF document text
- https://creativesilhouettes.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160770de39fef0---kerek.pdfIn PDF document text
- http://suportti.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608032be82f9a---nuvuwedamopaxuto.pdfIn PDF document text
- https://www.alphaveneers.com/wp-content/plugins/super-forms/uploads/php/files/a5a309c5d2f79a239729f281569e9d40/miriwimasujakilabebutu.pdfIn PDF document text
- https://www.goldenplanet.dk/wp-content/plugins/formcraft/file-upload/server/content/files/16091895eac57b---38250668093.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_off0000be82.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBE82 | 16252 bytes |
SHA-256: a9c7b520cd47e5fdbbfd355788a49ef80a85ef2d34447baa0866a08d57f3e7db |
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font_01_sfnt_off0000e810.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE810 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010027.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10027 | 10908 bytes |
SHA-256: b0b3066ded55156f41ca57860a5312793dfc0c0b7a07a16d15b98ef72da1ee2d |
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