MALICIOUS
96
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous embedded URLs, many pointing to compromised websites or disposable hosting, suggesting a link farm or redirection scheme. The ML classifier strongly indicated maliciousness, and the presence of compromised CMS upload links further supports a malicious intent, likely to distribute further malware or phish users. No scripts were extracted, limiting the analysis of direct execution vectors.
Machine Learning
- Nyx PDF Classifier malicious score 0.9833
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://infrive.ru/uplcv?utm_term=how+to+make+internal+storage+to+sd+card PDF link annotation
- https://mehfermobilsaglik.com/userfiles/file/57170179437.pdfIn PDF document text
- http://mertcelikkapi.com/userfiles/file/61917178229.pdfIn PDF document text
- http://libron.pl/fckupload/assets/file/jabumapati.pdfIn PDF document text
- https://hkpefa.org/editor_upload/file/11791851345.pdfIn PDF document text
- http://lamekatus.com/uploads/ckeditor/files/1833374621.pdfIn PDF document text
- https://yesilkoyluleriz.biz/resimler/files/rivemabiri.pdfIn PDF document text
- https://kurashi-kyoiku.com/cms/dat/upimg/file/ganoxuvelegetijuvalo.pdfIn PDF document text
- http://fxlcd.com/upload/file/37256154841.pdfIn PDF document text
- https://nhaban24h.com.vn/wp-content/plugins/super-forms/uploads/php/files/a06iei04fh2sc02lohd9liq1hu/xosawetadil.pdfIn PDF document text
- https://rmp-traueranzeigen.de/cms/files/95494932944.pdfIn PDF document text
- http://www.saraviation.com/wp-content/plugins/formcraft/file-upload/server/content/files/16144dbc02240f---kofigov.pdfIn PDF document text
- http://morakothotel.com/file_media/file_image/file/polimaborotewoxam.pdfIn PDF document text
- https://megashina24.ru/files/files/dokozuzenup.pdfIn PDF document text
- http://nikolalepojevic5.com/multimedia/file/97223664755.pdfIn PDF document text
- http://studiotecnicomartani.eu/userfiles/files/86851233379.pdfIn PDF document text
- http://www.gulbaharsigorta.com/contentData/file/27115165095.pdfIn PDF document text
- https://markapin.com/calisma2/files/uploads/31112886357.pdfIn PDF document text
- http://cageart.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16140b3305135e---49664333480.pdfIn PDF document text
- http://mmsmarin.com/imgimage/file/mofavaxo.pdfIn PDF document text
- https://www.arc-welding.co.uk/wp-content/plugins/super-forms/uploads/php/files/ej7ihdu2gt81p30gr8330g9gcd/naligujir.pdfIn PDF document text
- http://www.sloepverhuur-debiesbosch.nl/upload/files/dewitiwixumikopiduluda.pdfIn PDF document text
- http://scoutpate.com/userfiles/file/maginoborogaxiwixerobajap.pdfIn PDF document text
- http://z-him.ru/userfiles/file/48087517205.pdfIn PDF document text
- http://hzzxtl.com/UploadFile/file/20210912153826735.pdfIn PDF document text
- http://sireny.net/share/files/dinegivija.pdfIn PDF document text
- http://fotografiafrancescosomma.com/userfiles/files/lozikikat.pdfIn PDF document text
- http://lsphc.com/userfiles/file///limuvagotaxokopej.pdfIn PDF document text
- http://xn--80aafmoni2biho.xn--p1ai/admin/ckfinder/userfiles/files/57046174962.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_off0000d62d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD62D | 16920 bytes |
SHA-256: 90045ece1850f40714fd80c01dd8213e0d7260eee896284a54ceb492bc496f0c |
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font_01_sfnt_off000101e2.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x101E2 | 10884 bytes |
SHA-256: defd72436e08a7d6d95e0f4169e96f36c5d57b2cda473ada28e832243382b56d |
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font_02_sfnt_off00011ad1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11AD1 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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