MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains numerous external links, many pointing to other PDF files on distinct domains, flagged as a link farm on disposable hosting. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or a scam. The presence of external URIs and the PDF_RANDOM_URL_LINK heuristic suggest the document is designed to redirect users to malicious content.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
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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://domingo.hu/ckfinder/userfiles/files/31756059458.pdf In PDF document text
- https://holyfamilyhospitals.com/ckfinder/userfiles/files/90641421503.pdfIn PDF document text
- http://tprcindia.com/ckeditor/ckfinder/userfiles/files/71257748779.pdfIn PDF document text
- https://drakbera.com/ckeditor/ckfinder/userfiles/files/taxugumumukixaxet.pdfIn PDF document text
- http://werkkledingverkoop.nl/images/docman/files/gozolilitosozavari.pdfIn PDF document text
- https://juniorclublivorno.com/sitonews/images_upload/files/dezadozatekixafe.pdfIn PDF document text
- http://www.argentum.com/wp-content/plugins/super-forms/uploads/php/files/42dsuri5dsa4png94ke7cg01ti/silole.pdfIn PDF document text
- http://savitapiti.org/ckfinder/userfiles/files/tenesuxudomatadelopodoke.pdfIn PDF document text
- http://mgtofubbq.com/uploads/files/lusonororifewu.pdfIn PDF document text
- https://realxenon.ru/uploads/files/52288867943.pdfIn PDF document text
- https://vico-inmobiliaria.com/ckfinder/userfiles/files/11641388048.pdfIn PDF document text
- http://farmaciafoglia.eu/userfiles/files/tukame.pdfIn PDF document text
- https://living-stone.lu/userfiles/files/retumo.pdfIn PDF document text
- http://xn--80aagkbrca3apkgkee0a1bi.xn--p1ai/ckfinder/userfiles/files/dobopasedojamadeverik.pdfIn PDF document text
- http://ji-tien.com/userfiles/file/45052861377.pdfIn PDF document text
- https://loyd.rs/images/file/77591016951.pdfIn PDF document text
- https://internationallanguagenavigators.com/media/67961277798.pdfIn PDF document text
- http://www.physedu.in/newsite/userfiles/files/88256323135.pdfIn PDF document text
- http://milkexim.ru/imgeditor/file/36864081448.pdfIn PDF document text
- http://www.ecrivains-consult.fr/easyonline/ckfinder/userfiles/files/zejoguxaduvagaf.pdfIn PDF document text
- https://www.saltriot.com/wp-content/plugins/super-forms/uploads/php/files/bf669dc49010e24947e5ffc696d078c6/23085936534.pdfIn PDF document text
- http://www.tobywells.org/media/fckdir/file/gediwotafov.pdfIn PDF document text
- https://sealskinz.ru/files/file/14194357188.pdfIn PDF document text
- http://aisne.proximeo.com/ckfinder/userfiles/files/bexis.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3vuEKuznOb8/uplcv?utm_term=minecraft+hidden+house+ideasPDF 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_off0000d3da.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD3DA | 17192 bytes |
SHA-256: 402d7e8b3cacfc630667df426216db4f5b55ff5e3070a0f15e6a23ccba08a765 |
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font_01_sfnt_off00010065.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10065 | 10620 bytes |
SHA-256: 883acc50c0eaf8e51845c82a38c32c7ddfad305ecdf1d6c38ea21174353dd4ac |
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font_02_sfnt_off000118a8.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x118A8 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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