MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file is identified as malicious by ClamAV and an ML classifier, exhibiting characteristics of a phishing lure. It contains embedded JavaScript and presents as an image-only document with an action trigger, typical for directing users to malicious sites. The numerous external URIs, many pointing to PDF files on potentially disposable hosting, suggest a link farm used for distributing further payloads or conducting phishing.
Machine Learning
- Nyx PDF Classifier malicious score 0.9957
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LUREPDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 68 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
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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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Embedded JS stream low PDF_JSPDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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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://yauspeshen.com/ckfinder/userfiles/files/7908774097.pdf In PDF document text
- http://dalhousieretreat.com/cote_dor_import/admin/ckfinder/userfiles/files/muwegeserekikamirabukimut.pdfIn PDF document text
- http://pincailight.com/zk/UploadFile/file/2021090304171473499.pdfIn PDF document text
- http://fvv-hohenfelde.de/sites/default/files/files/xezobupix.pdfIn PDF document text
- https://spandoekland.nl/userfiles/file/33833852986.pdfIn PDF document text
- https://amgaa.org/temp/files/suvowusuxozokezazobaxijuf.pdfIn PDF document text
- http://nassagroup.org/app/webroot/js/ckfinder/userfiles/files/fulupipesomugusa.pdfIn PDF document text
- http://onyx-innovations.com/assets/ckfinder/userfiles/files/zifexoxixutagufimake.pdfIn PDF document text
- https://cometsecurity.in/admin/userfiles/file/gutugulagituzezogazutomo.pdfIn PDF document text
- http://etkindenetim.com/resimler/files/46900195997.pdfIn PDF document text
- https://academiapreprod.riportico.com/userfiles/files/nonosapasiporudan.pdfIn PDF document text
- https://www.inkfactory.pk/wp-content/plugins/formcraft/file-upload/server/content/files/1613b1b2d00145---69092708776.pdfIn PDF document text
- https://amzentransportationindustries.com/admin/imagetemp1/file/24572009157.pdfIn PDF document text
- https://glosunspa.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614314b4895fd---26019659431.pdfIn PDF document text
- http://xnucleus.com/members/member_images/files/17575183126.pdfIn PDF document text
- https://viboot.com/ckfinder/userfiles/files/dodolifanenep.pdfIn PDF document text
- http://bygreenpure.com/userfiles/file/wufegisuzewewagigag.pdfIn PDF document text
- http://cameralehiep.com/hinhanh_fckeditor/file/52210520482.pdfIn PDF document text
- https://observatoire-omic.org/documents/file/71823883225.pdfIn PDF document text
- http://zhongjiukeji.com/upload_fck/file/2021-9-24/20210924072551290619.pdfIn PDF document text
- http://wxeina.com/userfiles/files/71191190735.pdfIn PDF document text
- http://portamarioarchitetto.eu/userfiles/files/jegelunagemonajadoxil.pdfIn PDF document text
- https://inprovitbolivia.com/ckfinder/userfiles/files/zujijomozixomefisupibakof.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/Om9ozkHLxGw/uplcv?utm_term=estimate+computer+power+usagePDF 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_off0000adfe.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xADFE | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000c610.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC610 | 14368 bytes |
SHA-256: a45b4b9321a86b4f15b1399d2f279c5930f40108266448b4c060ef82d07c73b2 |
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font_02_sfnt_off0000ea11.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA11 | 10736 bytes |
SHA-256: 5f3a48ec410b5afab8a92db5a004e270bd8924529b29ee31de70fabfb4c17ff8 |
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