MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous links to external websites, many of which are hosted on disposable domains or appear to be part of a link farm. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. The embedded JavaScript is a common technique for initiating malicious actions within PDFs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9964
Heuristics 7
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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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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 http://hwangtosidae.com/userData/ebizro_board/file/wetodosuzilejonomu.pdf In PDF document text
- https://nodka.eu/ckeditor/ckfinder/userfiles/files/jegobemobatikiked.pdfIn PDF document text
- https://instalacje-elektryczne.net/ckfinder/userfiles/files/85583046947.pdfIn PDF document text
- http://akiyastyle.com/app/webroot/js/ckfinder/userfiles/files/zinekotasoboxuxanereval.pdfIn PDF document text
- https://pnlcoach.com/misc2/file/In PDF document text
- https://zd-zeta.com/uploads/files/202109120316059309.pdfIn PDF document text
- http://cosyromania.com/media/file/48259139278.pdfIn PDF document text
- http://www.vljainandco.com/userfiles/files/filerapapawu.pdfIn PDF document text
- http://www.autoservis-hubatka.cz/admin/upload/ww/file/fikajapesaboveveviviv.pdfIn PDF document text
- https://internationallanguagenavigators.com/media/jumug.pdfIn PDF document text
- http://podolsk-kondicionery.ru/upload_picture/file/64452578425.pdfIn PDF document text
- http://www.rolstoellift.com/wp-content/plugins/formcraft/file-upload/server/content/files/16143b4d2d59e1---21512929206.pdfIn PDF document text
- https://arch.ua/ckfinder/userfiles/files/63577925498.pdfIn PDF document text
- http://sirinthepgroup.com/userfiles/file/67074127264.pdfIn PDF document text
- https://ndmoyun.com/calisma2/files/uploads/15118009799.pdfIn PDF document text
- https://riondene.ch/img/uploads/file/89105581787.pdfIn PDF document text
- http://kommunikator.nu/demo/userfiles/file///14283745725.pdfIn PDF document text
- https://www.tulsarad.com/my_content/js/ckfinder/userfiles/files/bupotokusano.pdfIn PDF document text
- http://msslink.ru/userfiles/files/43465757862.pdfIn PDF document text
- https://isitekmuhendislik.com/userfiles/file/81960949135.pdfIn PDF document text
- http://xn--80aagkbrca3apkgkee0a1bi.xn--p1ai/ckfinder/userfiles/files/62316903417.pdfIn PDF document text
- https://xrtradingfeedback.com/cmsimages/file/66348563417.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=cercare+file+su+androidPDF 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_off0000dd8f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDD8F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000f5a1.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5A1 | 18572 bytes |
SHA-256: 13066acb7e4c8f16115b57b67908545e6e7e2f709ff2b7a941bc60b8edca6527 |
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font_02_sfnt_off00012702.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12702 | 10500 bytes |
SHA-256: 770eee12dc8960971e48e792b3758ae39616c74e3aba93ba41450f5bf0f68971 |
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