MALICIOUS
142
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is a common technique for executing malicious code. The ML classifier and ClamAV detection strongly indicate malicious intent. The embedded JavaScript likely redirects the user to a malicious URL, as suggested by the PDF_URI heuristic and the presence of numerous external links, some pointing to potentially disposable domains.
Machine Learning
- Nyx PDF Classifier malicious score 0.9917
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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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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://dade666.com/userfiles/202109file/2021090908010770554.pdf In PDF document text
- http://www.rupankar.com/fckimages/file/vafigibivix.pdfIn PDF document text
- http://bpsstudio.hu/uploads/93976615435.pdfIn PDF document text
- https://www.cfo-search.com/wp-content/plugins/formcraft/file-upload/server/content/files/161316c823f024---83984851797.pdfIn PDF document text
- http://szm.hu/userfiles/file/korek.pdfIn PDF document text
- http://synergyproperty.com/images/files/64131277517.pdfIn PDF document text
- https://comfort8889.com/upload/files/duvavasepumadimijowukip.pdfIn PDF document text
- https://www.mftelhas.com.br/adm/Editor/ckfinder/userfiles/files/31505044967.pdfIn PDF document text
- http://unseenadventure.com/userfiles/file/1758200226.pdfIn PDF document text
- https://producedepot.us/userfiles/files/nukisubodoruka.pdfIn PDF document text
- http://emiem.pl/public/upload/ckfinder/userfiles/files/8124772692.pdfIn PDF document text
- http://membranekeyboard.pl/_data/file/46790407305.pdfIn PDF document text
- http://bugaboo-buffalo.eu/UserFiles/File/dakazosupabawezusazot.pdfIn PDF document text
- https://frasertechno.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613a4b911153b---mamarevexisejepozenakimi.pdfIn PDF document text
- http://gulfapex.com/uploads/file/juregoturexolavoke.pdfIn PDF document text
- http://jrpst.pl/userfiles/file/beruvozotafulevanabegesan.pdfIn PDF document text
- http://hk-keber.de/images/file/53388097587.pdfIn PDF document text
- https://liantoong.com/archive/upload/files/fuwefelefivutefokifewisi.pdfIn PDF document text
- https://ariconium.cz/webpagebuilder/ckfinder/userfiles/files/givibulutotezumazako.pdfIn PDF document text
- http://eko-baby.ru/userfiles/file/76127171819.pdfIn PDF document text
- http://www.kevimotor-rock.hu/files/files/83393264637.pdfIn PDF document text
- http://autohondl.cz/userfiles/file/91779057047.pdfIn PDF document text
- http://www.pantonerestauri.com/ckfinder/userfiles/files/sarixanetiwibegaxopelenuw.pdfIn PDF document text
- https://vietnamairlinescorp.org/js/ckfinder/userfiles/files/53558600836.pdfIn PDF document text
- http://ohana1bbq.com/uploads/files/zuvaxetubojaw.pdfIn PDF document text
- http://algarestofos.pnh.pt/js/ckfinder/userfiles/files/40042842567.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/1xuhb7AK25c/uplcv?utm_term=asus+android+bootloader+interface+downloadPDF 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_off0000d8fb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD8FB | 10776 bytes |
SHA-256: 38c4567b8e72b919e1542739d82007226bf5992e158422d62f9aa20fa8d6752b |
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font_01_sfnt_off0000f1fc.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF1FC | 19108 bytes |
SHA-256: c050028ca56ba4b8dd280f8c389c5f83b5d12c075ae6de1cedb1f3f545d7da20 |
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font_02_sfnt_off00012448.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12448 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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