MALICIOUS
142
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains an embedded JavaScript stream and numerous external URIs, many of which are part of a link farm designed to obscure the true destination. The ML classifier and ClamAV detection strongly indicate malicious intent, likely to trick users into downloading a secondary payload via the deceptive links.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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://worldcar.jp/userfiles/files/88703960596.pdf In PDF document text
- https://yukkumpulgroup1.com/contents/files/mujapepakubakefuroxufoxet.pdfIn PDF document text
- https://coolingrealestate.com/your-home-cleaner/FCKuploads/file/zabuzez.pdfIn PDF document text
- http://wolfroccatiassociati.it/userfiles/files/metowitikexokegikupawon.pdfIn PDF document text
- http://gamjagolla.com/uploads/files/vinenifosedifojijako.pdfIn PDF document text
- http://www.cuerpomenteyespiritu.es/wp-content/plugins/formcraft/file-upload/server/content/files/1612eb3b18db5f---97198514348.pdfIn PDF document text
- https://pasarant0g3l-turbo-h1t.com/contents/files/80683756431.pdfIn PDF document text
- https://dla-pracownika.pl/pliki_user/File/53105365299.pdfIn PDF document text
- https://coil.hk/upload/files/30637538950.pdfIn PDF document text
- http://gfb.it/upload/fck/file/34867238485.pdfIn PDF document text
- http://xn--oy2b9bv81anouola.com/upload/file/202109160304539401.pdfIn PDF document text
- https://vayamcs.com/content_files/files/35887335490.pdfIn PDF document text
- https://stpm-sa.com/userfiles/file/ruvovobupenafolipapo.pdfIn PDF document text
- http://arserwood.com/js/fckeditor/editor/filemanager/connectors/php/connector.php/upfiles/file/210914122608442697y3s5us.pdfIn PDF document text
- http://halongwave.com/userfiles/file/70905112544.pdfIn PDF document text
- https://www.ijestr.com/ckfinder/userfiles/files/89766434832.pdfIn PDF document text
- http://client.diffuse.info/files/getojavepikizoxedi.pdfIn PDF document text
- http://vinczeandlaszlo.com/upload/munesedolixosutedaxutogi.pdfIn PDF document text
- http://yaan121.com/uploads/files/202109051509411958.pdfIn PDF document text
- https://buddhaart.in/userfiles/file/91157487022.pdfIn PDF document text
- https://ibeguiristain.com/userfiles/files/mugofezuvewuposuzek.pdfIn PDF document text
- http://nanobubblevietnam.com/uploads/userfiles/file/19396004565.pdfIn PDF document text
- https://www.getfitcrew.com/wp-content/plugins/formcraft/file-upload/server/content/files/1613516ea77255---35737281877.pdfIn PDF document text
- https://cursosadistanciayonline.com/medios/files/vizunetu.pdfIn PDF document text
- http://tfforming.ru/d/files/xogezadosaxazuxapi.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/3CAf4wW3hvY/uplcv?utm_term=cube+call+recorder+for+iphonePDF 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_off0000c885.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC885 | 18324 bytes |
SHA-256: 952c880fa05fb51fbc3b819a3cfa85f0e362a509bbaa2538b68363ed5049c27d |
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font_01_sfnt_off0000f7ba.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF7BA | 10720 bytes |
SHA-256: 36feaf4cbf6d0e5aa2c148705469dd8c9b6b6b42c53797f0738ed9f00d712f61 |
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font_02_sfnt_off00010ff9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10FF9 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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