MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1203 Exploitation for Client Execution
The PDF contains embedded JavaScript and multiple external URLs, with a high ML classifier score and ClamAV detection indicating malicious intent. The heuristic 'SE_BROWSER_INSTALL_LURE' strongly suggests the document's purpose is to trick the user into installing malicious software disguised as a browser update or extension. The embedded JavaScript likely facilitates this by redirecting the user to one of the listed URLs, which in turn may host the malicious payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9973
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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Browser extension / update installation lure high SE_BROWSER_INSTALL_LUREDocument tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
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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://tt-ural.su/admin/ckfinder/userfiles/files/20286308479.pdf In PDF document text
- http://xn--80aafkatcapceshpicpg3h.xn--p1ai/pict/file/28694335753.pdfIn PDF document text
- https://dascalita.ro/app/webroot/files/userfiles/files/titudejija.pdfIn PDF document text
- http://kingsfci.com/userfiles/file/jumakofazumakexugavokani.pdfIn PDF document text
- http://a-range.ru/wp-content/plugins/formcraft/file-upload/server/content/files/161349f5b43028---85253060434.pdfIn PDF document text
- https://cleartunemonitors.com/ckfinder/userfiles/files/86878191162.pdfIn PDF document text
- http://keletunderground.hu/images/uploaded_pics/file/kesidivonusezufevifexuxo.pdfIn PDF document text
- http://color-gateway.com/userfiles/file/runurefefasapi.pdfIn PDF document text
- https://alves.bg/ckfinder/userfiles/files/daboxejebimapisirev.pdfIn PDF document text
- https://optimustelecoms.com/ckfinder/userfiles/files/zonokaxuwugeboxal.pdfIn PDF document text
- http://aviapartner.biz/js/ckfinder/userfiles/files/35521813604.pdfIn PDF document text
- http://crabandclaw.com/uploads/files/matixe.pdfIn PDF document text
- http://imdad-egypt.com/userfiles/file/wupufidomifopimevexotena.pdfIn PDF document text
- http://mcenterdk.ru/fck_editor_files/files/6039430265.pdfIn PDF document text
- http://gps-tw.com/CKEdit/upload/files/roxulepuvixu.pdfIn PDF document text
- https://konzolstudio.ro/uploaded_files/file/zarifomivumeni.pdfIn PDF document text
- http://gima.ge/admin/ckeditor/ckfinder/userfiles/files/guwokulibesuzifala.pdfIn PDF document text
- http://debnine.net/UserFiles/File/34292251630.pdfIn PDF document text
- http://eternalcycle.com/FCKFiles/file/biduxexefufawobisit.pdfIn PDF document text
- http://steinemann-ag.ru/kalipavidupisu.pdfIn PDF document text
- http://autosoftware.company/autoresponders_images/files/9550771007.pdfIn PDF document text
- http://lidaoxc.com/upload/files/12450307405.pdfIn PDF document text
- http://crocepadrekolbe.it/userfiles/files/firubosufuj.pdfIn PDF document text
- http://pk.mo/userfiles/file/tesukubawixejekiti.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/YTWXjIUwRh0/uplcv?utm_term=send+location+from+android+to+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_off0000c338.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC338 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000db4f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDB4F | 10792 bytes |
SHA-256: eea9bdec386b8d88468681bfc9e0ecbd3462f435f300acd85b59cbdadcdafdae |
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font_02_sfnt_off0000f3eb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF3EB | 16920 bytes |
SHA-256: 87b4f122e0c766d5af4d08548b98928f43e429db3e19076740acc4503c622211 |
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