MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF_JS heuristic indicates the presence of embedded JavaScript, a common technique for executing malicious code within PDF documents. The ML classifier strongly flagged this sample as malicious, and ClamAV detected it as a phishing trojan. The embedded JavaScript likely attempts to download and execute a second-stage payload from one of the numerous URLs found within the document, which is a typical phishing or malware distribution tactic.
Machine Learning
- Nyx PDF Classifier malicious score 0.9975
Heuristics 6
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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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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://defi128.com/userfiles/files/15177521791.pdf In PDF document text
- http://thailaundry.com/imgUpload/files/mogorerapuju.pdfIn PDF document text
- http://dulichtantai.com/files/uploaded/files/7488046277.pdfIn PDF document text
- https://preciseenergygroup.com/media/fixixezetipuvaz.pdfIn PDF document text
- http://ferrocom-spb.ru/userfiles/files/pededodoxobazizaxaxugan.pdfIn PDF document text
- http://hanyangsteel.com/files/fckeditor/file/11169703846141cfe055fcc.pdfIn PDF document text
- https://gz-topstar.com/wp-content/plugins/super-forms/uploads/php/files/dd768aa48eb31cf1cb1e481104b5a841/72929572465.pdfIn PDF document text
- http://gennarimaq.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1614bbfcb4cba7---wutijaxubuvegizawufa.pdfIn PDF document text
- http://ccforum.kr/uploads/file/1631634122.pdfIn PDF document text
- http://ketoanaca.com/uploads/image/files/66694161982.pdfIn PDF document text
- http://pileshoppen.dk/userfiles/file/towegenugurulovu.pdfIn PDF document text
- https://finliz.lt/i/File/nafevarex.pdfIn PDF document text
- https://gameadvisers.com/js/new/fckeditor/userfiles/file/58104157061.pdfIn PDF document text
- http://oasishs.com/uploads/files/20210927_004915.pdfIn PDF document text
- https://energooptima.hu/upload/File/14624638641.pdfIn PDF document text
- http://phantasos.org/userfiles/file/17057718831.pdfIn PDF document text
- https://tecnomatec.cl/upload/file/39495392400.pdfIn PDF document text
- https://venus-forever.com/image/files/31333593671.pdfIn PDF document text
- https://vayamcs.com/content_files/files/nuwamipam.pdfIn PDF document text
- http://fcvperu.org/data/fcvperu/userfiles/file/disadebovofivewepukawore.pdfIn PDF document text
- http://jn-zhsc.com/upload/63119033026.pdfIn PDF document text
- http://laulumaja.fi/ckfinder/userfiles/files/18053787083.pdfIn PDF document text
- http://mgs-on-track.com/uploads/misc/files/wuxibemuvagudup.pdfIn PDF document text
- https://insinkerator.us/images/uploaded/file/59417244253.pdfIn PDF document text
- http://harchovyk.com/userfiles/file/43537843157.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/DOqCt-cVA4I/uplcv?utm_term=genshin+controller+support+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_off0000b350.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB350 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000cb62.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xCB62 | 16428 bytes |
SHA-256: 51bd7bfc2d4b7444b03667e4a997523621bb9c6f96633fa343cb9a097fde78e3 |
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font_02_sfnt_off0000f5a3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF5A3 | 10748 bytes |
SHA-256: 5c785e4d7656b33e5a41bdd21f64061376ff8f28369818894d9222f3c30c2c9a |
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