MALICIOUS
166
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains multiple external links, with one identified as an algorithmically-generated URL pointing to a suspicious PDF file. The 'ML_NYX_PDF_MALICIOUS' and 'CLAMAV_DETECTION' heuristics strongly indicate malicious intent. The presence of embedded URLs and the PDF structure suggest a phishing or malware distribution attempt, likely leveraging spearphishing as an initial access vector.
Machine Learning
- Nyx PDF Classifier malicious score 0.9953
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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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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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://tokyosushilohaus.com/uploads/files/luzugoxalupik.pdf In PDF document text
- http://marktoby.com/akram/know_news/admin/userfiles/file/84495519517.pdfIn PDF document text
- http://drzwiukryte.pl/userfiles/file/xikuvu.pdfIn PDF document text
- http://billagelaw.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/91510848499.pdfIn PDF document text
- http://kimwendelldesign.com/ckfinder/userfiles/files/30177914426.pdfIn PDF document text
- https://aldwalia.com/userfiles/files/gezuxelijaki.pdfIn PDF document text
- http://www.fan-consultants.com.tw/ezadmin/ckfinder/userfiles/files/26607275055.pdfIn PDF document text
- http://focalthai.com/file_media/file_image/file/43212145002.pdfIn PDF document text
- http://covina.crazyrockinsushi.com/uploads/files/68275620248.pdfIn PDF document text
- http://uni-farm.pl/ckfinder/userfiles/files/50410409823.pdfIn PDF document text
- http://santehnika34.ru/images/file/juxufi.pdfIn PDF document text
- http://www.telsercom.com/wp-content/plugins/formcraft/file-upload/server/content/files/16132406336027---makulafonasej.pdfIn PDF document text
- http://thegioichuyendong.info/app/webroot/upload/files/51614783650.pdfIn PDF document text
- http://aromata.ru/upload/files/11447865810.pdfIn PDF document text
- http://master-sign.ru/ckfinder/userfiles/files/remefidodi.pdfIn PDF document text
- https://stthomasorthodoxchurchsouthpampady.com/userfiles/file/43023091883.pdfIn PDF document text
- http://zjhywt.com/images/upload/File/39141411750.pdfIn PDF document text
- http://kangmeideyiliao.com/uploadfile/file///2021090507513754.pdfIn PDF document text
- http://thefutureofgolf.eu/wp-content/plugins/formcraft/file-upload/server/content/files/161316d4fe32a5---lotulasosig.pdfIn PDF document text
- http://www.mousumibanerjee.com/fckimages/file/popiruvofazijusinovoj.pdfIn PDF document text
- http://decom.pro/admin/ckfinder/userfiles/files/zumodanikigorajumo.pdfIn PDF document text
- https://tradingphrases.net/userfiles/files/dezofozaxefagojijexemiwub.pdfIn PDF document text
- https://pacie.vn/web/uploads/files/14531149850.pdfIn PDF document text
- http://firmen-bekleidung.at/userfiles/file/9790395109.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=create+folder+shortcut+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_off0000d62f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD62F | 10704 bytes |
SHA-256: 08252456b6d350105e63924b7740c9ed9122547e014ecf98351d4d828bc1a7b2 |
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font_01_sfnt_off0000eeb5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEEB5 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off000106c7.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x106C7 | 17104 bytes |
SHA-256: 3d81615c35e6a10e1eaa6c245e53375dedb7607b1c656bd64cbebecafed1536e |
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