MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm and contains embedded JavaScript. Specific URLs and indicators for this sample are listed in the indicators section.
Machine Learning
- Nyx PDF Classifier malicious score 0.9974
Heuristics 6
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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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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://infrive.ru/uplcv?utm_term=best+robocall+blocker+android PDF link annotation
- http://888chji.com/userfiles/files/duzogilujagefazunuxikiwa.pdfIn PDF document text
- http://joyerialaplaza.com/ckfinder/userfiles/files/36327553664.pdfIn PDF document text
- http://trust-law-firm.com/userfiles/file/20210901165751_1334144759.pdfIn PDF document text
- http://ordineveterinarivenezia.eu/userfiles/files/49098600637.pdfIn PDF document text
- http://ryouhurt.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/22674455731.pdfIn PDF document text
- http://termosystem.pl/userfiles/file/fetelamitarakegijolo.pdfIn PDF document text
- http://nmways.com/uploads/fckupload/file/61191526488.pdfIn PDF document text
- https://digireg.at/upload/51745360011.pdfIn PDF document text
- http://gartenstadt-apotheke.com/userfiles/file/puxifudowe.pdfIn PDF document text
- https://cmflower-kkc.com/ckfinder/userfiles/files/96446578829.pdfIn PDF document text
- http://www.linkkorea.co.kr/wp-content/plugins/formcraft/file-upload/server/content/files/1613a899b1766c---miwufejuxezikogu.pdfIn PDF document text
- http://vouchertiket.com/airplane/ckeditor/uploads/files/45208877662.pdfIn PDF document text
- http://atya.eu/files/file/simojo.pdfIn PDF document text
- http://www.pzkexie.com/up_files/file/jiwusigeminesepatuz.pdfIn PDF document text
- https://www.emcp-pmce.ca/_includes/ckfinder/userfiles/files/pavugabuwanadojonam.pdfIn PDF document text
- http://emrc.ie/upload/imagecontent/file/xefufatedibekotijosa.pdfIn PDF document text
- http://tageedesign.com/ssmpt/documents/file/vaboxew.pdfIn PDF document text
- http://fukaofoods.tw/uploads/files/202109040158217532.pdfIn PDF document text
- https://www.hemingway.bg/app/templates/js/ckfinder/userfiles/files/tumugafomike.pdfIn PDF document text
- http://nature-revive.org/files/file/73579636738.pdfIn PDF document text
- https://bulgariapools.com/contents/files/59189902438.pdfIn PDF document text
- https://www.lesson-online.org/wp-content/plugins/super-forms/uploads/php/files/7vufc46iqgjcop3ftcdam534u6/rezevesamedos.pdfIn PDF document text
- http://gartenbaukoeln.de/uploads/files/59858694996.pdfIn PDF document text
- http://lagostena.it/userfiles/files/burogesuvobe.pdfIn PDF document text
- 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_off0000daea.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDAEA | 10648 bytes |
SHA-256: a588c244564e5d8226b4d1f3378c7c6446907919ecbf84b8b6a0bc69aab097ee |
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font_01_sfnt_off0000f372.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF372 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off00010b84.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10B84 | 18160 bytes |
SHA-256: 361f6df13e061e9de7c24c491783d93d14fde4121974d66e43138fc6a3507668 |
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