MALICIOUS
134
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, indicating a phishing or trojan payload. The presence of numerous embedded links to external PDF files, coupled with a heuristic indicating a 'download button' lure, suggests a phishing attempt designed to trick users into downloading further malicious content. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic further supports the malicious intent by highlighting the use of disposable hosting for multiple links.
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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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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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 https://netshopnepal.com/userfiles/file/dewegagibipobale.pdf In PDF document text
- http://vejwun.cz/images/wikemodete.pdfIn PDF document text
- http://iburgisidimarsala.eu/userfiles/files/30632033539.pdfIn PDF document text
- https://fonixkoncert.hu/upload/file/borudazozinasafifanoku.pdfIn PDF document text
- https://retentionstudentexperience.com/wp-content/plugins/formcraft/file-upload/server/content/files/161407b57090f3---keterovojoned.pdfIn PDF document text
- https://psychologgia.pl/Upload/file/roxasolijewozu.pdfIn PDF document text
- https://jackyrouxmethode.com/userfiles/file/nebakusaromakirimulanuvuw.pdfIn PDF document text
- http://delve-cr.com/uploads/53628343512.pdfIn PDF document text
- http://nek.ua/wp-content/plugins/formcraft/file-upload/server/content/files/161415a05881f0---68447960866.pdfIn PDF document text
- http://ever-pioneer.com/upload/files/nujugexelosojir.pdfIn PDF document text
- http://moonlightmontessori.com/upload/files/ribakuloxop.pdfIn PDF document text
- https://fallsplat.se/bildbank/file/finabaxagemev.pdfIn PDF document text
- http://savvyais.com/userfiles/file/35334954031.pdfIn PDF document text
- https://bomnuocebara.com/quangbasanpham/app/webroot/upload/image/files/82073855329.pdfIn PDF document text
- http://miyagi.chi-kara.net/Upload/files/zepuwa.pdfIn PDF document text
- http://maketmaster.ru/admin/ckfinder/userfiles/files/45299695384.pdfIn PDF document text
- https://aiwatopup.com/ckfinder/userfiles/files/21312629022.pdfIn PDF document text
- http://papianiarch.it/userfiles/files/7368192690.pdfIn PDF document text
- http://ropesadventure.com/d/files/mefojifelojerokota.pdfIn PDF document text
- http://spadhotel.com/basefile/spadhotelcom/files/9106066219.pdfIn PDF document text
- https://kmkmekanik.com/upload/ckfinder/files/vokam.pdfIn PDF document text
- http://186086.com/upload/files/66610251938.pdfIn PDF document text
- http://lapempi.nl/ckfinder/userfiles/files/84326763254.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/1KS0DP0cxss/uplcv?utm_term=update+idm+to+latest+versionPDF 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_off0000c1b6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC1B6 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000d9cd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD9CD | 10628 bytes |
SHA-256: 6bcfbb87d7939d51816f7a40f4a93f0ddbe70c9629e5b5800777659eea772bc5 |
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font_02_sfnt_off0000f21b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF21B | 17396 bytes |
SHA-256: 7838c579a6b1c907e015eaa92645dd71a2f12642aec3fc63a331082fdd9fc3f9 |
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