MALICIOUS
142
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript, which is often used to download and execute malicious payloads. The presence of numerous external URIs and a 'download button' heuristic suggests a phishing or social engineering lure. ClamAV detection and ML classification further support its malicious nature, indicating it's likely a downloader or part of a phishing campaign.
Machine Learning
- Nyx PDF Classifier malicious score 0.9951
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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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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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://rubenoferro.com/userfiles/file/pubenizagatudunukiju.pdf In PDF document text
- http://thucphamchucnangmy.vn/uploads/files/vikinopidid.pdfIn PDF document text
- http://gongin.humenia.com/upload/userfiles/2021/09/files/210908155001.pdfIn PDF document text
- https://hargagila.com/uploads/image/files/ruxexopurowa.pdfIn PDF document text
- http://czyxchem.com/upload/files/68989973076.pdfIn PDF document text
- https://greenbins.ca/ckfinder/userfiles/files/zekitusowakiko.pdfIn PDF document text
- http://xn----dtbsgbucafmmaf.xn--p1ai/servimages/editor/files/bitivubeburiwof.pdfIn PDF document text
- https://mercerapparelss.com/userfiles/files/90831800777.pdfIn PDF document text
- http://tufaghanafc.com/js/ckfinder/userfiles/files/xuvugakez.pdfIn PDF document text
- http://bumsnab.ru/uploads/files/ginonom.pdfIn PDF document text
- https://kaplaitalia.it/userfiles/files/83666442110.pdfIn PDF document text
- https://rcot.org/userfiles/file/52892429256.pdfIn PDF document text
- http://misosmile.com/upload/editor/files/terojozozuwewinikagaf.pdfIn PDF document text
- http://mobiliteit.nu/files/90073176635.pdfIn PDF document text
- https://eminenceconstruction.ca/viking1/uploads/files/24407697220.pdfIn PDF document text
- http://audiomaster.se/wp-content/plugins/formcraft/file-upload/server/content/files/161364c3f90f58---32950255902.pdfIn PDF document text
- http://www.kickcommerce.com/userfiles/file/70399283925.pdfIn PDF document text
- http://babamoleskine.com/files/file/25910404904.pdfIn PDF document text
- http://xn--66-6kc8bfmkmjd.xn--p1ai/admin/ckfinder/userfiles/files/mawolukexetutorirotefo.pdfIn PDF document text
- http://mpwlawpa.com/customer/3/d/9/3d947ad6ce2568d98b832ccf5548371bFile/17040571798.pdfIn PDF document text
- http://krzysztofmalec.pl/gfx/fck/file/87735532288.pdfIn PDF document text
- https://slezanie.eu/userfiles/file/jelupeg.pdfIn PDF document text
- http://chocolatycakes.com/wp-content/plugins/formcraft/file-upload/server/content/files/161373503c97f9---xegozon.pdfIn PDF document text
- http://cpk.by/ckfinder/userfiles/files/poxitotepinirevaben.pdfIn PDF document text
- http://kubabus.cz/novy-web/upload/file/75547257009.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=wwe+immortals+hackPDF 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_off0000dfa6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDFA6 | 19456 bytes |
SHA-256: fd9dcb45ef9dbb0a894209d9bf3f4233ea434f695a93b86fc65f8ad1984daa53 |
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font_01_sfnt_off00011221.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11221 | 10564 bytes |
SHA-256: e9c11dcecc03d0dfce46138871ab1189b900698117ebc0b3af25170167ef689f |
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font_02_sfnt_off00012a4d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12A4D | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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