MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains embedded JavaScript and numerous external links, including one identified as an algorithmically-generated URL hosted on potentially disposable infrastructure. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for phishing or distributing further malware. The embedded JavaScript is a common technique for executing malicious code within PDFs.
Machine Learning
- Nyx PDF Classifier malicious score 0.9912
Heuristics 7
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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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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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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://crewmak.ru/uplcv?utm_term=where+can+i+download+twilight+movies+for+free PDF link annotation
- http://nhadatv.com/webroot/img/files/fonud.pdfIn PDF document text
- https://bharatceramics.in/ckfinder/userfiles/files/runesudakaxoxisonaz.pdfIn PDF document text
- https://powermailer.in/userfiles/file/donuwedinimikenuw.pdfIn PDF document text
- http://ilsogno-bomboniere.com/userfiles/files/dufogosusoboxetuzapuwabo.pdfIn PDF document text
- http://vanillasky-ch.com/images/files/woxujotomilefozisefilis.pdfIn PDF document text
- https://amatnieks.com/pictures/image/zabunuzukigazitifo.pdfIn PDF document text
- http://www.martiusstaden.org.br/js/ckfinder/userfiles/files/notum.pdfIn PDF document text
- http://telegid.tv/userfiles/files/69945148627.pdfIn PDF document text
- http://virtualcharityevents.com/vce_cake/files/files/fijojagogim.pdfIn PDF document text
- https://nomortiga.com/contents/files/13886367449.pdfIn PDF document text
- http://ncdesign.it/userfiles/files/58217647623.pdfIn PDF document text
- http://kustari.net/userfiles/file/37626393605.pdfIn PDF document text
- http://kbautotech.com/board/datafiles/imagefile/gesuvuviragisimet.pdfIn PDF document text
- http://www.predia.cz/userfiles/file/59643309341.pdfIn PDF document text
- https://whereestar.com/marinarubicon/admin/file/54974602688.pdfIn PDF document text
- http://ambulatorioveterinariopisillibertozzi.eu/userfiles/files/63236992917.pdfIn PDF document text
- https://endeligmandag.no/e-brev/data/div/47475611049.pdfIn PDF document text
- http://ecohouse-lab.com/userfiles/file/13149527826.pdfIn PDF document text
- http://vinhthuan.com/upload/files/19215571691.pdfIn PDF document text
- http://bjerkelunden.org/content/files/userfiles/file///15978923046.pdfIn PDF document text
- https://hightechrustremovers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/1613312c65da8b---pojufediwul.pdfIn PDF document text
- http://scea.edu.mn/ckfinder/userfiles/files/demewilitojivelubo.pdfIn PDF document text
- http://xn--o79av69abka850ab6c.com/upload/file/202109061757470379.pdfIn PDF document text
- http://dreamwith.gni.kr/ckupload/files/59011914339.pdfIn PDF document text
- http://ensky-chemical.com/upload/files/63120979667.pdfIn PDF document text
- http://www.injamal.es/nueva/ckfinder/userfiles/files/48329458508.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_off0000ea48.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xEA48 | 17764 bytes |
SHA-256: 214ca7450b01abe6e6671b1541dc4d077402cda68b3d753feb2310951ce870cf |
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font_01_sfnt_off00011838.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x11838 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_02_sfnt_off0001304f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1304F | 11068 bytes |
SHA-256: 79d7ba2d3a71f0d40f94061ec2600780cb94287b3032d3c0f40832e54077def9 |
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