MALICIOUS
174
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ClamAV and an ML classifier, with high-severity heuristics indicating embedded JavaScript and a link to an algorithmically-generated URL. The PDF contains numerous external links, many hosted on disposable domains, suggesting a link farm or phishing attempt. The embedded JavaScript likely serves to obfuscate the malicious intent or to directly initiate a download or redirect.
Machine Learning
- Nyx PDF Classifier malicious score 0.9993
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://woft-dining.com/webroot/editor-uploads/files/33813569694.pdf In PDF document text
- https://artemishosp-em.tw/uploads/files/202109201527191821.pdfIn PDF document text
- http://marketingnews.fr/images/file/28779127283.pdfIn PDF document text
- http://ulv-fogger.es/d/files/mivumopawarubejelikosuve.pdfIn PDF document text
- http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/16137b344af281---5926908360.pdfIn PDF document text
- http://studiomedicoveterinariobellucci.eu/userfiles/files/tajubizi.pdfIn PDF document text
- https://codefon.hu/js/ckfinder/userfiles/files/nejepodudagapuguledufor.pdfIn PDF document text
- http://www.afurg.com.br/assets/ckfinder/userfiles/files/82527023285.pdfIn PDF document text
- http://pitin-akutsu.com/js/upload/files/98028389671.pdfIn PDF document text
- https://www.avenueroadadvertising.com/wp-content/plugins/formcraft/file-upload/server/content/files/1614b9af09a81e---kilifol.pdfIn PDF document text
- https://mosaicopeoplecorporation.com/ckfinder/userfiles/files/1000616495.pdfIn PDF document text
- http://dailyliving.nl/ckfinder/userfiles/files/mokigabuxure.pdfIn PDF document text
- http://longarmquiltacademy.net/fckeditor/userfiles/file/47664278365.pdfIn PDF document text
- http://n2nlah.org/UserFiles/file/61585344213.pdfIn PDF document text
- http://www.synagoge-stommeln.de/ckfinder/userfiles/files/jizavafosupozirefikavugug.pdfIn PDF document text
- https://soyana.de/js/ckfinder/userfiles/files/74746178641.pdfIn PDF document text
- http://werkschoenenverkoop.nl/images/docman/files/fobizopezo.pdfIn PDF document text
- http://guerrazzi.info/userfiles/files/15011549538.pdfIn PDF document text
- http://rld-carbon.com/file/zobujal.pdfIn PDF document text
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=iptv+stalker+app+for+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_off0000c7c4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC7C4 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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font_01_sfnt_off0000dfd6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDFD6 | 18824 bytes |
SHA-256: 7a843751c7495635aca3cbc36cfa844a517c9fa8d0e3f187700194569e2bcd1e |
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font_02_sfnt_off000111a5.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x111A5 | 10600 bytes |
SHA-256: d9cd78bd71465bece2abe9c358f37f0825961f9b17021dd0bf23848131f33e1d |
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